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261 Commits

Author SHA1 Message Date
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
136d27b350 Cycles: add some volume nodes, they don't actually do anything, this is just 
to give other developers who may want to work on this to get a starting point.
 2011-09-27 20:03:16 +00:00
Brecht Van Lommel
f4a9215d7c Cycles: svn merge -r39870:r40266 https://svn.blender.org/svnroot/bf-blender/trunk/blender 
Merging the node changes required a lot of conflict resolution, fixed the
issues I could find but if you want stability you might want to wait a bit
before updating.
 2011-09-17 13:28:40 +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
f97d7b234d Cycles: fix crash with group node sockets that don't connect to any node 
inside the group.
 2011-09-12 14:47:36 +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
Brecht Van Lommel
bae896691a Cycles: 
* Add alpha pass output, to use set Transparent option in Film panel.
* Add Holdout closure (OSL terminology), this is like the Sky option in the
  internal renderer, objects with this closure show the background / zero
  alpha.
* Add option to use Gaussian instead of Box pixel filter in the UI.
* Remove camera response curves for now, they don't really belong here in
  the pipeline, should be moved to compositor.

* Output full float values for rendering now, previously was only byte precision.
* Add a patch from Thomas to get a preview passes option, but still disabled
  because it isn't quite working right yet.
* CUDA: don't compile shader graph evaluation inline.
* Convert tabs to spaces in python files.
 2011-08-28 13:55:59 +00:00
Brecht Van Lommel
f7b9c85871 Cycles: fix some invalid memory access problems found by running the windows build in debug mode. 2011-08-21 10:32:15 +00:00
Brecht Van Lommel
eedcba7ed5 Cycles: for material/world/lamps, if use_nodes is disabled, show some 
default shaders instead of black.
 2011-05-31 11:28:04 +00:00
Brecht Van Lommel
922bb24865 Cycles: color space control for image/environment texture nodes. Ideally would 
be automated but need to think about how to do this, not so simply in a node
system. But guideline for now is, for color textures set to sRGB, for things like
bump or roughness map, set to Linear.
 2011-05-13 14:32:08 +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