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5 Commits

Author SHA1 Message Date
Brecht Van Lommel
6e93e33294 Cycles: add rejection of inf/nan samples, in principle these should not happen 
but this makes it more reliable for now.

Also add an integrator "Clamp" option, to clamp very light samples to a maximum
value. This will reduce accuracy but may help reducing noise and speed up
convergence.
 2012-04-05 15:17:45 +00:00
Brecht Van Lommel
b65061e2ae Cycles: code refactoring, to do render layer visibility test a bit different, 
replacing the camera visibility flag with object layer flags.
 2011-12-21 20:51:43 +00:00
Brecht Van Lommel
238f3a7d34 Cycles: seed value to get different noise values from renders, there was a patch 
for this but I've implemented it differently.
 2011-10-29 14:27:24 +00:00
Brecht Van Lommel
df625253ac Cycles: 
* Add max diffuse/glossy/transmission bounces
* Add separate min/max for transparent depth
* Updated/added some presets that use these options
* Add ray visibility options for objects, to hide them from
  camera/diffuse/glossy/transmission/shadow rays
* Is singular ray output for light path node

Details here:
http://wiki.blender.org/index.php/Dev:2.5/Source/Render/Cycles/LightPaths
 2011-09-01 15:53:36 +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