Revision as of 13:34, 2 April 2026

BlendLuxCore

Fresnel texture: "custom n,k" now accepts values > 1
Include "OptiX" in addon settings label to avoid user questions about compatibility
Added a workaround for a Blender bug that throws an error when Blender is closed https://projects.blender.org/blender/blender/issues/140488
Remove leftover code from the Addons system that is no longer used with the Extensions system.
Limit float values in viewport render to 16-bit in order to avoid overexposed areas being displayed as black.
Remove default filtering of Intel GPU devices
Add a checkbox to the material output node for enabling an override: When using shadow color, this allows light rays in addition to the shadow rays. (default off == no light rays, only shadow rays)
Fix rounding of convergence percentage, reaching 100% to early for complex scenes
Update compatibility for Blender 5.0
2D-mapping: Add an option to allow rotation around the center of UV-coordinate space

Adding BlendLuxHelper: A new helper, in the form of a Blender extension, which allows to configure the wheel that is imported by BlendLuxCore.
~~Change installation mechanism to use bpy.utils.extension_path_user()~~ (Reworked within the scope of BlendLuxHelper)
~~Added a Linux development shell script (optional utility for developers)~~ (replaced by BlendLuxHelper)

Reduction of Boost footprint, replaced with standard equivalents available in C++20.
For the need of previous point: replacement of apple-clang by clang 20 on MacOS platforms
New target 'wheel-test' that builds a testing wheel in local build (make wheel-test)
Requirement checking in make deps
luxrays: rename GetConfigDir as GetCacheDir and use XDG_CACHE_HOME according to specifications (@illwieckz)
Subdivision: add an "adaptive" setting to select between adaptive refinement and uniform refinement
Subdivision: multithreaded version
Fix a bug leading to unstable brightness between renderings when using saved crashes (Credit to FELIX Render developers)
Fix volume evaluation in BiDir engine https://github.com/LuxCoreRender/LuxCore/issues/647
Fix various bugs when using orthographic camera with light tracing https://github.com/LuxCoreRender/LuxCore/issues/667
Apply the behavior of the BiDir engine w.r.t. shadow color mechanism to Path+Light tracing. Breaking change for scenes using shadow color and light tracing (not BiDir)!

Dependencies updated to latest versions
Removed a workaround introduced in previous version (we used to build a fake wheel to get containerization)
OpenMP - MacOS: Use of homebrew OpenMP (up-to-date, compatible with clang 20) rather than Conan llvm-openmp (version 17...). As a consequence, for MacOS Intel, a version >= 13.0 is required.
Opensubdiv: tbb activation. As a consequence, for MacOS Arm, a version >= 14.2 is required.
OpenImageIO: deactivation of several image formats that seem unrelated to or unsupported by LuxCore: freetype, hdf5, ffmpeg, libheif, ptex, opencv, webp. This removal spares both compilation time and build result size. Those formats are reactivable, in case they were missing.
OpenImageIO: To the contrary, activation of tbb option.
Embree: Upgraded to version 4.
libjpeg: Replaced with libjpeg-turbo

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 * Fresnel texture: "custom n,k" now accepts values > 1
 * Include "OptiX" in addon settings label to avoid user questions about compatibility
-* Added a workaround for a Blender bug that throws an error when Blender is closed
+* Added a workaround for a Blender bug that throws an error when Blender is closed https://projects.blender.org/blender/blender/issues/140488
 * Remove leftover code from the Addons system that is no longer used with the Extensions system.
 * Limit float values in viewport render to 16-bit in order to avoid overexposed areas being displayed as black.
 * Remove default filtering of Intel GPU devices
 * Add a checkbox to the material output node for enabling an override: When using shadow color, this allows light rays in addition to the shadow rays. (default off == no light rays, only shadow rays)
+* Fix rounding of convergence percentage, reaching 100% to early for complex scenes
+* Update compatibility for Blender 5.0
+* 2D-mapping: Add an option to allow rotation around the center of UV-coordinate space
 = BlendLuxHelper =