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Add support for Draco (.drc) format (#10681)

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* Add read support for Google's Draco (.drc) format.

* Fix build on Linux

* Use boost instead of fstat.

* Switch to boost memory-mapped file to save RAM and potentially improve performance.

* Trim trailing whitespace.

* Initial Draco write support.

Currently always exports with 16-bit precision and speed 0 (best compression).
The back-end function does have arguments to specify them, it's just not hooked into the GUI.

* Add Draco to the About dialogue.

* Fix Linux compile (hopefully)

* Add an option to associate DRC files on Windows.

* Implement a Preferences option to set Draco position quantization bits

* Update src/slic3r/GUI/Preferences.cpp

Co-authored-by: Ian Bassi <ian.bassi@outlook.com>

* Some slight changes to ianalexis's suggestion.

* Implement a create_item_spinctrl() function for numeric inputs, and use that instead of create_item_input().

* Move "bits" to inside the spinctrl box.

* Refactor following yw4z's feedback

* Update src/slic3r/GUI/Preferences.cpp

Co-authored-by: Ian Bassi <ian.bassi@outlook.com>

* Change to 0 bits as the default setting for Draco export precision.

* Change to a lossy checkbox and a bits field with a range of 8-30.

* Proper SpinInput code from yw4z

* Revert "Proper SpinInput code from yw4z"

This reverts commit 7e9c85f31a0d776860690595b71441498c2034d1.

* Revert "Change to a lossy checkbox and a bits field with a range of 8-30."

This reverts commit d642c9bcc0c51b35bf915e04f35d9991c8485ddd.

* Redo preferences based on SoftFever's feedback

* Refactor to minimize code duplication

* Fix padding

* Improve Draco export quality level tooltip clarity

Clarify that 0 means lossless compression (not uncompressed),
document the valid lossy range (8-30), and better explain the
tradeoff between file size and geometric detail.

---------

Co-authored-by: SoftFever <softfeverever@gmail.com>
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>
Co-authored-by: Ian Bassi <ian.bassi@outlook.com>
This commit is contained in:
Maeyanie
2026-02-06 05:27:17 -05:00
committed by GitHub
parent 6d57ada0a8
commit 48bf68a917
18 changed files with 396 additions and 12 deletions
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3
src/libslic3r/Model.cpp
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@@ -14,6 +14,7 @@
#include "Format/AMF.hpp"
#include "Format/svg.hpp"
#include "Format/DRC.hpp"
// BBS
#include "FaceDetector.hpp"
@@ -311,6 +312,8 @@ Model Model::read_from_file(const std::string&
result = load_svg(input_file.c_str(), &model, message);
//BBS: remove the old .amf.xml files
//else if (boost::algorithm::iends_with(input_file, ".amf") || boost::algorithm::iends_with(input_file, ".amf.xml"))
else if (boost::algorithm::iends_with(input_file, ".drc"))
result = load_drc(input_file.c_str(), &model);
else if (boost::algorithm::iends_with(input_file, ".amf"))
//BBS: is_xxx is used for is_inches when load amf
result = load_amf(input_file.c_str(), config, config_substitutions, &model, is_xxx);