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Author	SHA1	Message	Date
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	4e235c184b	Blender modifications for Cycles integration. Some notes about code status: * The Blender modifications were fairly quickly put together, much more code polish and work is needed to get this to a state where it can be committed to trunk. Files created with this version may not work in future versions. * Only simple path tracing is supported currently, but we intend to provide finer control, and more options where it makes sense. * For GPU rendering, only CUDA works currently. The intention is to have the same kernel code compile for C++/OpenCL/CUDA, some more work is needed to get OpenCL functional. * There are two shading backends: GPU compatible and Open Shading Language. Unfortunately, OSL only runs on the CPU currently, getting this to run on the GPU would be a major undertaking, and is unlikely to be supported soon. Additionally, it's not possible yet to write custom OSL shaders. * There is some code for adaptive subdivision and displacement, but it's far from finished. The intention is to eventually have a nice unified bump and displacement system. * The code currently has a number of fairly heavy dependencies: Boost, OpenImageIO, GLEW, GLUT, and optionally OSL, Partio. This makes it difficult to compile, we'll try to eliminate some, it may take a while before it becomes easy to compile this.	2011-04-27 14:36:02 +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

Author

SHA1

Message

Date

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

4e235c184b

Blender modifications for Cycles integration.

Some notes about code status:

* The Blender modifications were fairly quickly put together, much more code
  polish and work is needed to get this to a state where it can be committed
  to trunk. Files created with this version may not work in future versions.

* Only simple path tracing is supported currently, but we intend to provide
  finer control, and more options where it makes sense.

* For GPU rendering, only CUDA works currently. The intention is to have the
  same kernel code compile for C++/OpenCL/CUDA, some more work is needed to
  get OpenCL functional.

* There are two shading backends: GPU compatible and Open Shading Language.
  Unfortunately, OSL only runs on the CPU currently, getting this to run on
  the GPU would be a major undertaking, and is unlikely to be supported soon.
  Additionally, it's not possible yet to write custom OSL shaders.

* There is some code for adaptive subdivision and displacement, but it's far
  from finished. The intention is to eventually have a nice unified bump and
  displacement system.

* The code currently has a number of fairly heavy dependencies: Boost,
  OpenImageIO, GLEW, GLUT, and optionally OSL, Partio. This makes it difficult
  to compile, we'll try to eliminate some, it may take a while before it
  becomes easy to compile this.

2011-04-27 14:36:02 +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

3 Commits