7 Commits

Author	SHA1	Message	Date
Thomas Dinges	de28a4d4b2	Cycles: Add an AVX kernel for CPU rendering. ... * AVX is available on Intel Sandy Bridge and newer and AMD Bulldozer and newer. * We don't use dedicated AVX intrinsics yet, but gcc auto vectorization gives a 3% performance improvement for Caminandes. Tested on an i5-3570, Linux x64. * No change for Windows yet, MSVC 2008 does not support AVX. Reviewed by: brecht Differential Revision: https://developer.blender.org/D216	2014-01-16 17:04:11 +01:00
Martijn Berger	e3a79258d1	Cycles: test code for sse 4.1 kernel and alignment for some vector types. ... This is mostly work towards enabling the __KERNEL_SSE__ option to start using SIMD operations for vector math operations. This 4.1 kernel performes about 8% faster with that option but overall is still slower than without the option. WITH_CYCLES_OPTIMIZED_KERNEL_SSE41 is the cmake flag for testing this kernel. Alignment of int3, int4, float3, float4 to 16 bytes seems to give a slight 1-2% speedup on tested systems with the current kernel already, so is enabled now.	2013-11-22 14:42:41 +01:00
Brecht Van Lommel	b9ce231060	Cycles: relicense GNU GPL source code to Apache version 2.0. ... More information in this post: http://code.blender.org/ Thanks to all contributes for giving their permission!	2013-08-18 14:16:15 +00:00
Brecht Van Lommel	7c9d993347	Fix cycles intersection issue with overlapping faces on windows 32 bit and CPU ... without SSE3 support, due to 80 bit precision float register being used for one bounding box but not the one next to it.	2013-02-04 16:12:37 +00:00
Brecht Van Lommel	db8024f4b5	Fix #29259: cycles issues on certain processors. Now two versions of the kernel ... are compiled, one SSE optimized and the other not, and it will choose between them at runtime.	2011-11-15 15:13:38 +00:00
Brecht Van Lommel	9b31cba74e	Cycles: some warning fixes, cpu device task tweaks, avoid unnecessary ... tonemap in non-viewport render, and some utility functions.	2011-09-08 18:58:07 +00:00
Ton Roosendaal	da376e0237	Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later. ... Cycles uses code from some great open source projects, many thanks them: * BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs": http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/ * Open Shading Language for a large part of the shading system: http://code.google.com/p/openshadinglanguage/ * Blender for procedural textures and a few other nodes. * Approximate Catmull Clark subdivision from NVidia Mesh tools: http://code.google.com/p/nvidia-mesh-tools/ * Sobol direction vectors from: http://web.maths.unsw.edu.au/~fkuo/sobol/ * Film response functions from: http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php	2011-04-27 11:58:34 +00:00