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Age	Commit message (Collapse)	Author
2019-12-09	Cycles: Add OptiX acceleration structure compaction	Patrick Mours
	This adds compaction support for OptiX acceleration structures, which reduces the device memory footprint in a post step after building. Depending on the scene this can reduce the amount of used device memory quite a bit and even improve performance (smaller acceleration structure improves cache usage). It's only enabled for background renders to make acceleration structure builds fast in viewport. Also fixes a bug in the memory management for OptiX acceleration structures: These were held in a dynamic vector of 'device_memory' instances and used the mem_alloc/mem_free functions. However, those keep track of memory instances in the 'cuda_mem_map' via pointers to 'device_memory' (which works fine everywhere else since those are never copied/moved). But in the case of the vector, it may decide to reallocate at some point, which invalidates those pointers and would result in some nasty accesses to invalid memory. So it is not actually safe to move a 'device_memory' object and therefore this removes the move operator overloads again. Reviewed By: brecht Differential Revision: https://developer.blender.org/D6369
2019-08-26	Cycles: change svm node decoding for more efficient code generation on GPU	Patrick Mours
	These functions no longer accept NULL. They were renamed for clarity and to avoid hidden merge issues. Ref D5363
2019-08-26	Cycles: remove workaround to pass ray by value	Patrick Mours
	CUDA is working correct without it now, and it's more efficient not to do this. Ref D5363
2019-08-26	Cycles: tweaks for better GPU code generation	Patrick Mours
	Uninitialized variables are harder to handle for the compiler. Ref D5363
2019-08-26	Cycles: fixes for building kernel without certain features	Patrick Mours
	Ref D5363
2019-04-17	ClangFormat: apply to source, most of intern	Campbell Barton
	Apply clang format as proposed in T53211. For details on usage and instructions for migrating branches without conflicts, see: https://wiki.blender.org/wiki/Tools/ClangFormat
2019-03-11	Fix T61103: Cycles bevel wrong on objects with negative scale.	Brecht Van Lommel

2018-12-06	Fix T57963: Cycles crash using AO for displacement.	Brecht Van Lommel
	Note this is not supported, there exists no geometry at this point, but it should not crash at least.
2018-08-24	Cycles: Cleanup, style	Sergey Sharybin
	I wouldn't mind changing style to have space after keyword, but there was no official code style change proposed.
2018-07-06	Cleanup: strip trailing space for cycles	Campbell Barton

2018-04-29	Cycles: Cleanup: Remove double semicolons	Lukas Stockner

2018-02-21	Fix T54107: bevel shader + normal map gives wrong result.	Brecht Van Lommel

2018-01-12	Fix Cycles bevel normal baking having some random incorrect pixels.	Brecht Van Lommel
	The bevel and SSS code could result in NaNs in some cases, tweak the formulas so this can't happen.
2017-11-22	Fix T53313: bevel shader with transmission render artifacts.	Brecht Van Lommel

2017-11-08	Cycles: add bevel shader, for raytrace based rounded edges.	Brecht Van Lommel
	The algorithm averages normals from nearby surfaces. It uses the same sampling strategy as BSSRDFs, casting rays along the normal and two orthogonal axes, and combining the samples with MIS. The main concern here is that we are introducing raytracing inside shader evaluation, which could be quite bad for GPU performance and stack memory usage. In practice it doesn't seem so bad though. Note that using this feature can easily slow down renders 20%, and that if you care about performance then it's better to use a bevel modifier. Mainly this is useful for baking, and for cases where the mesh topology makes it difficult for the bevel modifier to work well. Differential Revision: https://developer.blender.org/D2803