cc44089440
circular, convex, concave) and performs efficient collision detection agains these build volumes. As of now, collision detection is performed against a convex hull of a concave build volume for efficency. GCodeProcessor::Result renamed out of GCodeProcessor to GCodeProcessorResult, so it could be forward declared. Plater newly exports BuildVolume, not Bed3D. Bed3D is a rendering class, while BuildVolume is a purely geometric class. Reduced usage of global wxGetApp, the Bed3D is passed as a parameter to View3D/Preview/GLCanvas. Convex hull code was extracted from Geometry.cpp/hpp to Geometry/ConvexHulll.cpp,hpp. New test inside_convex_polygon(). New efficent point inside polygon test: Decompose convex hull to bottom / top parts and use the decomposition to detect point inside a convex polygon in O(log n). decompose_convex_polygon_top_bottom(), inside_convex_polygon(). New Circle constructing functions: circle_ransac() and circle_taubin_newton(). New polygon_is_convex() test with unit tests.
1781 lines
72 KiB
C++
1781 lines
72 KiB
C++
#include <GL/glew.h>
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#if ENABLE_SMOOTH_NORMALS
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#include <igl/per_face_normals.h>
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#include <igl/per_corner_normals.h>
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#include <igl/per_vertex_normals.h>
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#endif // ENABLE_SMOOTH_NORMALS
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#include "3DScene.hpp"
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#include "GLShader.hpp"
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#include "GUI_App.hpp"
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#include "Plater.hpp"
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#include "BitmapCache.hpp"
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#include "libslic3r/BuildVolume.hpp"
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#include "libslic3r/ExtrusionEntity.hpp"
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#include "libslic3r/ExtrusionEntityCollection.hpp"
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#include "libslic3r/Geometry.hpp"
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#include "libslic3r/Print.hpp"
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#include "libslic3r/SLAPrint.hpp"
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#include "libslic3r/Slicing.hpp"
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#include "libslic3r/Format/STL.hpp"
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#include "libslic3r/Utils.hpp"
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#include "libslic3r/AppConfig.hpp"
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#include "libslic3r/PresetBundle.hpp"
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#include "libslic3r/ClipperUtils.hpp"
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#include "libslic3r/Tesselate.hpp"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <boost/log/trivial.hpp>
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#include <boost/filesystem/operations.hpp>
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#include <boost/algorithm/string/predicate.hpp>
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#include <Eigen/Dense>
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#ifdef HAS_GLSAFE
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void glAssertRecentCallImpl(const char* file_name, unsigned int line, const char* function_name)
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{
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#if defined(NDEBUG)
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// In release mode, only show OpenGL errors if sufficiently high loglevel.
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if (Slic3r::get_logging_level() < 5)
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return;
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#endif // NDEBUG
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GLenum err = glGetError();
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if (err == GL_NO_ERROR)
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return;
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const char* sErr = 0;
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switch (err) {
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case GL_INVALID_ENUM: sErr = "Invalid Enum"; break;
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case GL_INVALID_VALUE: sErr = "Invalid Value"; break;
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// be aware that GL_INVALID_OPERATION is generated if glGetError is executed between the execution of glBegin and the corresponding execution of glEnd
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case GL_INVALID_OPERATION: sErr = "Invalid Operation"; break;
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case GL_STACK_OVERFLOW: sErr = "Stack Overflow"; break;
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case GL_STACK_UNDERFLOW: sErr = "Stack Underflow"; break;
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case GL_OUT_OF_MEMORY: sErr = "Out Of Memory"; break;
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default: sErr = "Unknown"; break;
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}
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BOOST_LOG_TRIVIAL(error) << "OpenGL error in " << file_name << ":" << line << ", function " << function_name << "() : " << (int)err << " - " << sErr;
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assert(false);
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}
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#endif // HAS_GLSAFE
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namespace Slic3r {
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#if ENABLE_SMOOTH_NORMALS
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static void smooth_normals_corner(TriangleMesh& mesh, std::vector<stl_normal>& normals)
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{
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mesh.repair();
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using MapMatrixXfUnaligned = Eigen::Map<const Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor | Eigen::DontAlign>>;
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using MapMatrixXiUnaligned = Eigen::Map<const Eigen::Matrix<int, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor | Eigen::DontAlign>>;
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std::vector<stl_normal> face_normals(mesh.stl.stats.number_of_facets);
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for (uint32_t i = 0; i < mesh.stl.stats.number_of_facets; ++i) {
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face_normals[i] = mesh.stl.facet_start[i].normal;
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}
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Eigen::MatrixXd vertices = MapMatrixXfUnaligned(mesh.its.vertices.front().data(),
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Eigen::Index(mesh.its.vertices.size()), 3).cast<double>();
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Eigen::MatrixXi indices = MapMatrixXiUnaligned(mesh.its.indices.front().data(),
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Eigen::Index(mesh.its.indices.size()), 3);
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Eigen::MatrixXd in_normals = MapMatrixXfUnaligned(face_normals.front().data(),
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Eigen::Index(face_normals.size()), 3).cast<double>();
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Eigen::MatrixXd out_normals;
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igl::per_corner_normals(vertices, indices, in_normals, 1.0, out_normals);
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normals = std::vector<stl_normal>(mesh.its.vertices.size());
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for (size_t i = 0; i < mesh.its.indices.size(); ++i) {
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for (size_t j = 0; j < 3; ++j) {
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normals[mesh.its.indices[i][j]] = out_normals.row(i * 3 + j).cast<float>();
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}
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}
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}
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static void smooth_normals_vertex(TriangleMesh& mesh, std::vector<stl_normal>& normals)
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{
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mesh.repair();
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using MapMatrixXfUnaligned = Eigen::Map<const Eigen::Matrix<float, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor | Eigen::DontAlign>>;
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using MapMatrixXiUnaligned = Eigen::Map<const Eigen::Matrix<int, Eigen::Dynamic, Eigen::Dynamic, Eigen::RowMajor | Eigen::DontAlign>>;
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Eigen::MatrixXd vertices = MapMatrixXfUnaligned(mesh.its.vertices.front().data(),
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Eigen::Index(mesh.its.vertices.size()), 3).cast<double>();
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Eigen::MatrixXi indices = MapMatrixXiUnaligned(mesh.its.indices.front().data(),
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Eigen::Index(mesh.its.indices.size()), 3);
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Eigen::MatrixXd out_normals;
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// igl::per_vertex_normals(vertices, indices, igl::PER_VERTEX_NORMALS_WEIGHTING_TYPE_UNIFORM, out_normals);
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// igl::per_vertex_normals(vertices, indices, igl::PER_VERTEX_NORMALS_WEIGHTING_TYPE_AREA, out_normals);
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igl::per_vertex_normals(vertices, indices, igl::PER_VERTEX_NORMALS_WEIGHTING_TYPE_ANGLE, out_normals);
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// igl::per_vertex_normals(vertices, indices, igl::PER_VERTEX_NORMALS_WEIGHTING_TYPE_DEFAULT, out_normals);
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normals = std::vector<stl_normal>(mesh.its.vertices.size());
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for (size_t i = 0; i < static_cast<size_t>(out_normals.rows()); ++i) {
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normals[i] = out_normals.row(i).cast<float>();
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}
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}
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#endif // ENABLE_SMOOTH_NORMALS
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#if ENABLE_SMOOTH_NORMALS
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void GLIndexedVertexArray::load_mesh_full_shading(const TriangleMesh& mesh, bool smooth_normals)
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#else
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void GLIndexedVertexArray::load_mesh_full_shading(const TriangleMesh& mesh)
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#endif // ENABLE_SMOOTH_NORMALS
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{
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assert(triangle_indices.empty() && vertices_and_normals_interleaved_size == 0);
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assert(quad_indices.empty() && triangle_indices_size == 0);
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assert(vertices_and_normals_interleaved.size() % 6 == 0 && quad_indices_size == vertices_and_normals_interleaved.size());
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#if ENABLE_SMOOTH_NORMALS
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if (smooth_normals) {
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TriangleMesh new_mesh(mesh);
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std::vector<stl_normal> normals;
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smooth_normals_corner(new_mesh, normals);
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// smooth_normals_vertex(new_mesh, normals);
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this->vertices_and_normals_interleaved.reserve(this->vertices_and_normals_interleaved.size() + 3 * 2 * new_mesh.its.vertices.size());
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for (size_t i = 0; i < new_mesh.its.vertices.size(); ++i) {
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const stl_vertex& v = new_mesh.its.vertices[i];
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const stl_normal& n = normals[i];
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this->push_geometry(v(0), v(1), v(2), n(0), n(1), n(2));
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}
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for (size_t i = 0; i < new_mesh.its.indices.size(); ++i) {
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const stl_triangle_vertex_indices& idx = new_mesh.its.indices[i];
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this->push_triangle(idx(0), idx(1), idx(2));
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}
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}
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else {
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#endif // ENABLE_SMOOTH_NORMALS
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this->load_its_flat_shading(mesh.its);
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#if ENABLE_SMOOTH_NORMALS
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}
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#endif // ENABLE_SMOOTH_NORMALS
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}
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void GLIndexedVertexArray::load_its_flat_shading(const indexed_triangle_set &its)
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{
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this->vertices_and_normals_interleaved.reserve(this->vertices_and_normals_interleaved.size() + 3 * 3 * 2 * its.indices.size());
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unsigned int vertices_count = 0;
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for (int i = 0; i < int(its.indices.size()); ++ i) {
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stl_triangle_vertex_indices face = its.indices[i];
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stl_vertex vertex[3] = { its.vertices[face[0]], its.vertices[face[1]], its.vertices[face[2]] };
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stl_vertex n = face_normal_normalized(vertex);
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for (int j = 0; j < 3; ++j)
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this->push_geometry(vertex[j](0), vertex[j](1), vertex[j](2), n(0), n(1), n(2));
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this->push_triangle(vertices_count, vertices_count + 1, vertices_count + 2);
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vertices_count += 3;
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}
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}
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void GLIndexedVertexArray::finalize_geometry(bool opengl_initialized)
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{
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assert(this->vertices_and_normals_interleaved_VBO_id == 0);
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assert(this->triangle_indices_VBO_id == 0);
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assert(this->quad_indices_VBO_id == 0);
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if (! opengl_initialized) {
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// Shrink the data vectors to conserve memory in case the data cannot be transfered to the OpenGL driver yet.
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this->shrink_to_fit();
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return;
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}
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if (! this->vertices_and_normals_interleaved.empty()) {
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glsafe(::glGenBuffers(1, &this->vertices_and_normals_interleaved_VBO_id));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id));
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glsafe(::glBufferData(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved.size() * 4, this->vertices_and_normals_interleaved.data(), GL_STATIC_DRAW));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
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this->vertices_and_normals_interleaved.clear();
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}
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if (! this->triangle_indices.empty()) {
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glsafe(::glGenBuffers(1, &this->triangle_indices_VBO_id));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id));
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glsafe(::glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices.size() * 4, this->triangle_indices.data(), GL_STATIC_DRAW));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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this->triangle_indices.clear();
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}
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if (! this->quad_indices.empty()) {
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glsafe(::glGenBuffers(1, &this->quad_indices_VBO_id));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices_VBO_id));
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glsafe(::glBufferData(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices.size() * 4, this->quad_indices.data(), GL_STATIC_DRAW));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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this->quad_indices.clear();
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}
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}
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void GLIndexedVertexArray::release_geometry()
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{
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if (this->vertices_and_normals_interleaved_VBO_id) {
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glsafe(::glDeleteBuffers(1, &this->vertices_and_normals_interleaved_VBO_id));
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this->vertices_and_normals_interleaved_VBO_id = 0;
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}
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if (this->triangle_indices_VBO_id) {
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glsafe(::glDeleteBuffers(1, &this->triangle_indices_VBO_id));
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this->triangle_indices_VBO_id = 0;
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}
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if (this->quad_indices_VBO_id) {
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glsafe(::glDeleteBuffers(1, &this->quad_indices_VBO_id));
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this->quad_indices_VBO_id = 0;
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}
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this->clear();
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}
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void GLIndexedVertexArray::render() const
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{
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assert(this->vertices_and_normals_interleaved_VBO_id != 0);
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assert(this->triangle_indices_VBO_id != 0 || this->quad_indices_VBO_id != 0);
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id));
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glsafe(::glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), (const void*)(3 * sizeof(float))));
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glsafe(::glNormalPointer(GL_FLOAT, 6 * sizeof(float), nullptr));
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glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
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glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
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// Render using the Vertex Buffer Objects.
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if (this->triangle_indices_size > 0) {
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id));
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glsafe(::glDrawElements(GL_TRIANGLES, GLsizei(this->triangle_indices_size), GL_UNSIGNED_INT, nullptr));
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glsafe(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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}
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if (this->quad_indices_size > 0) {
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices_VBO_id));
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glsafe(::glDrawElements(GL_QUADS, GLsizei(this->quad_indices_size), GL_UNSIGNED_INT, nullptr));
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glsafe(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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}
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glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
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glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
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}
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void GLIndexedVertexArray::render(
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const std::pair<size_t, size_t>& tverts_range,
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const std::pair<size_t, size_t>& qverts_range) const
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{
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#if ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
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// this method has been called before calling finalize() ?
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if (this->vertices_and_normals_interleaved_VBO_id == 0 && !this->vertices_and_normals_interleaved.empty())
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return;
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#endif // ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
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assert(this->vertices_and_normals_interleaved_VBO_id != 0);
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assert(this->triangle_indices_VBO_id != 0 || this->quad_indices_VBO_id != 0);
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// Render using the Vertex Buffer Objects.
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, this->vertices_and_normals_interleaved_VBO_id));
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glsafe(::glVertexPointer(3, GL_FLOAT, 6 * sizeof(float), (const void*)(3 * sizeof(float))));
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glsafe(::glNormalPointer(GL_FLOAT, 6 * sizeof(float), nullptr));
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glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
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glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
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if (this->triangle_indices_size > 0) {
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->triangle_indices_VBO_id));
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glsafe(::glDrawElements(GL_TRIANGLES, GLsizei(std::min(this->triangle_indices_size, tverts_range.second - tverts_range.first)), GL_UNSIGNED_INT, (const void*)(tverts_range.first * 4)));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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}
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if (this->quad_indices_size > 0) {
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, this->quad_indices_VBO_id));
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glsafe(::glDrawElements(GL_QUADS, GLsizei(std::min(this->quad_indices_size, qverts_range.second - qverts_range.first)), GL_UNSIGNED_INT, (const void*)(qverts_range.first * 4)));
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glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
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}
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glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
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glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
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glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
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}
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const float GLVolume::SinkingContours::HalfWidth = 0.25f;
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void GLVolume::SinkingContours::render()
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{
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update();
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glsafe(::glPushMatrix());
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glsafe(::glTranslated(m_shift.x(), m_shift.y(), m_shift.z()));
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m_model.render();
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glsafe(::glPopMatrix());
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}
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void GLVolume::SinkingContours::update()
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{
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int object_idx = m_parent.object_idx();
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Model& model = GUI::wxGetApp().plater()->model();
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if (0 <= object_idx && object_idx < (int)model.objects.size() && m_parent.is_sinking() && !m_parent.is_below_printbed()) {
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const BoundingBoxf3& box = m_parent.transformed_convex_hull_bounding_box();
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if (!m_old_box.size().isApprox(box.size()) || m_old_box.min.z() != box.min.z()) {
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m_old_box = box;
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m_shift = Vec3d::Zero();
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const TriangleMesh& mesh = model.objects[object_idx]->volumes[m_parent.volume_idx()]->mesh();
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m_model.reset();
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GUI::GLModel::InitializationData init_data;
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MeshSlicingParams slicing_params;
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slicing_params.trafo = m_parent.world_matrix();
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Polygons polygons = union_(slice_mesh(mesh.its, 0.0f, slicing_params));
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for (ExPolygon &expoly : diff_ex(expand(polygons, float(scale_(HalfWidth))), shrink(polygons, float(scale_(HalfWidth))))) {
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GUI::GLModel::InitializationData::Entity entity;
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entity.type = GUI::GLModel::PrimitiveType::Triangles;
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const std::vector<Vec3d> triangulation = triangulate_expolygon_3d(expoly);
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for (const Vec3d& v : triangulation) {
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entity.positions.emplace_back(v.cast<float>() + Vec3f(0.0f, 0.0f, 0.015f)); // add a small positive z to avoid z-fighting
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entity.normals.emplace_back(Vec3f::UnitZ());
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const size_t positions_count = entity.positions.size();
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if (positions_count % 3 == 0) {
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entity.indices.emplace_back(positions_count - 3);
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entity.indices.emplace_back(positions_count - 2);
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entity.indices.emplace_back(positions_count - 1);
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}
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}
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init_data.entities.emplace_back(entity);
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}
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m_model.init_from(init_data);
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}
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else
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m_shift = box.center() - m_old_box.center();
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}
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else
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m_model.reset();
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}
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const std::array<float, 4> GLVolume::SELECTED_COLOR = { 0.0f, 1.0f, 0.0f, 1.0f };
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const std::array<float, 4> GLVolume::HOVER_SELECT_COLOR = { 0.4f, 0.9f, 0.1f, 1.0f };
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const std::array<float, 4> GLVolume::HOVER_DESELECT_COLOR = { 1.0f, 0.75f, 0.75f, 1.0f };
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const std::array<float, 4> GLVolume::OUTSIDE_COLOR = { 0.0f, 0.38f, 0.8f, 1.0f };
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const std::array<float, 4> GLVolume::SELECTED_OUTSIDE_COLOR = { 0.19f, 0.58f, 1.0f, 1.0f };
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const std::array<float, 4> GLVolume::DISABLED_COLOR = { 0.25f, 0.25f, 0.25f, 1.0f };
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const std::array<float, 4> GLVolume::SLA_SUPPORT_COLOR = { 0.75f, 0.75f, 0.75f, 1.0f };
|
|
const std::array<float, 4> GLVolume::SLA_PAD_COLOR = { 0.0f, 0.2f, 0.0f, 1.0f };
|
|
const std::array<float, 4> GLVolume::NEUTRAL_COLOR = { 0.9f, 0.9f, 0.9f, 1.0f };
|
|
const std::array<std::array<float, 4>, 4> GLVolume::MODEL_COLOR = { {
|
|
{ 1.0f, 1.0f, 0.0f, 1.f },
|
|
{ 1.0f, 0.5f, 0.5f, 1.f },
|
|
{ 0.5f, 1.0f, 0.5f, 1.f },
|
|
{ 0.5f, 0.5f, 1.0f, 1.f }
|
|
} };
|
|
|
|
GLVolume::GLVolume(float r, float g, float b, float a)
|
|
: m_sla_shift_z(0.0)
|
|
, m_sinking_contours(*this)
|
|
// geometry_id == 0 -> invalid
|
|
, geometry_id(std::pair<size_t, size_t>(0, 0))
|
|
, extruder_id(0)
|
|
, selected(false)
|
|
, disabled(false)
|
|
, printable(true)
|
|
, is_active(true)
|
|
, zoom_to_volumes(true)
|
|
, shader_outside_printer_detection_enabled(false)
|
|
, is_outside(false)
|
|
, hover(HS_None)
|
|
, is_modifier(false)
|
|
, is_wipe_tower(false)
|
|
, is_extrusion_path(false)
|
|
, force_transparent(false)
|
|
, force_native_color(false)
|
|
, force_neutral_color(false)
|
|
, force_sinking_contours(false)
|
|
, tverts_range(0, size_t(-1))
|
|
, qverts_range(0, size_t(-1))
|
|
{
|
|
color = { r, g, b, a };
|
|
set_render_color(color);
|
|
}
|
|
|
|
void GLVolume::set_color(const std::array<float, 4>& rgba)
|
|
{
|
|
color = rgba;
|
|
}
|
|
|
|
void GLVolume::set_render_color(float r, float g, float b, float a)
|
|
{
|
|
render_color = { r, g, b, a };
|
|
}
|
|
|
|
void GLVolume::set_render_color(const std::array<float, 4>& rgba)
|
|
{
|
|
render_color = rgba;
|
|
}
|
|
|
|
void GLVolume::set_render_color()
|
|
{
|
|
bool outside = is_outside || is_below_printbed();
|
|
|
|
if (force_native_color || force_neutral_color) {
|
|
if (outside && shader_outside_printer_detection_enabled)
|
|
set_render_color(OUTSIDE_COLOR);
|
|
else {
|
|
if (force_native_color)
|
|
set_render_color(color);
|
|
else
|
|
set_render_color(NEUTRAL_COLOR);
|
|
}
|
|
}
|
|
else {
|
|
if (hover == HS_Select)
|
|
set_render_color(HOVER_SELECT_COLOR);
|
|
else if (hover == HS_Deselect)
|
|
set_render_color(HOVER_DESELECT_COLOR);
|
|
else if (selected)
|
|
set_render_color(outside ? SELECTED_OUTSIDE_COLOR : SELECTED_COLOR);
|
|
else if (disabled)
|
|
set_render_color(DISABLED_COLOR);
|
|
else if (outside && shader_outside_printer_detection_enabled)
|
|
set_render_color(OUTSIDE_COLOR);
|
|
else
|
|
set_render_color(color);
|
|
}
|
|
|
|
if (!printable) {
|
|
render_color[0] /= 4;
|
|
render_color[1] /= 4;
|
|
render_color[2] /= 4;
|
|
}
|
|
|
|
if (force_transparent)
|
|
render_color[3] = color[3];
|
|
}
|
|
|
|
std::array<float, 4> color_from_model_volume(const ModelVolume& model_volume)
|
|
{
|
|
std::array<float, 4> color;
|
|
if (model_volume.is_negative_volume()) {
|
|
color[0] = 0.2f;
|
|
color[1] = 0.2f;
|
|
color[2] = 0.2f;
|
|
}
|
|
else if (model_volume.is_modifier()) {
|
|
#if ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
color[0] = 1.0f;
|
|
color[1] = 1.0f;
|
|
color[2] = 0.2f;
|
|
#else
|
|
color[0] = 0.2f;
|
|
color[1] = 1.0f;
|
|
color[2] = 0.2f;
|
|
#endif // ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
}
|
|
else if (model_volume.is_support_blocker()) {
|
|
color[0] = 1.0f;
|
|
color[1] = 0.2f;
|
|
color[2] = 0.2f;
|
|
}
|
|
else if (model_volume.is_support_enforcer()) {
|
|
color[0] = 0.2f;
|
|
color[1] = 0.2f;
|
|
color[2] = 1.0f;
|
|
}
|
|
color[3] = model_volume.is_model_part() ? 1.f : 0.5f;
|
|
return color;
|
|
}
|
|
|
|
Transform3d GLVolume::world_matrix() const
|
|
{
|
|
Transform3d m = m_instance_transformation.get_matrix() * m_volume_transformation.get_matrix();
|
|
m.translation()(2) += m_sla_shift_z;
|
|
return m;
|
|
}
|
|
|
|
bool GLVolume::is_left_handed() const
|
|
{
|
|
const Vec3d &m1 = m_instance_transformation.get_mirror();
|
|
const Vec3d &m2 = m_volume_transformation.get_mirror();
|
|
return m1.x() * m1.y() * m1.z() * m2.x() * m2.y() * m2.z() < 0.;
|
|
}
|
|
|
|
const BoundingBoxf3& GLVolume::transformed_bounding_box() const
|
|
{
|
|
if (!m_transformed_bounding_box.has_value()) {
|
|
const BoundingBoxf3& box = bounding_box();
|
|
assert(box.defined || box.min.x() >= box.max.x() || box.min.y() >= box.max.y() || box.min.z() >= box.max.z());
|
|
std::optional<BoundingBoxf3>* trans_box = const_cast<std::optional<BoundingBoxf3>*>(&m_transformed_bounding_box);
|
|
*trans_box = box.transformed(world_matrix());
|
|
}
|
|
return *m_transformed_bounding_box;
|
|
}
|
|
|
|
const BoundingBoxf3& GLVolume::transformed_convex_hull_bounding_box() const
|
|
{
|
|
if (!m_transformed_convex_hull_bounding_box.has_value()) {
|
|
std::optional<BoundingBoxf3>* trans_box = const_cast<std::optional<BoundingBoxf3>*>(&m_transformed_convex_hull_bounding_box);
|
|
*trans_box = transformed_convex_hull_bounding_box(world_matrix());
|
|
}
|
|
return *m_transformed_convex_hull_bounding_box;
|
|
}
|
|
|
|
BoundingBoxf3 GLVolume::transformed_convex_hull_bounding_box(const Transform3d &trafo) const
|
|
{
|
|
return (m_convex_hull && ! m_convex_hull->empty()) ?
|
|
m_convex_hull->transformed_bounding_box(trafo) :
|
|
bounding_box().transformed(trafo);
|
|
}
|
|
|
|
#if ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
BoundingBoxf3 GLVolume::transformed_non_sinking_bounding_box(const Transform3d& trafo) const
|
|
{
|
|
return GUI::wxGetApp().plater()->model().objects[object_idx()]->volumes[volume_idx()]->mesh().transformed_bounding_box(trafo, 0.0);
|
|
}
|
|
|
|
const BoundingBoxf3& GLVolume::transformed_non_sinking_bounding_box() const
|
|
{
|
|
if (!m_transformed_non_sinking_bounding_box.has_value()) {
|
|
std::optional<BoundingBoxf3>* trans_box = const_cast<std::optional<BoundingBoxf3>*>(&m_transformed_non_sinking_bounding_box);
|
|
const Transform3d& trafo = world_matrix();
|
|
*trans_box = transformed_non_sinking_bounding_box(trafo);
|
|
}
|
|
return *m_transformed_non_sinking_bounding_box;
|
|
}
|
|
#endif // ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
|
|
void GLVolume::set_range(double min_z, double max_z)
|
|
{
|
|
this->qverts_range.first = 0;
|
|
this->qverts_range.second = this->indexed_vertex_array.quad_indices_size;
|
|
this->tverts_range.first = 0;
|
|
this->tverts_range.second = this->indexed_vertex_array.triangle_indices_size;
|
|
if (! this->print_zs.empty()) {
|
|
// The Z layer range is specified.
|
|
// First test whether the Z span of this object is not out of (min_z, max_z) completely.
|
|
if (this->print_zs.front() > max_z || this->print_zs.back() < min_z) {
|
|
this->qverts_range.second = 0;
|
|
this->tverts_range.second = 0;
|
|
} else {
|
|
// Then find the lowest layer to be displayed.
|
|
size_t i = 0;
|
|
for (; i < this->print_zs.size() && this->print_zs[i] < min_z; ++ i);
|
|
if (i == this->print_zs.size()) {
|
|
// This shall not happen.
|
|
this->qverts_range.second = 0;
|
|
this->tverts_range.second = 0;
|
|
} else {
|
|
// Remember start of the layer.
|
|
this->qverts_range.first = this->offsets[i * 2];
|
|
this->tverts_range.first = this->offsets[i * 2 + 1];
|
|
// Some layers are above $min_z. Which?
|
|
for (; i < this->print_zs.size() && this->print_zs[i] <= max_z; ++ i);
|
|
if (i < this->print_zs.size()) {
|
|
this->qverts_range.second = this->offsets[i * 2];
|
|
this->tverts_range.second = this->offsets[i * 2 + 1];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void GLVolume::render() const
|
|
{
|
|
if (!is_active)
|
|
return;
|
|
|
|
if (this->is_left_handed())
|
|
glFrontFace(GL_CW);
|
|
glsafe(::glCullFace(GL_BACK));
|
|
glsafe(::glPushMatrix());
|
|
glsafe(::glMultMatrixd(world_matrix().data()));
|
|
|
|
this->indexed_vertex_array.render(this->tverts_range, this->qverts_range);
|
|
|
|
glsafe(::glPopMatrix());
|
|
if (this->is_left_handed())
|
|
glFrontFace(GL_CCW);
|
|
}
|
|
|
|
bool GLVolume::is_sla_support() const { return this->composite_id.volume_id == -int(slaposSupportTree); }
|
|
bool GLVolume::is_sla_pad() const { return this->composite_id.volume_id == -int(slaposPad); }
|
|
|
|
bool GLVolume::is_sinking() const
|
|
{
|
|
if (is_modifier || GUI::wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA)
|
|
return false;
|
|
const BoundingBoxf3& box = transformed_convex_hull_bounding_box();
|
|
return box.min.z() < SINKING_Z_THRESHOLD && box.max.z() >= SINKING_Z_THRESHOLD;
|
|
}
|
|
|
|
bool GLVolume::is_below_printbed() const
|
|
{
|
|
return transformed_convex_hull_bounding_box().max.z() < 0.0;
|
|
}
|
|
|
|
void GLVolume::render_sinking_contours()
|
|
{
|
|
m_sinking_contours.render();
|
|
}
|
|
|
|
std::vector<int> GLVolumeCollection::load_object(
|
|
const ModelObject *model_object,
|
|
int obj_idx,
|
|
const std::vector<int> &instance_idxs,
|
|
const std::string &color_by,
|
|
bool opengl_initialized)
|
|
{
|
|
std::vector<int> volumes_idx;
|
|
for (int volume_idx = 0; volume_idx < int(model_object->volumes.size()); ++volume_idx)
|
|
for (int instance_idx : instance_idxs)
|
|
volumes_idx.emplace_back(this->GLVolumeCollection::load_object_volume(model_object, obj_idx, volume_idx, instance_idx, color_by, opengl_initialized));
|
|
return volumes_idx;
|
|
}
|
|
|
|
int GLVolumeCollection::load_object_volume(
|
|
const ModelObject *model_object,
|
|
int obj_idx,
|
|
int volume_idx,
|
|
int instance_idx,
|
|
const std::string &color_by,
|
|
bool opengl_initialized)
|
|
{
|
|
const ModelVolume *model_volume = model_object->volumes[volume_idx];
|
|
const int extruder_id = model_volume->extruder_id();
|
|
const ModelInstance *instance = model_object->instances[instance_idx];
|
|
const TriangleMesh &mesh = model_volume->mesh();
|
|
std::array<float, 4> color = GLVolume::MODEL_COLOR[((color_by == "volume") ? volume_idx : obj_idx) % 4];
|
|
color[3] = model_volume->is_model_part() ? 1.f : 0.5f;
|
|
this->volumes.emplace_back(new GLVolume(color));
|
|
GLVolume& v = *this->volumes.back();
|
|
v.set_color(color_from_model_volume(*model_volume));
|
|
#if ENABLE_SMOOTH_NORMALS
|
|
v.indexed_vertex_array.load_mesh(mesh, true);
|
|
#else
|
|
v.indexed_vertex_array.load_mesh(mesh);
|
|
#endif // ENABLE_SMOOTH_NORMALS
|
|
v.indexed_vertex_array.finalize_geometry(opengl_initialized);
|
|
v.composite_id = GLVolume::CompositeID(obj_idx, volume_idx, instance_idx);
|
|
if (model_volume->is_model_part())
|
|
{
|
|
// GLVolume will reference a convex hull from model_volume!
|
|
v.set_convex_hull(model_volume->get_convex_hull_shared_ptr());
|
|
if (extruder_id != -1)
|
|
v.extruder_id = extruder_id;
|
|
}
|
|
v.is_modifier = !model_volume->is_model_part();
|
|
v.shader_outside_printer_detection_enabled = model_volume->is_model_part();
|
|
v.set_instance_transformation(instance->get_transformation());
|
|
v.set_volume_transformation(model_volume->get_transformation());
|
|
|
|
return int(this->volumes.size() - 1);
|
|
}
|
|
|
|
// Load SLA auxiliary GLVolumes (for support trees or pad).
|
|
// This function produces volumes for multiple instances in a single shot,
|
|
// as some object specific mesh conversions may be expensive.
|
|
void GLVolumeCollection::load_object_auxiliary(
|
|
const SLAPrintObject *print_object,
|
|
int obj_idx,
|
|
// pairs of <instance_idx, print_instance_idx>
|
|
const std::vector<std::pair<size_t, size_t>>& instances,
|
|
SLAPrintObjectStep milestone,
|
|
// Timestamp of the last change of the milestone
|
|
size_t timestamp,
|
|
bool opengl_initialized)
|
|
{
|
|
assert(print_object->is_step_done(milestone));
|
|
Transform3d mesh_trafo_inv = print_object->trafo().inverse();
|
|
// Get the support mesh.
|
|
TriangleMesh mesh = print_object->get_mesh(milestone);
|
|
mesh.transform(mesh_trafo_inv);
|
|
// Convex hull is required for out of print bed detection.
|
|
TriangleMesh convex_hull = mesh.convex_hull_3d();
|
|
for (const std::pair<size_t, size_t>& instance_idx : instances) {
|
|
const ModelInstance& model_instance = *print_object->model_object()->instances[instance_idx.first];
|
|
this->volumes.emplace_back(new GLVolume((milestone == slaposPad) ? GLVolume::SLA_PAD_COLOR : GLVolume::SLA_SUPPORT_COLOR));
|
|
GLVolume& v = *this->volumes.back();
|
|
#if ENABLE_SMOOTH_NORMALS
|
|
v.indexed_vertex_array.load_mesh(mesh, true);
|
|
#else
|
|
v.indexed_vertex_array.load_mesh(mesh);
|
|
#endif // ENABLE_SMOOTH_NORMALS
|
|
v.indexed_vertex_array.finalize_geometry(opengl_initialized);
|
|
v.composite_id = GLVolume::CompositeID(obj_idx, -int(milestone), (int)instance_idx.first);
|
|
v.geometry_id = std::pair<size_t, size_t>(timestamp, model_instance.id().id);
|
|
// Create a copy of the convex hull mesh for each instance. Use a move operator on the last instance.
|
|
if (&instance_idx == &instances.back())
|
|
v.set_convex_hull(std::move(convex_hull));
|
|
else
|
|
v.set_convex_hull(convex_hull);
|
|
v.is_modifier = false;
|
|
v.shader_outside_printer_detection_enabled = (milestone == slaposSupportTree);
|
|
v.set_instance_transformation(model_instance.get_transformation());
|
|
// Leave the volume transformation at identity.
|
|
// v.set_volume_transformation(model_volume->get_transformation());
|
|
}
|
|
}
|
|
|
|
int GLVolumeCollection::load_wipe_tower_preview(
|
|
int obj_idx, float pos_x, float pos_y, float width, float depth, float height,
|
|
float rotation_angle, bool size_unknown, float brim_width, bool opengl_initialized)
|
|
{
|
|
if (depth < 0.01f)
|
|
return int(this->volumes.size() - 1);
|
|
if (height == 0.0f)
|
|
height = 0.1f;
|
|
|
|
TriangleMesh mesh;
|
|
std::array<float, 4> color = { 0.5f, 0.5f, 0.0f, 1.0f };
|
|
|
|
// In case we don't know precise dimensions of the wipe tower yet, we'll draw
|
|
// the box with different color with one side jagged:
|
|
if (size_unknown) {
|
|
color[0] = 0.9f;
|
|
color[1] = 0.6f;
|
|
|
|
// Too narrow tower would interfere with the teeth. The estimate is not precise anyway.
|
|
depth = std::max(depth, 10.f);
|
|
float min_width = 30.f;
|
|
// We'll now create the box with jagged edge. y-coordinates of the pre-generated model
|
|
// are shifted so that the front edge has y=0 and centerline of the back edge has y=depth:
|
|
float out_points_idx[][3] = { { 0, -depth, 0 }, { 0, 0, 0 }, { 38.453f, 0, 0 }, { 61.547f, 0, 0 }, { 100.0f, 0, 0 }, { 100.0f, -depth, 0 }, { 55.7735f, -10.0f, 0 }, { 44.2265f, 10.0f, 0 },
|
|
{ 38.453f, 0, 1 }, { 0, 0, 1 }, { 0, -depth, 1 }, { 100.0f, -depth, 1 }, { 100.0f, 0, 1 }, { 61.547f, 0, 1 }, { 55.7735f, -10.0f, 1 }, { 44.2265f, 10.0f, 1 } };
|
|
static constexpr const int out_facets_idx[][3] = {
|
|
{ 0, 1, 2 }, { 3, 4, 5 }, { 6, 5, 0 }, { 3, 5, 6 }, { 6, 2, 7 }, { 6, 0, 2 }, { 8, 9, 10 }, { 11, 12, 13 }, { 10, 11, 14 }, { 14, 11, 13 }, { 15, 8, 14 },
|
|
{ 8, 10, 14 }, { 3, 12, 4 }, { 3, 13, 12 }, { 6, 13, 3 }, { 6, 14, 13 }, { 7, 14, 6 }, { 7, 15, 14 }, { 2, 15, 7 }, { 2, 8, 15 }, { 1, 8, 2 }, { 1, 9, 8 },
|
|
{ 0, 9, 1 }, { 0, 10, 9 }, { 5, 10, 0 }, { 5, 11, 10 }, { 4, 11, 5 }, { 4, 12, 11 } };
|
|
indexed_triangle_set its;
|
|
for (int i = 0; i < 16; ++i)
|
|
its.vertices.emplace_back(out_points_idx[i][0] / (100.f / min_width),
|
|
out_points_idx[i][1] + depth, out_points_idx[i][2]);
|
|
its.indices.reserve(28);
|
|
for (const int *face : out_facets_idx)
|
|
its.indices.emplace_back(face);
|
|
TriangleMesh tooth_mesh(std::move(its));
|
|
|
|
// We have the mesh ready. It has one tooth and width of min_width. We will now
|
|
// append several of these together until we are close to the required width
|
|
// of the block. Than we can scale it precisely.
|
|
size_t n = std::max(1, int(width / min_width)); // How many shall be merged?
|
|
for (size_t i = 0; i < n; ++i) {
|
|
mesh.merge(tooth_mesh);
|
|
tooth_mesh.translate(min_width, 0.f, 0.f);
|
|
}
|
|
|
|
mesh.scale(Vec3f(width / (n * min_width), 1.f, height)); // Scaling to proper width
|
|
}
|
|
else
|
|
mesh = make_cube(width, depth, height);
|
|
|
|
// We'll make another mesh to show the brim (fixed layer height):
|
|
TriangleMesh brim_mesh = make_cube(width + 2.f * brim_width, depth + 2.f * brim_width, 0.2f);
|
|
brim_mesh.translate(-brim_width, -brim_width, 0.f);
|
|
mesh.merge(brim_mesh);
|
|
|
|
volumes.emplace_back(new GLVolume(color));
|
|
GLVolume& v = *volumes.back();
|
|
v.indexed_vertex_array.load_mesh(mesh);
|
|
#if ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
v.set_convex_hull(mesh.convex_hull_3d());
|
|
#endif // ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
v.indexed_vertex_array.finalize_geometry(opengl_initialized);
|
|
v.set_volume_offset(Vec3d(pos_x, pos_y, 0.0));
|
|
v.set_volume_rotation(Vec3d(0., 0., (M_PI / 180.) * rotation_angle));
|
|
v.composite_id = GLVolume::CompositeID(obj_idx, 0, 0);
|
|
v.geometry_id.first = 0;
|
|
v.geometry_id.second = wipe_tower_instance_id().id;
|
|
v.is_wipe_tower = true;
|
|
v.shader_outside_printer_detection_enabled = !size_unknown;
|
|
return int(volumes.size() - 1);
|
|
}
|
|
|
|
GLVolume* GLVolumeCollection::new_toolpath_volume(const std::array<float, 4>& rgba, size_t reserve_vbo_floats)
|
|
{
|
|
GLVolume *out = new_nontoolpath_volume(rgba, reserve_vbo_floats);
|
|
out->is_extrusion_path = true;
|
|
return out;
|
|
}
|
|
|
|
GLVolume* GLVolumeCollection::new_nontoolpath_volume(const std::array<float, 4>& rgba, size_t reserve_vbo_floats)
|
|
{
|
|
GLVolume *out = new GLVolume(rgba);
|
|
out->is_extrusion_path = false;
|
|
// Reserving number of vertices (3x position + 3x color)
|
|
out->indexed_vertex_array.reserve(reserve_vbo_floats / 6);
|
|
this->volumes.emplace_back(out);
|
|
return out;
|
|
}
|
|
|
|
GLVolumeWithIdAndZList volumes_to_render(const GLVolumePtrs& volumes, GLVolumeCollection::ERenderType type, const Transform3d& view_matrix, std::function<bool(const GLVolume&)> filter_func)
|
|
{
|
|
GLVolumeWithIdAndZList list;
|
|
list.reserve(volumes.size());
|
|
|
|
for (unsigned int i = 0; i < (unsigned int)volumes.size(); ++i) {
|
|
GLVolume* volume = volumes[i];
|
|
bool is_transparent = (volume->render_color[3] < 1.0f);
|
|
if (((type == GLVolumeCollection::ERenderType::Opaque && !is_transparent) ||
|
|
(type == GLVolumeCollection::ERenderType::Transparent && is_transparent) ||
|
|
type == GLVolumeCollection::ERenderType::All) &&
|
|
(! filter_func || filter_func(*volume)))
|
|
list.emplace_back(std::make_pair(volume, std::make_pair(i, 0.0)));
|
|
}
|
|
|
|
if (type == GLVolumeCollection::ERenderType::Transparent && list.size() > 1) {
|
|
for (GLVolumeWithIdAndZ& volume : list) {
|
|
volume.second.second = volume.first->bounding_box().transformed(view_matrix * volume.first->world_matrix()).max(2);
|
|
}
|
|
|
|
std::sort(list.begin(), list.end(),
|
|
[](const GLVolumeWithIdAndZ& v1, const GLVolumeWithIdAndZ& v2) -> bool { return v1.second.second < v2.second.second; }
|
|
);
|
|
}
|
|
else if (type == GLVolumeCollection::ERenderType::Opaque && list.size() > 1) {
|
|
std::sort(list.begin(), list.end(),
|
|
[](const GLVolumeWithIdAndZ& v1, const GLVolumeWithIdAndZ& v2) -> bool { return v1.first->selected && !v2.first->selected; }
|
|
);
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
void GLVolumeCollection::render(GLVolumeCollection::ERenderType type, bool disable_cullface, const Transform3d& view_matrix, std::function<bool(const GLVolume&)> filter_func) const
|
|
{
|
|
GLVolumeWithIdAndZList to_render = volumes_to_render(volumes, type, view_matrix, filter_func);
|
|
if (to_render.empty())
|
|
return;
|
|
|
|
GLShaderProgram* shader = GUI::wxGetApp().get_current_shader();
|
|
if (shader == nullptr)
|
|
return;
|
|
|
|
if (type == ERenderType::Transparent) {
|
|
glsafe(::glEnable(GL_BLEND));
|
|
glsafe(::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA));
|
|
}
|
|
|
|
glsafe(::glCullFace(GL_BACK));
|
|
if (disable_cullface)
|
|
glsafe(::glDisable(GL_CULL_FACE));
|
|
|
|
for (GLVolumeWithIdAndZ& volume : to_render) {
|
|
#if ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
if (type == ERenderType::Transparent)
|
|
volume.first->force_transparent = true;
|
|
#endif // ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
volume.first->set_render_color();
|
|
#if ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
if (type == ERenderType::Transparent)
|
|
volume.first->force_transparent = false;
|
|
#endif // ENABLE_MODIFIERS_ALWAYS_TRANSPARENT
|
|
|
|
// render sinking contours of non-hovered volumes
|
|
if (m_show_sinking_contours)
|
|
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
|
|
volume.first->hover == GLVolume::HS_None && !volume.first->force_sinking_contours) {
|
|
shader->stop_using();
|
|
volume.first->render_sinking_contours();
|
|
shader->start_using();
|
|
}
|
|
|
|
glsafe(::glEnableClientState(GL_VERTEX_ARRAY));
|
|
glsafe(::glEnableClientState(GL_NORMAL_ARRAY));
|
|
|
|
shader->set_uniform("uniform_color", volume.first->render_color);
|
|
shader->set_uniform("z_range", m_z_range, 2);
|
|
shader->set_uniform("clipping_plane", m_clipping_plane, 4);
|
|
#if ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
shader->set_uniform("print_volume.type", static_cast<int>(m_print_volume.type));
|
|
shader->set_uniform("print_volume.xy_data", m_print_volume.data);
|
|
shader->set_uniform("print_volume.z_data", m_print_volume.zs);
|
|
shader->set_uniform("volume_world_matrix", volume.first->world_matrix());
|
|
#else
|
|
shader->set_uniform("print_box.min", m_print_box_min, 3);
|
|
shader->set_uniform("print_box.max", m_print_box_max, 3);
|
|
shader->set_uniform("print_box.actived", volume.first->shader_outside_printer_detection_enabled);
|
|
shader->set_uniform("print_box.volume_world_matrix", volume.first->world_matrix());
|
|
#endif // ENABLE_OUT_OF_BED_DETECTION_IMPROVEMENTS
|
|
shader->set_uniform("slope.actived", m_slope.active && !volume.first->is_modifier && !volume.first->is_wipe_tower);
|
|
shader->set_uniform("slope.volume_world_normal_matrix", static_cast<Matrix3f>(volume.first->world_matrix().matrix().block(0, 0, 3, 3).inverse().transpose().cast<float>()));
|
|
shader->set_uniform("slope.normal_z", m_slope.normal_z);
|
|
|
|
#if ENABLE_ENVIRONMENT_MAP
|
|
unsigned int environment_texture_id = GUI::wxGetApp().plater()->get_environment_texture_id();
|
|
bool use_environment_texture = environment_texture_id > 0 && GUI::wxGetApp().app_config->get("use_environment_map") == "1";
|
|
shader->set_uniform("use_environment_tex", use_environment_texture);
|
|
if (use_environment_texture)
|
|
glsafe(::glBindTexture(GL_TEXTURE_2D, environment_texture_id));
|
|
#endif // ENABLE_ENVIRONMENT_MAP
|
|
glcheck();
|
|
|
|
volume.first->render();
|
|
|
|
#if ENABLE_ENVIRONMENT_MAP
|
|
if (use_environment_texture)
|
|
glsafe(::glBindTexture(GL_TEXTURE_2D, 0));
|
|
#endif // ENABLE_ENVIRONMENT_MAP
|
|
|
|
glsafe(::glBindBuffer(GL_ARRAY_BUFFER, 0));
|
|
glsafe(::glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0));
|
|
|
|
glsafe(::glDisableClientState(GL_VERTEX_ARRAY));
|
|
glsafe(::glDisableClientState(GL_NORMAL_ARRAY));
|
|
}
|
|
|
|
if (m_show_sinking_contours) {
|
|
for (GLVolumeWithIdAndZ& volume : to_render) {
|
|
// render sinking contours of hovered/displaced volumes
|
|
if (volume.first->is_sinking() && !volume.first->is_below_printbed() &&
|
|
(volume.first->hover != GLVolume::HS_None || volume.first->force_sinking_contours)) {
|
|
shader->stop_using();
|
|
glsafe(::glDepthFunc(GL_ALWAYS));
|
|
volume.first->render_sinking_contours();
|
|
glsafe(::glDepthFunc(GL_LESS));
|
|
shader->start_using();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (disable_cullface)
|
|
glsafe(::glEnable(GL_CULL_FACE));
|
|
|
|
if (type == ERenderType::Transparent)
|
|
glsafe(::glDisable(GL_BLEND));
|
|
}
|
|
|
|
bool GLVolumeCollection::check_outside_state(const BuildVolume &build_volume, ModelInstanceEPrintVolumeState *out_state) const
|
|
{
|
|
const Model& model = GUI::wxGetApp().plater()->model();
|
|
// Volume is partially below the print bed, thus a pre-calculated convex hull cannot be used.
|
|
auto volume_sinking = [](GLVolume& volume) -> bool
|
|
{ return volume.is_sinking() && volume.object_idx() != -1 && volume.volume_idx() != -1; };
|
|
// Cached bounding box of a volume above the print bed.
|
|
auto volume_bbox = [volume_sinking](GLVolume& volume) -> BoundingBoxf3
|
|
{ return volume_sinking(volume) ? volume.transformed_non_sinking_bounding_box() : volume.transformed_convex_hull_bounding_box(); };
|
|
// Cached 3D convex hull of a volume above the print bed.
|
|
auto volume_convex_mesh = [volume_sinking, &model](GLVolume& volume) -> const TriangleMesh&
|
|
{ return volume_sinking(volume) ? model.objects[volume.object_idx()]->volumes[volume.volume_idx()]->mesh() : *volume.convex_hull(); };
|
|
|
|
ModelInstanceEPrintVolumeState overall_state = ModelInstancePVS_Inside;
|
|
bool contained_min_one = false;
|
|
|
|
for (GLVolume* volume : this->volumes)
|
|
if (! volume->is_modifier && (volume->shader_outside_printer_detection_enabled || (! volume->is_wipe_tower && volume->composite_id.volume_id >= 0))) {
|
|
BuildVolume::ObjectState state;
|
|
switch (build_volume.type()) {
|
|
case BuildVolume::Type::Rectangle:
|
|
//FIXME this test does not evaluate collision of a build volume bounding box with non-convex objects.
|
|
state = build_volume.volume_state_bbox(volume_bbox(*volume));
|
|
break;
|
|
case BuildVolume::Type::Circle:
|
|
case BuildVolume::Type::Convex:
|
|
//FIXME doing test on convex hull until we learn to do test on non-convex polygons efficiently.
|
|
case BuildVolume::Type::Custom:
|
|
state = build_volume.object_state(volume_convex_mesh(*volume).its, volume->world_matrix().cast<float>(), volume_sinking(*volume));
|
|
break;
|
|
default:
|
|
// Ignore, don't produce any collision.
|
|
state = BuildVolume::ObjectState::Inside;
|
|
break;
|
|
}
|
|
volume->is_outside = state != BuildVolume::ObjectState::Inside;
|
|
if (volume->printable) {
|
|
if (overall_state == ModelInstancePVS_Inside && volume->is_outside)
|
|
overall_state = ModelInstancePVS_Fully_Outside;
|
|
if (overall_state == ModelInstancePVS_Fully_Outside && volume->is_outside && state == BuildVolume::ObjectState::Colliding)
|
|
overall_state = ModelInstancePVS_Partly_Outside;
|
|
contained_min_one |= !volume->is_outside;
|
|
}
|
|
}
|
|
|
|
if (out_state != nullptr)
|
|
*out_state = overall_state;
|
|
|
|
return contained_min_one;
|
|
}
|
|
|
|
void GLVolumeCollection::reset_outside_state()
|
|
{
|
|
for (GLVolume* volume : this->volumes)
|
|
{
|
|
if (volume != nullptr)
|
|
volume->is_outside = false;
|
|
}
|
|
}
|
|
|
|
void GLVolumeCollection::update_colors_by_extruder(const DynamicPrintConfig* config)
|
|
{
|
|
static const float inv_255 = 1.0f / 255.0f;
|
|
|
|
struct Color
|
|
{
|
|
std::string text;
|
|
unsigned char rgb[3];
|
|
|
|
Color()
|
|
: text("")
|
|
{
|
|
rgb[0] = 255;
|
|
rgb[1] = 255;
|
|
rgb[2] = 255;
|
|
}
|
|
|
|
void set(const std::string& text, unsigned char* rgb)
|
|
{
|
|
this->text = text;
|
|
::memcpy((void*)this->rgb, (const void*)rgb, 3 * sizeof(unsigned char));
|
|
}
|
|
};
|
|
|
|
if (config == nullptr)
|
|
return;
|
|
|
|
unsigned char rgb[3];
|
|
std::vector<Color> colors;
|
|
|
|
if (static_cast<PrinterTechnology>(config->opt_int("printer_technology")) == ptSLA)
|
|
{
|
|
const std::string& txt_color = config->opt_string("material_colour");
|
|
if (Slic3r::GUI::BitmapCache::parse_color(txt_color, rgb)) {
|
|
colors.resize(1);
|
|
colors[0].set(txt_color, rgb);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
const ConfigOptionStrings* extruders_opt = dynamic_cast<const ConfigOptionStrings*>(config->option("extruder_colour"));
|
|
if (extruders_opt == nullptr)
|
|
return;
|
|
|
|
const ConfigOptionStrings* filamemts_opt = dynamic_cast<const ConfigOptionStrings*>(config->option("filament_colour"));
|
|
if (filamemts_opt == nullptr)
|
|
return;
|
|
|
|
unsigned int colors_count = std::max((unsigned int)extruders_opt->values.size(), (unsigned int)filamemts_opt->values.size());
|
|
if (colors_count == 0)
|
|
return;
|
|
colors.resize(colors_count);
|
|
|
|
for (unsigned int i = 0; i < colors_count; ++i) {
|
|
const std::string& txt_color = config->opt_string("extruder_colour", i);
|
|
if (Slic3r::GUI::BitmapCache::parse_color(txt_color, rgb))
|
|
colors[i].set(txt_color, rgb);
|
|
else {
|
|
const std::string& txt_color = config->opt_string("filament_colour", i);
|
|
if (Slic3r::GUI::BitmapCache::parse_color(txt_color, rgb))
|
|
colors[i].set(txt_color, rgb);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (GLVolume* volume : volumes) {
|
|
if (volume == nullptr || volume->is_modifier || volume->is_wipe_tower || (volume->volume_idx() < 0))
|
|
continue;
|
|
|
|
int extruder_id = volume->extruder_id - 1;
|
|
if (extruder_id < 0 || (int)colors.size() <= extruder_id)
|
|
extruder_id = 0;
|
|
|
|
const Color& color = colors[extruder_id];
|
|
if (!color.text.empty()) {
|
|
for (int i = 0; i < 3; ++i) {
|
|
volume->color[i] = (float)color.rgb[i] * inv_255;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
std::vector<double> GLVolumeCollection::get_current_print_zs(bool active_only) const
|
|
{
|
|
// Collect layer top positions of all volumes.
|
|
std::vector<double> print_zs;
|
|
for (GLVolume *vol : this->volumes)
|
|
{
|
|
if (!active_only || vol->is_active)
|
|
append(print_zs, vol->print_zs);
|
|
}
|
|
std::sort(print_zs.begin(), print_zs.end());
|
|
|
|
// Replace intervals of layers with similar top positions with their average value.
|
|
int n = int(print_zs.size());
|
|
int k = 0;
|
|
for (int i = 0; i < n;) {
|
|
int j = i + 1;
|
|
coordf_t zmax = print_zs[i] + EPSILON;
|
|
for (; j < n && print_zs[j] <= zmax; ++ j) ;
|
|
print_zs[k ++] = (j > i + 1) ? (0.5 * (print_zs[i] + print_zs[j - 1])) : print_zs[i];
|
|
i = j;
|
|
}
|
|
if (k < n)
|
|
print_zs.erase(print_zs.begin() + k, print_zs.end());
|
|
|
|
return print_zs;
|
|
}
|
|
|
|
size_t GLVolumeCollection::cpu_memory_used() const
|
|
{
|
|
size_t memsize = sizeof(*this) + this->volumes.capacity() * sizeof(GLVolume);
|
|
for (const GLVolume *volume : this->volumes)
|
|
memsize += volume->cpu_memory_used();
|
|
return memsize;
|
|
}
|
|
|
|
size_t GLVolumeCollection::gpu_memory_used() const
|
|
{
|
|
size_t memsize = 0;
|
|
for (const GLVolume *volume : this->volumes)
|
|
memsize += volume->gpu_memory_used();
|
|
return memsize;
|
|
}
|
|
|
|
std::string GLVolumeCollection::log_memory_info() const
|
|
{
|
|
return " (GLVolumeCollection RAM: " + format_memsize_MB(this->cpu_memory_used()) + " GPU: " + format_memsize_MB(this->gpu_memory_used()) + " Both: " + format_memsize_MB(this->gpu_memory_used()) + ")";
|
|
}
|
|
|
|
// caller is responsible for supplying NO lines with zero length
|
|
static void thick_lines_to_indexed_vertex_array(
|
|
const Lines &lines,
|
|
const std::vector<double> &widths,
|
|
const std::vector<double> &heights,
|
|
bool closed,
|
|
double top_z,
|
|
GLIndexedVertexArray &volume)
|
|
{
|
|
assert(! lines.empty());
|
|
if (lines.empty())
|
|
return;
|
|
|
|
#define LEFT 0
|
|
#define RIGHT 1
|
|
#define TOP 2
|
|
#define BOTTOM 3
|
|
|
|
// right, left, top, bottom
|
|
int idx_prev[4] = { -1, -1, -1, -1 };
|
|
double bottom_z_prev = 0.;
|
|
Vec2d b1_prev(Vec2d::Zero());
|
|
Vec2d v_prev(Vec2d::Zero());
|
|
int idx_initial[4] = { -1, -1, -1, -1 };
|
|
double width_initial = 0.;
|
|
double bottom_z_initial = 0.0;
|
|
double len_prev = 0.0;
|
|
|
|
// loop once more in case of closed loops
|
|
size_t lines_end = closed ? (lines.size() + 1) : lines.size();
|
|
for (size_t ii = 0; ii < lines_end; ++ ii) {
|
|
size_t i = (ii == lines.size()) ? 0 : ii;
|
|
const Line &line = lines[i];
|
|
double bottom_z = top_z - heights[i];
|
|
double middle_z = 0.5 * (top_z + bottom_z);
|
|
double width = widths[i];
|
|
|
|
bool is_first = (ii == 0);
|
|
bool is_last = (ii == lines_end - 1);
|
|
bool is_closing = closed && is_last;
|
|
|
|
Vec2d v = unscale(line.vector()).normalized();
|
|
double len = unscale<double>(line.length());
|
|
|
|
Vec2d a = unscale(line.a);
|
|
Vec2d b = unscale(line.b);
|
|
Vec2d a1 = a;
|
|
Vec2d a2 = a;
|
|
Vec2d b1 = b;
|
|
Vec2d b2 = b;
|
|
{
|
|
double dist = 0.5 * width; // scaled
|
|
double dx = dist * v(0);
|
|
double dy = dist * v(1);
|
|
a1 += Vec2d(+dy, -dx);
|
|
a2 += Vec2d(-dy, +dx);
|
|
b1 += Vec2d(+dy, -dx);
|
|
b2 += Vec2d(-dy, +dx);
|
|
}
|
|
|
|
// calculate new XY normals
|
|
Vec2d xy_right_normal = unscale(line.normal()).normalized();
|
|
|
|
int idx_a[4] = { 0, 0, 0, 0 }; // initialized to avoid warnings
|
|
int idx_b[4] = { 0, 0, 0, 0 }; // initialized to avoid warnings
|
|
int idx_last = int(volume.vertices_and_normals_interleaved.size() / 6);
|
|
|
|
bool bottom_z_different = bottom_z_prev != bottom_z;
|
|
bottom_z_prev = bottom_z;
|
|
|
|
if (!is_first && bottom_z_different)
|
|
{
|
|
// Found a change of the layer thickness -> Add a cap at the end of the previous segment.
|
|
volume.push_quad(idx_b[BOTTOM], idx_b[LEFT], idx_b[TOP], idx_b[RIGHT]);
|
|
}
|
|
|
|
// Share top / bottom vertices if possible.
|
|
if (is_first) {
|
|
idx_a[TOP] = idx_last++;
|
|
volume.push_geometry(a(0), a(1), top_z , 0., 0., 1.);
|
|
} else {
|
|
idx_a[TOP] = idx_prev[TOP];
|
|
}
|
|
|
|
if (is_first || bottom_z_different) {
|
|
// Start of the 1st line segment or a change of the layer thickness while maintaining the print_z.
|
|
idx_a[BOTTOM] = idx_last ++;
|
|
volume.push_geometry(a(0), a(1), bottom_z, 0., 0., -1.);
|
|
idx_a[LEFT ] = idx_last ++;
|
|
volume.push_geometry(a2(0), a2(1), middle_z, -xy_right_normal(0), -xy_right_normal(1), 0.0);
|
|
idx_a[RIGHT] = idx_last ++;
|
|
volume.push_geometry(a1(0), a1(1), middle_z, xy_right_normal(0), xy_right_normal(1), 0.0);
|
|
}
|
|
else {
|
|
idx_a[BOTTOM] = idx_prev[BOTTOM];
|
|
}
|
|
|
|
if (is_first) {
|
|
// Start of the 1st line segment.
|
|
width_initial = width;
|
|
bottom_z_initial = bottom_z;
|
|
memcpy(idx_initial, idx_a, sizeof(int) * 4);
|
|
} else {
|
|
// Continuing a previous segment.
|
|
// Share left / right vertices if possible.
|
|
double v_dot = v_prev.dot(v);
|
|
// To reduce gpu memory usage, we try to reuse vertices
|
|
// To reduce the visual artifacts, due to averaged normals, we allow to reuse vertices only when any of two adjacent edges
|
|
// is longer than a fixed threshold.
|
|
// The following value is arbitrary, it comes from tests made on a bunch of models showing the visual artifacts
|
|
double len_threshold = 2.5;
|
|
|
|
// Generate new vertices if the angle between adjacent edges is greater than 45 degrees or thresholds conditions are met
|
|
bool sharp = (v_dot < 0.707) || (len_prev > len_threshold) || (len > len_threshold);
|
|
if (sharp) {
|
|
if (!bottom_z_different)
|
|
{
|
|
// Allocate new left / right points for the start of this segment as these points will receive their own normals to indicate a sharp turn.
|
|
idx_a[RIGHT] = idx_last++;
|
|
volume.push_geometry(a1(0), a1(1), middle_z, xy_right_normal(0), xy_right_normal(1), 0.0);
|
|
idx_a[LEFT] = idx_last++;
|
|
volume.push_geometry(a2(0), a2(1), middle_z, -xy_right_normal(0), -xy_right_normal(1), 0.0);
|
|
if (cross2(v_prev, v) > 0.) {
|
|
// Right turn. Fill in the right turn wedge.
|
|
volume.push_triangle(idx_prev[RIGHT], idx_a[RIGHT], idx_prev[TOP]);
|
|
volume.push_triangle(idx_prev[RIGHT], idx_prev[BOTTOM], idx_a[RIGHT]);
|
|
}
|
|
else {
|
|
// Left turn. Fill in the left turn wedge.
|
|
volume.push_triangle(idx_prev[LEFT], idx_prev[TOP], idx_a[LEFT]);
|
|
volume.push_triangle(idx_prev[LEFT], idx_a[LEFT], idx_prev[BOTTOM]);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!bottom_z_different)
|
|
{
|
|
// The two successive segments are nearly collinear.
|
|
idx_a[LEFT ] = idx_prev[LEFT];
|
|
idx_a[RIGHT] = idx_prev[RIGHT];
|
|
}
|
|
}
|
|
if (is_closing) {
|
|
if (!sharp) {
|
|
if (!bottom_z_different)
|
|
{
|
|
// Closing a loop with smooth transition. Unify the closing left / right vertices.
|
|
memcpy(volume.vertices_and_normals_interleaved.data() + idx_initial[LEFT ] * 6, volume.vertices_and_normals_interleaved.data() + idx_prev[LEFT ] * 6, sizeof(float) * 6);
|
|
memcpy(volume.vertices_and_normals_interleaved.data() + idx_initial[RIGHT] * 6, volume.vertices_and_normals_interleaved.data() + idx_prev[RIGHT] * 6, sizeof(float) * 6);
|
|
volume.vertices_and_normals_interleaved.erase(volume.vertices_and_normals_interleaved.end() - 12, volume.vertices_and_normals_interleaved.end());
|
|
// Replace the left / right vertex indices to point to the start of the loop.
|
|
for (size_t u = volume.quad_indices.size() - 16; u < volume.quad_indices.size(); ++ u) {
|
|
if (volume.quad_indices[u] == idx_prev[LEFT])
|
|
volume.quad_indices[u] = idx_initial[LEFT];
|
|
else if (volume.quad_indices[u] == idx_prev[RIGHT])
|
|
volume.quad_indices[u] = idx_initial[RIGHT];
|
|
}
|
|
}
|
|
}
|
|
// This is the last iteration, only required to solve the transition.
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Only new allocate top / bottom vertices, if not closing a loop.
|
|
if (is_closing) {
|
|
idx_b[TOP] = idx_initial[TOP];
|
|
} else {
|
|
idx_b[TOP] = idx_last ++;
|
|
volume.push_geometry(b(0), b(1), top_z , 0., 0., 1.);
|
|
}
|
|
|
|
if (is_closing && (width == width_initial) && (bottom_z == bottom_z_initial)) {
|
|
idx_b[BOTTOM] = idx_initial[BOTTOM];
|
|
} else {
|
|
idx_b[BOTTOM] = idx_last ++;
|
|
volume.push_geometry(b(0), b(1), bottom_z, 0., 0., -1.);
|
|
}
|
|
// Generate new vertices for the end of this line segment.
|
|
idx_b[LEFT ] = idx_last ++;
|
|
volume.push_geometry(b2(0), b2(1), middle_z, -xy_right_normal(0), -xy_right_normal(1), 0.0);
|
|
idx_b[RIGHT ] = idx_last ++;
|
|
volume.push_geometry(b1(0), b1(1), middle_z, xy_right_normal(0), xy_right_normal(1), 0.0);
|
|
|
|
memcpy(idx_prev, idx_b, 4 * sizeof(int));
|
|
bottom_z_prev = bottom_z;
|
|
b1_prev = b1;
|
|
v_prev = v;
|
|
len_prev = len;
|
|
|
|
if (bottom_z_different && (closed || (!is_first && !is_last)))
|
|
{
|
|
// Found a change of the layer thickness -> Add a cap at the beginning of this segment.
|
|
volume.push_quad(idx_a[BOTTOM], idx_a[RIGHT], idx_a[TOP], idx_a[LEFT]);
|
|
}
|
|
|
|
if (! closed) {
|
|
// Terminate open paths with caps.
|
|
if (is_first)
|
|
volume.push_quad(idx_a[BOTTOM], idx_a[RIGHT], idx_a[TOP], idx_a[LEFT]);
|
|
// We don't use 'else' because both cases are true if we have only one line.
|
|
if (is_last)
|
|
volume.push_quad(idx_b[BOTTOM], idx_b[LEFT], idx_b[TOP], idx_b[RIGHT]);
|
|
}
|
|
|
|
// Add quads for a straight hollow tube-like segment.
|
|
// bottom-right face
|
|
volume.push_quad(idx_a[BOTTOM], idx_b[BOTTOM], idx_b[RIGHT], idx_a[RIGHT]);
|
|
// top-right face
|
|
volume.push_quad(idx_a[RIGHT], idx_b[RIGHT], idx_b[TOP], idx_a[TOP]);
|
|
// top-left face
|
|
volume.push_quad(idx_a[TOP], idx_b[TOP], idx_b[LEFT], idx_a[LEFT]);
|
|
// bottom-left face
|
|
volume.push_quad(idx_a[LEFT], idx_b[LEFT], idx_b[BOTTOM], idx_a[BOTTOM]);
|
|
}
|
|
|
|
#undef LEFT
|
|
#undef RIGHT
|
|
#undef TOP
|
|
#undef BOTTOM
|
|
}
|
|
|
|
// caller is responsible for supplying NO lines with zero length
|
|
static void thick_lines_to_indexed_vertex_array(const Lines3& lines,
|
|
const std::vector<double>& widths,
|
|
const std::vector<double>& heights,
|
|
bool closed,
|
|
GLIndexedVertexArray& volume)
|
|
{
|
|
assert(!lines.empty());
|
|
if (lines.empty())
|
|
return;
|
|
|
|
#define LEFT 0
|
|
#define RIGHT 1
|
|
#define TOP 2
|
|
#define BOTTOM 3
|
|
|
|
// left, right, top, bottom
|
|
int idx_initial[4] = { -1, -1, -1, -1 };
|
|
int idx_prev[4] = { -1, -1, -1, -1 };
|
|
double z_prev = 0.0;
|
|
double len_prev = 0.0;
|
|
Vec3d n_right_prev = Vec3d::Zero();
|
|
Vec3d n_top_prev = Vec3d::Zero();
|
|
Vec3d unit_v_prev = Vec3d::Zero();
|
|
double width_initial = 0.0;
|
|
|
|
// new vertices around the line endpoints
|
|
// left, right, top, bottom
|
|
Vec3d a[4] = { Vec3d::Zero(), Vec3d::Zero(), Vec3d::Zero(), Vec3d::Zero() };
|
|
Vec3d b[4] = { Vec3d::Zero(), Vec3d::Zero(), Vec3d::Zero(), Vec3d::Zero() };
|
|
|
|
// loop once more in case of closed loops
|
|
size_t lines_end = closed ? (lines.size() + 1) : lines.size();
|
|
for (size_t ii = 0; ii < lines_end; ++ii)
|
|
{
|
|
size_t i = (ii == lines.size()) ? 0 : ii;
|
|
|
|
const Line3& line = lines[i];
|
|
double height = heights[i];
|
|
double width = widths[i];
|
|
|
|
Vec3d unit_v = unscale(line.vector()).normalized();
|
|
double len = unscale<double>(line.length());
|
|
|
|
Vec3d n_top = Vec3d::Zero();
|
|
Vec3d n_right = Vec3d::Zero();
|
|
|
|
if ((line.a(0) == line.b(0)) && (line.a(1) == line.b(1)))
|
|
{
|
|
// vertical segment
|
|
n_top = Vec3d::UnitY();
|
|
n_right = Vec3d::UnitX();
|
|
if (line.a(2) < line.b(2))
|
|
n_right = -n_right;
|
|
}
|
|
else
|
|
{
|
|
// horizontal segment
|
|
n_right = unit_v.cross(Vec3d::UnitZ()).normalized();
|
|
n_top = n_right.cross(unit_v).normalized();
|
|
}
|
|
|
|
Vec3d rl_displacement = 0.5 * width * n_right;
|
|
Vec3d tb_displacement = 0.5 * height * n_top;
|
|
Vec3d l_a = unscale(line.a);
|
|
Vec3d l_b = unscale(line.b);
|
|
|
|
a[RIGHT] = l_a + rl_displacement;
|
|
a[LEFT] = l_a - rl_displacement;
|
|
a[TOP] = l_a + tb_displacement;
|
|
a[BOTTOM] = l_a - tb_displacement;
|
|
b[RIGHT] = l_b + rl_displacement;
|
|
b[LEFT] = l_b - rl_displacement;
|
|
b[TOP] = l_b + tb_displacement;
|
|
b[BOTTOM] = l_b - tb_displacement;
|
|
|
|
Vec3d n_bottom = -n_top;
|
|
Vec3d n_left = -n_right;
|
|
|
|
int idx_a[4];
|
|
int idx_b[4];
|
|
int idx_last = int(volume.vertices_and_normals_interleaved.size() / 6);
|
|
|
|
bool z_different = (z_prev != l_a(2));
|
|
z_prev = l_b(2);
|
|
|
|
// Share top / bottom vertices if possible.
|
|
if (ii == 0)
|
|
{
|
|
idx_a[TOP] = idx_last++;
|
|
volume.push_geometry(a[TOP], n_top);
|
|
}
|
|
else
|
|
idx_a[TOP] = idx_prev[TOP];
|
|
|
|
if ((ii == 0) || z_different)
|
|
{
|
|
// Start of the 1st line segment or a change of the layer thickness while maintaining the print_z.
|
|
idx_a[BOTTOM] = idx_last++;
|
|
volume.push_geometry(a[BOTTOM], n_bottom);
|
|
idx_a[LEFT] = idx_last++;
|
|
volume.push_geometry(a[LEFT], n_left);
|
|
idx_a[RIGHT] = idx_last++;
|
|
volume.push_geometry(a[RIGHT], n_right);
|
|
}
|
|
else
|
|
idx_a[BOTTOM] = idx_prev[BOTTOM];
|
|
|
|
if (ii == 0)
|
|
{
|
|
// Start of the 1st line segment.
|
|
width_initial = width;
|
|
::memcpy(idx_initial, idx_a, sizeof(int) * 4);
|
|
}
|
|
else
|
|
{
|
|
// Continuing a previous segment.
|
|
// Share left / right vertices if possible.
|
|
double v_dot = unit_v_prev.dot(unit_v);
|
|
bool is_right_turn = n_top_prev.dot(unit_v_prev.cross(unit_v)) > 0.0;
|
|
|
|
// To reduce gpu memory usage, we try to reuse vertices
|
|
// To reduce the visual artifacts, due to averaged normals, we allow to reuse vertices only when any of two adjacent edges
|
|
// is longer than a fixed threshold.
|
|
// The following value is arbitrary, it comes from tests made on a bunch of models showing the visual artifacts
|
|
double len_threshold = 2.5;
|
|
|
|
// Generate new vertices if the angle between adjacent edges is greater than 45 degrees or thresholds conditions are met
|
|
bool is_sharp = (v_dot < 0.707) || (len_prev > len_threshold) || (len > len_threshold);
|
|
if (is_sharp)
|
|
{
|
|
// Allocate new left / right points for the start of this segment as these points will receive their own normals to indicate a sharp turn.
|
|
idx_a[RIGHT] = idx_last++;
|
|
volume.push_geometry(a[RIGHT], n_right);
|
|
idx_a[LEFT] = idx_last++;
|
|
volume.push_geometry(a[LEFT], n_left);
|
|
|
|
if (is_right_turn)
|
|
{
|
|
// Right turn. Fill in the right turn wedge.
|
|
volume.push_triangle(idx_prev[RIGHT], idx_a[RIGHT], idx_prev[TOP]);
|
|
volume.push_triangle(idx_prev[RIGHT], idx_prev[BOTTOM], idx_a[RIGHT]);
|
|
}
|
|
else
|
|
{
|
|
// Left turn. Fill in the left turn wedge.
|
|
volume.push_triangle(idx_prev[LEFT], idx_prev[TOP], idx_a[LEFT]);
|
|
volume.push_triangle(idx_prev[LEFT], idx_a[LEFT], idx_prev[BOTTOM]);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// The two successive segments are nearly collinear.
|
|
idx_a[LEFT] = idx_prev[LEFT];
|
|
idx_a[RIGHT] = idx_prev[RIGHT];
|
|
}
|
|
|
|
if (ii == lines.size())
|
|
{
|
|
if (!is_sharp)
|
|
{
|
|
// Closing a loop with smooth transition. Unify the closing left / right vertices.
|
|
::memcpy(volume.vertices_and_normals_interleaved.data() + idx_initial[LEFT] * 6, volume.vertices_and_normals_interleaved.data() + idx_prev[LEFT] * 6, sizeof(float) * 6);
|
|
::memcpy(volume.vertices_and_normals_interleaved.data() + idx_initial[RIGHT] * 6, volume.vertices_and_normals_interleaved.data() + idx_prev[RIGHT] * 6, sizeof(float) * 6);
|
|
volume.vertices_and_normals_interleaved.erase(volume.vertices_and_normals_interleaved.end() - 12, volume.vertices_and_normals_interleaved.end());
|
|
// Replace the left / right vertex indices to point to the start of the loop.
|
|
for (size_t u = volume.quad_indices.size() - 16; u < volume.quad_indices.size(); ++u)
|
|
{
|
|
if (volume.quad_indices[u] == idx_prev[LEFT])
|
|
volume.quad_indices[u] = idx_initial[LEFT];
|
|
else if (volume.quad_indices[u] == idx_prev[RIGHT])
|
|
volume.quad_indices[u] = idx_initial[RIGHT];
|
|
}
|
|
}
|
|
|
|
// This is the last iteration, only required to solve the transition.
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Only new allocate top / bottom vertices, if not closing a loop.
|
|
if (closed && (ii + 1 == lines.size()))
|
|
idx_b[TOP] = idx_initial[TOP];
|
|
else
|
|
{
|
|
idx_b[TOP] = idx_last++;
|
|
volume.push_geometry(b[TOP], n_top);
|
|
}
|
|
|
|
if (closed && (ii + 1 == lines.size()) && (width == width_initial))
|
|
idx_b[BOTTOM] = idx_initial[BOTTOM];
|
|
else
|
|
{
|
|
idx_b[BOTTOM] = idx_last++;
|
|
volume.push_geometry(b[BOTTOM], n_bottom);
|
|
}
|
|
|
|
// Generate new vertices for the end of this line segment.
|
|
idx_b[LEFT] = idx_last++;
|
|
volume.push_geometry(b[LEFT], n_left);
|
|
idx_b[RIGHT] = idx_last++;
|
|
volume.push_geometry(b[RIGHT], n_right);
|
|
|
|
::memcpy(idx_prev, idx_b, 4 * sizeof(int));
|
|
n_right_prev = n_right;
|
|
n_top_prev = n_top;
|
|
unit_v_prev = unit_v;
|
|
len_prev = len;
|
|
|
|
if (!closed)
|
|
{
|
|
// Terminate open paths with caps.
|
|
if (i == 0)
|
|
volume.push_quad(idx_a[BOTTOM], idx_a[RIGHT], idx_a[TOP], idx_a[LEFT]);
|
|
|
|
// We don't use 'else' because both cases are true if we have only one line.
|
|
if (i + 1 == lines.size())
|
|
volume.push_quad(idx_b[BOTTOM], idx_b[LEFT], idx_b[TOP], idx_b[RIGHT]);
|
|
}
|
|
|
|
// Add quads for a straight hollow tube-like segment.
|
|
// bottom-right face
|
|
volume.push_quad(idx_a[BOTTOM], idx_b[BOTTOM], idx_b[RIGHT], idx_a[RIGHT]);
|
|
// top-right face
|
|
volume.push_quad(idx_a[RIGHT], idx_b[RIGHT], idx_b[TOP], idx_a[TOP]);
|
|
// top-left face
|
|
volume.push_quad(idx_a[TOP], idx_b[TOP], idx_b[LEFT], idx_a[LEFT]);
|
|
// bottom-left face
|
|
volume.push_quad(idx_a[LEFT], idx_b[LEFT], idx_b[BOTTOM], idx_a[BOTTOM]);
|
|
}
|
|
|
|
#undef LEFT
|
|
#undef RIGHT
|
|
#undef TOP
|
|
#undef BOTTOM
|
|
}
|
|
|
|
static void point_to_indexed_vertex_array(const Vec3crd& point,
|
|
double width,
|
|
double height,
|
|
GLIndexedVertexArray& volume)
|
|
{
|
|
// builds a double piramid, with vertices on the local axes, around the point
|
|
|
|
Vec3d center = unscale(point);
|
|
|
|
double scale_factor = 1.0;
|
|
double w = scale_factor * width;
|
|
double h = scale_factor * height;
|
|
|
|
// new vertices ids
|
|
int idx_last = int(volume.vertices_and_normals_interleaved.size() / 6);
|
|
int idxs[6];
|
|
for (int i = 0; i < 6; ++i)
|
|
{
|
|
idxs[i] = idx_last + i;
|
|
}
|
|
|
|
Vec3d displacement_x(w, 0.0, 0.0);
|
|
Vec3d displacement_y(0.0, w, 0.0);
|
|
Vec3d displacement_z(0.0, 0.0, h);
|
|
|
|
Vec3d unit_x(1.0, 0.0, 0.0);
|
|
Vec3d unit_y(0.0, 1.0, 0.0);
|
|
Vec3d unit_z(0.0, 0.0, 1.0);
|
|
|
|
// vertices
|
|
volume.push_geometry(center - displacement_x, -unit_x); // idxs[0]
|
|
volume.push_geometry(center + displacement_x, unit_x); // idxs[1]
|
|
volume.push_geometry(center - displacement_y, -unit_y); // idxs[2]
|
|
volume.push_geometry(center + displacement_y, unit_y); // idxs[3]
|
|
volume.push_geometry(center - displacement_z, -unit_z); // idxs[4]
|
|
volume.push_geometry(center + displacement_z, unit_z); // idxs[5]
|
|
|
|
// top piramid faces
|
|
volume.push_triangle(idxs[0], idxs[2], idxs[5]);
|
|
volume.push_triangle(idxs[2], idxs[1], idxs[5]);
|
|
volume.push_triangle(idxs[1], idxs[3], idxs[5]);
|
|
volume.push_triangle(idxs[3], idxs[0], idxs[5]);
|
|
|
|
// bottom piramid faces
|
|
volume.push_triangle(idxs[2], idxs[0], idxs[4]);
|
|
volume.push_triangle(idxs[1], idxs[2], idxs[4]);
|
|
volume.push_triangle(idxs[3], idxs[1], idxs[4]);
|
|
volume.push_triangle(idxs[0], idxs[3], idxs[4]);
|
|
}
|
|
|
|
void _3DScene::thick_lines_to_verts(
|
|
const Lines &lines,
|
|
const std::vector<double> &widths,
|
|
const std::vector<double> &heights,
|
|
bool closed,
|
|
double top_z,
|
|
GLVolume &volume)
|
|
{
|
|
thick_lines_to_indexed_vertex_array(lines, widths, heights, closed, top_z, volume.indexed_vertex_array);
|
|
}
|
|
|
|
void _3DScene::thick_lines_to_verts(const Lines3& lines,
|
|
const std::vector<double>& widths,
|
|
const std::vector<double>& heights,
|
|
bool closed,
|
|
GLVolume& volume)
|
|
{
|
|
thick_lines_to_indexed_vertex_array(lines, widths, heights, closed, volume.indexed_vertex_array);
|
|
}
|
|
|
|
static void thick_point_to_verts(const Vec3crd& point,
|
|
double width,
|
|
double height,
|
|
GLVolume& volume)
|
|
{
|
|
point_to_indexed_vertex_array(point, width, height, volume.indexed_vertex_array);
|
|
}
|
|
|
|
void _3DScene::extrusionentity_to_verts(const Polyline &polyline, float width, float height, float print_z, GLVolume& volume)
|
|
{
|
|
if (polyline.size() >= 2) {
|
|
size_t num_segments = polyline.size() - 1;
|
|
thick_lines_to_verts(polyline.lines(), std::vector<double>(num_segments, width), std::vector<double>(num_segments, height), false, print_z, volume);
|
|
}
|
|
}
|
|
|
|
// Fill in the qverts and tverts with quads and triangles for the extrusion_path.
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionPath &extrusion_path, float print_z, GLVolume &volume)
|
|
{
|
|
extrusionentity_to_verts(extrusion_path.polyline, extrusion_path.width, extrusion_path.height, print_z, volume);
|
|
}
|
|
|
|
// Fill in the qverts and tverts with quads and triangles for the extrusion_path.
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionPath &extrusion_path, float print_z, const Point ©, GLVolume &volume)
|
|
{
|
|
Polyline polyline = extrusion_path.polyline;
|
|
polyline.remove_duplicate_points();
|
|
polyline.translate(copy);
|
|
Lines lines = polyline.lines();
|
|
std::vector<double> widths(lines.size(), extrusion_path.width);
|
|
std::vector<double> heights(lines.size(), extrusion_path.height);
|
|
thick_lines_to_verts(lines, widths, heights, false, print_z, volume);
|
|
}
|
|
|
|
// Fill in the qverts and tverts with quads and triangles for the extrusion_loop.
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionLoop &extrusion_loop, float print_z, const Point ©, GLVolume &volume)
|
|
{
|
|
Lines lines;
|
|
std::vector<double> widths;
|
|
std::vector<double> heights;
|
|
for (const ExtrusionPath &extrusion_path : extrusion_loop.paths) {
|
|
Polyline polyline = extrusion_path.polyline;
|
|
polyline.remove_duplicate_points();
|
|
polyline.translate(copy);
|
|
Lines lines_this = polyline.lines();
|
|
append(lines, lines_this);
|
|
widths.insert(widths.end(), lines_this.size(), extrusion_path.width);
|
|
heights.insert(heights.end(), lines_this.size(), extrusion_path.height);
|
|
}
|
|
thick_lines_to_verts(lines, widths, heights, true, print_z, volume);
|
|
}
|
|
|
|
// Fill in the qverts and tverts with quads and triangles for the extrusion_multi_path.
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionMultiPath &extrusion_multi_path, float print_z, const Point ©, GLVolume &volume)
|
|
{
|
|
Lines lines;
|
|
std::vector<double> widths;
|
|
std::vector<double> heights;
|
|
for (const ExtrusionPath &extrusion_path : extrusion_multi_path.paths) {
|
|
Polyline polyline = extrusion_path.polyline;
|
|
polyline.remove_duplicate_points();
|
|
polyline.translate(copy);
|
|
Lines lines_this = polyline.lines();
|
|
append(lines, lines_this);
|
|
widths.insert(widths.end(), lines_this.size(), extrusion_path.width);
|
|
heights.insert(heights.end(), lines_this.size(), extrusion_path.height);
|
|
}
|
|
thick_lines_to_verts(lines, widths, heights, false, print_z, volume);
|
|
}
|
|
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionEntityCollection &extrusion_entity_collection, float print_z, const Point ©, GLVolume &volume)
|
|
{
|
|
for (const ExtrusionEntity *extrusion_entity : extrusion_entity_collection.entities)
|
|
extrusionentity_to_verts(extrusion_entity, print_z, copy, volume);
|
|
}
|
|
|
|
void _3DScene::extrusionentity_to_verts(const ExtrusionEntity *extrusion_entity, float print_z, const Point ©, GLVolume &volume)
|
|
{
|
|
if (extrusion_entity != nullptr) {
|
|
auto *extrusion_path = dynamic_cast<const ExtrusionPath*>(extrusion_entity);
|
|
if (extrusion_path != nullptr)
|
|
extrusionentity_to_verts(*extrusion_path, print_z, copy, volume);
|
|
else {
|
|
auto *extrusion_loop = dynamic_cast<const ExtrusionLoop*>(extrusion_entity);
|
|
if (extrusion_loop != nullptr)
|
|
extrusionentity_to_verts(*extrusion_loop, print_z, copy, volume);
|
|
else {
|
|
auto *extrusion_multi_path = dynamic_cast<const ExtrusionMultiPath*>(extrusion_entity);
|
|
if (extrusion_multi_path != nullptr)
|
|
extrusionentity_to_verts(*extrusion_multi_path, print_z, copy, volume);
|
|
else {
|
|
auto *extrusion_entity_collection = dynamic_cast<const ExtrusionEntityCollection*>(extrusion_entity);
|
|
if (extrusion_entity_collection != nullptr)
|
|
extrusionentity_to_verts(*extrusion_entity_collection, print_z, copy, volume);
|
|
else {
|
|
throw Slic3r::RuntimeError("Unexpected extrusion_entity type in to_verts()");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void _3DScene::polyline3_to_verts(const Polyline3& polyline, double width, double height, GLVolume& volume)
|
|
{
|
|
Lines3 lines = polyline.lines();
|
|
std::vector<double> widths(lines.size(), width);
|
|
std::vector<double> heights(lines.size(), height);
|
|
thick_lines_to_verts(lines, widths, heights, false, volume);
|
|
}
|
|
|
|
void _3DScene::point3_to_verts(const Vec3crd& point, double width, double height, GLVolume& volume)
|
|
{
|
|
thick_point_to_verts(point, width, height, volume);
|
|
}
|
|
|
|
} // namespace Slic3r
|