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9 Commits

Author SHA1 Message Date
Brecht Van Lommel
db1664ed4c Cycles: 
* Compute MD5 hash to deal with nvidia opencl compiler cache not recognizing
  changes in #included files, makes it possible to do kernel compile only
  once and remember it for the next time blender is started.
* Kernel tweak to compile with ATI/linux. Enabling any more functionality than
  simple clay render still chokes the compiler though, without a specific error
  message ..
 2011-09-03 10:49:54 +00:00
Brecht Van Lommel
67030aaf84 Cycles: optimizations for instances in scene updates before render starts, 
should load a non-trivial mesh instanced many times quite a bit faster now.
 2011-09-02 16:15:18 +00:00
Brecht Van Lommel
1135875ab1 Cycles: 
* Fix crash in light path node
* Fix struct alignment issue for cuda
* Fix issue with instances taking up too much memory
* Fix issue with ray visibility working incorrect on some objects
* Enable OpenCL always and remove option, it has no dependencies so may as well
* Refuse to load kernel if OpenCL version < 1.1, recent drivers are needed
* Better error handling for OpenCL device
* 3D views with rendered draw mode will now revert to wireframe on file load
 2011-09-02 14:55:06 +00:00
Brecht Van Lommel
3c7dcd7a47 Cycles: compile opencl kernels in non-blocking thread, and don't crash on 
build failure but show error message in status text.
 2011-09-02 00:10:03 +00:00
Brecht Van Lommel
1f7ac51c36 Cycles: fix opencl device bug that crashed on windows. Now shows diffuse 
meshes here on windows/nvidia.
 2011-09-01 22:40:52 +00:00
Brecht Van Lommel
27102bfec4 Cycles: OpenCL library is now dynamically loaded so that blender doesn't crash 
if it's not installed on the system.

Code copied from clew.h/clew.c in CLCC:
http://clcc.sourceforge.net/
 2011-09-01 19:00:23 +00:00
Brecht Van Lommel
6686f18948 Cycles: more opencl tweaks, status is: 
* kernel has shading nodes / textures disabled, amd/nvidia opencl
  compilers choke on these, need to figure out how to avoid this
* works in cycles_test, not available as option in blender yet
* kernel compiles and runs with opencl 1.1 from intel/amd/nvidia
 2011-08-11 12:36:08 +00:00
Brecht Van Lommel
63d4bafff5 Cycles: some steps to getting OpenCL backend to compile. 2011-05-20 12:26:01 +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