Commit Graph

14 Commits

Author SHA1 Message Date
Thomas Dinges
285ef99931 Cycles:
* Added 2 new nodes to combine and separate HSV colors. 

Screenshot:
http://www.pasteall.org/pic/show.php?id=54828
2013-07-03 23:46:56 +00:00
Thomas Dinges
4a113cab0a Merged revision(s) 57768-57827 from trunk/blender into soc-2013-dingto 2013-06-27 16:16:54 +00:00
Brecht Van Lommel
7902fa57b6 Code cleanup: cycles
* Reshuffle SSE #ifdefs to try to avoid compilation errors enabling SSE on 32 bit.
* Remove CUDA kernel launch size exception on Mac, is not needed.
* Make OSL file compilation quiet like c/cpp files.
2013-06-26 23:29:33 +00:00
Thomas Dinges
e4ef608020 Cycles / Vector Transform Node:
* Implementation of Vector Transform Node into Cycles.
* OSL backend is done, SVM needs the matrices still.
2013-06-23 17:51:08 +00:00
Thomas Dinges
d523d27e62 Cycles / Blackbody node:
* First step towards a Blackbody to RGB converter. You can specify a color in Kelvin inside the node.
* Only implemented for OSL atm, SVM will follow.
2013-06-13 08:55:51 +00:00
Thomas Dinges
cf359f6c7f Cycles / Wavelength to RGB node:
* Added a node to convert wavelength (in nanometer, from 380nm to 780nm) to RGB values. This can be useful to match real world colors easier.

Example render:
http://www.pasteall.org/pic/show.php?id=53202

ToDo:
* Move some functions into an util file, maybe a common util_color.h or so.
* Test GPU, unfortunately sm_21 doesn't work for me yet.
2013-06-09 20:46:22 +00:00
Thomas Dinges
99b325cebf Cycles / Toon BSDF:
* Added a toon bsdf node to Cycles. This was already available as OSL only closure, but is now available inside the SVM backed as well, for CPU and GPU rendering. 
* There are 2 variations available, diffuse and glossy toon, selectable via a menu inside the node. 

Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Toon

Example render & blend file:
http://www.pasteall.org/pic/show.php?id=51970
http://www.pasteall.org/blend/21579
2013-05-23 17:45:20 +00:00
Thomas Dinges
3758193c18 Cycles / Wireframe node:
* Added a wireframe node (Input category) to get access to Mesh wireframe data. 
The thickness can be controlled via a "Size" parameter, and is available in world units (default) and screen pixel size. 
* Only the triangulated mesh is available now, quads is for later. 

Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Wireframe

Render and Example file:
http://www.pasteall.org/pic/show.php?id=51731
http://www.pasteall.org/blend/21510
2013-05-20 15:58:37 +00:00
Brecht Van Lommel
de9dffc61e Cycles: initial subsurface multiple scattering support. It's not working as
well as I would like, but it works, just add a subsurface scattering node and
you can use it like any other BSDF.

It is using fully raytraced sampling compatible with progressive rendering
and other more advanced rendering algorithms we might used in the future, and
it uses no extra memory so it's suitable for complex scenes.

Disadvantage is that it can be quite noisy and slow. Two limitations that will
be solved are that it does not work with bump mapping yet, and that the falloff
function used is a simple cubic function, it's not using the real BSSRDF
falloff function yet.

The node has a color input, along with a scattering radius for each RGB color
channel along with an overall scale factor for the radii.

There is also no GPU support yet, will test if I can get that working later.

Node Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#BSSRDF

Implementation notes:
http://wiki.blender.org/index.php/Dev:2.6/Source/Render/Cycles/Subsurface_Scattering
2013-04-01 20:26:52 +00:00
Thomas Dinges
6b05c887d3 Cycles Hair:
* Implemented the Hair Info Node for OSL.
2012-12-29 01:57:32 +00:00
Brecht Van Lommel
43c04eefe3 Cycles: RGB and Vector Curves nodes now supported, with the limitation that the
range must be left to the default (0..1 and -1..1).
2012-12-11 14:39:37 +00:00
Brecht Van Lommel
2324c80f50 Cycles OSL: windows build system changes to support static OSL/OIIO. 2012-11-15 17:16:27 +00:00
Brecht Van Lommel
27d647dcf8 Cycles: 4 new nodes.
* Tangent: generate a tangent direction for anisotropic shading. Can be either
  radial around X/Y/Z axis, or from a UV map. The default tangent for the
  anisotropic BSDF and geometry node is now always radial Z, for UV tangent use
  this node now.

http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Tangent

* Normal Map: generate a perturbed normal from an RGB normal map image. This
  is usually chained with an Image Texture node in the color input, to specify
  the normal map image. For tangent space normal maps, the UV coordinates for
  the image must match, and the image texture should be set to Non-Color mode
  to give correct results.

http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/More#Normal_Map

* Refraction BSDF: for best results this node should be considered as a building
  block and not be used on its own, but rather mixed with a glossy node using a
  fresnel type factor. Otherwise it will give quite dark results at the edges for
  glossy refraction.

http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Refraction

* Ambient Occlusion: controls the amount of AO a surface receives, rather than
  having just a global factor in the world. Note that this outputs a shader and
  not a color, that's for another time.

http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Nodes/Shaders#Ambient_Occlusion
2012-11-06 19:59:02 +00:00
Brecht Van Lommel
615fe0295f Cycles OSL: refactoring and fixes
* Moved kernel/osl/nodes to kernel/shaders
* Renamed standard attributes to use geom:, particle:, object: prefixes
* Update stdosl.h to properly reflect the closures we support
* Fix the wrong stdosl.h being used for building shaders
* Add geom:numpolyvertices, geom:trianglevertices, geom:polyvertices attributes
2012-11-03 14:32:13 +00:00