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14 Commits

Author SHA1 Message Date
Brecht Van Lommel
1e045a2417 Cycles: CUDA runtime kernel compilation can now find CUDA 6.0. 2013-12-13 19:12:07 +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
16204bd647 Cycles: prepare to make CUDA 5.0 the official version we use 
* Add CUDA compiler version detection to cmake/scons/runtime
* Remove noinline in kernel_shader.h and reenable --use_fast_math if CUDA 5.x
  is used, these were workarounds for CUDA 4.2 bugs
* Change max number of registers to 32 for sm 2.x (based on performance tests
  from Martijn Berger and confirmed here), and also for NVidia OpenCL.

Overall it seems that with these changes and the latest CUDA 5.0 download, that
performance is as good as or better than the 2.67b release with the scenes and
graphics cards I tested.
 2013-06-19 17:54:23 +00:00
Antonis Ryakiotakis
f2891d3731 For non-windows systems, check for CUDA compiler during runtime 2013-01-14 19:33:16 +00:00
Sergey Sharybin
e5179bfefc Remove usage WITH_CYCLES_CUDA_BINARIES in code, use check for 
precompiled cubins instead,

Logic here is following now:
- If there're precompiled cubins, assume CUDA compute is available,
  otherwise
- If cuda toolkit found, assume CUDA compute is available
- In all other cases CUDA compute is not available

For windows there're still check for only precompiled binaries,
no runtime compilation is allowed.

Ended up with such decision after discussion with Brecht. The thing
is, if we'll support runtime compilation on windows we'll end up
having lots of reports about different aspects of something doesn't
work (you need particular toolkit version, msvc installed, environment
variables set properly and so) and giving feedback on such reports
will waste time.
 2013-01-14 17:30:33 +00:00
Brecht Van Lommel
5f4c7e5da4 Cycles: add some extra CUDA nvcc paths for runtime compile, might help for #33622. 2012-12-21 10:27:35 +00:00
Sergey Sharybin
b861f8c3f8 Cycles: suppress path to nvcc appearing in the console in cases 
cuda toolkit is installed to different place than /usr/local/cuda
(i.e. happens when using cuda toolkit from repository)
 2012-10-18 13:48:02 +00:00
Campbell Barton
0fbb6bff27 style cleanup: block comments 2012-06-09 17:22:52 +00:00
Joshua Leung
4e83c67baa Hack-fix for crash-by-assertion on mingw builds on startup if the CUDA driver on 
the computer is too old (and probably can't be upgraded to a version that does)
to support the cuDriverGetVersion method.
 2011-11-12 03:59:45 +00:00
Brecht Van Lommel
c42772fc95 Cycles: 
* Add back option to bundle CUDA kernel binaries with builds.
* Disable runtime CUDA kernel compilation on Windows, couldn't get this working,
  since it seems to depend on visual studio being installed, even though for
  this particular case it shouldn't be needed. CMake only at the moment.
* Runtime compilation on linux/mac should now work if nvcc is not installed in
  the default location, but available in PATH.
 2011-11-10 12:52:17 +00:00
Brecht Van Lommel
a56c6e18a8 Cycles: 
* Disable precompiled cuda binaries, always do at run time
* Change preview samples default to 10
* Hide volume panels since they don't do anything yet
 2011-11-08 14:10:33 +00:00
Brecht Van Lommel
cfbd6cf154 Cycles: 
* OpenCL now only uses GPU/Accelerator devices, it's only confusing if CPU
  device is used, easy to enable in the code for debugging.
* OpenCL kernel binaries are now cached for faster startup after the first
  time compiling.
* CUDA kernels can now be compiled and cached at runtime if the CUDA toolkit
  is installed. This means that even if the build does not have CUDA enabled,
  it's still possible to use it as long as you install the toolkit.
 2011-09-09 12:04:39 +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