Commit Graph

10 Commits

Author SHA1 Message Date
Brecht Van Lommel
5fd67a3ba5 Cycles: enable multi closure sampling and transparent shadows only on CPU and
CUDA cards with shader model >= 2 for now (GTX 4xx, 5xx, ..). The CUDA compiler
can't handle the increased kernel size currently.
2011-10-16 18:54:27 +00:00
Brecht Van Lommel
60bc63c7b8 Cycles: enable improved closure sampling, this should give less noise for mix, add
and glass shaders. How well this will work on non-fermi GPU's is unclear still, it's
a bit heavy on register usage.
2011-10-16 17:40:47 +00:00
Brecht Van Lommel
9ebfcea8f3 Cycles: revert commit that joined surface/volume socket into a single shader socket,
on second thought this makes it a bit too difficult to understand what's going on.
2011-10-12 23:03:12 +00:00
Brecht Van Lommel
7503a7edfb Cycles: replace surface/volume sockets in output nodes with a single shader socket,
decided it's better to render objects as either surface or volume.

This may break the volume rendering patch, but shaders with volume closures still
get tagged as having volume closures, so it should be fixable without too many
changes.
2011-10-12 15:42:35 +00:00
Brecht Van Lommel
cdee3435c6 Cycles: internal changes that should have no effect on user level yet, added
shader flags for various purposes, and some code for light types other than
points.
2011-09-27 20:37:24 +00:00
Brecht Van Lommel
508bfebf36 Cycles: another bugfix for mix closure sampling + bump. 2011-09-21 11:54:28 +00:00
Brecht Van Lommel
66b1dfae89 Cycles: tweaks to properties and nodes
* Passes renamed to samples
* Camera lens radius renamed to aperature size/blades/rotation
* Glass and fresnel nodes input is now index of refraction
* Glossy and velvet fresnel socket removed
* Mix/add closure node renamed to mix/add shader node
* Blend weight node added for shader mixing weights

There is some version patching code for reading existing files, but it's not
perfect, so shaders may work a bit different.
2011-09-16 13:14:02 +00:00
Brecht Van Lommel
0a5fcf3da3 Cycles: fix issue with mix shaders, leading to use of uninitialized memory. 2011-09-16 13:00:09 +00:00
Brecht Van Lommel
ebc653463d Cycles:
* Fix missing update when editing objects with emission materials.
* Fix preview pass rendering set to 1 not showing full resolution.
* Fix CUDA runtime compiling failing due to missing cache directory.
* Use settings from first render layer for visibility and material override.

And a bunch of incomplete and still disabled code mostly related to closure
sampling.
2011-09-12 13:13:56 +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