Commit Graph

19 Commits

Author SHA1 Message Date
Thomas Dinges
345a8d8170 Cycles / OSL Textures:
* Ported my checker texture to OSL. :)
2012-06-03 00:02:24 +00:00
Thomas Dinges
014105f35d Cycles / OSL:
* More fixes for r41599, removed clouds and distorted noise textures and ported the Noise texture to OSL. 
ToDo: Color output is still commented, needs a closer look. 

* Some more fixes (comments, uninitialized variables)
2012-06-02 21:34:25 +00:00
Thomas Dinges
a5b2d2a2be Cycles / OSL:
* More OSL fixes for r41599, removed marble and wood texture and ported Wave Texture to OSL.
2012-06-02 19:14:14 +00:00
Thomas Dinges
d61e6e15e4 Cycles / OSL Fixes:
* OSL textures were never updated after the refactor in november 2011.
 
* Remove stucci texture and renamed blend to gradient.
2012-06-02 17:10:59 +00:00
Dalai Felinto
335ffb0ff3 Brightness/Contrast Node for Cycles
Contrast helps to adjust IBL (HDR images used for background lighting).
Note: In the UI we are caling it Bright instead of Brightness. This copy what Blender composite is doing.
Note2: the algorithm we are using produces pure black when contrast is 100. I'm not a fan of that, but it's a division by zero. I would like to look at other algorithms (what gimp does for example). But that would be only after 2.62.
2012-01-24 16:32:31 +00:00
Dalai Felinto
2a6fdbcccd Cycles Gamma Node
Node specially useful for Texture correction.

This is also a nice example of a simple node made from scratch in case someone wants to create their custom nodes.
Review by Brecht.
2011-12-16 20:35:06 +00:00
Dalai Felinto
3c8ab559a5 Normal Node - Cycles
reviewed by Brecht, with help from Lukas.

Note: dot is reversed compared to Blender.
In Blender Normals point outside, while in Cycles they point inside.
If you use your own custom vector with the Normal Node you will see a difference.
If you feed it with object normals it should work just as good.
2011-12-16 18:15:07 +00:00
Dalai Felinto
d15c5e51a1 Invert Color Cycles Node
as with the HSV node the OSL code is relying on the (yet to be implemented) autorename.

Also the svm code could use mix (svm_lerp) instead:
 32 . float3 color_inv = make_float3(1.0f, 1.0f, 1.0f) - color;
 35 . . stack_store_float3(stack, out_color, svm_lerp(color_inv, color, factor));

I have a feeling that each node 'program' should have the least program as possible. I'll see with Brecht later.
But overall I don't know if that's any fast. And apart from that I think we will need this kind of function to move to a library if multiple functions linked in are not a problem.
2011-12-03 23:05:35 +00:00
Dalai Felinto
78495ddf32 CameraData Input Cycles Node
----------------------------
reviewed and approved by Brecht 

Important note:
the camera Z is reverted compared to Blender render.
Now it goes from zero (camera) to positive (in front of the camera)
2011-12-02 20:36:13 +00:00
Dalai Felinto
4fd2736487 HSV Color Node for Cycles
.........................
note, the OSL code has a problem.
In the original node the input and output nodes have the same name (Color).
So this will be fixed here once Brecht come up with a nice autorenaming (or we do a doversion patch) for that.
2011-12-02 16:57:37 +00:00
Dalai Felinto
4db4a0933f SeparateRGB and CombineRGB nodes for Cycles materials
reviewed and approved by Brecht

my first OpenCL code \o/
2011-12-01 21:46:10 +00:00
Campbell Barton
cd9b51c1bf add some missing headers to cmake, also add some files as comments since it seems they should be added but evidently work fine without. 2011-11-10 06:05:22 +00:00
Campbell Barton
33814e0093 edits to cycles cmake files so cmake_consistency_check.py can parse them. 2011-11-08 20:27:37 +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
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
360fcd73fe Cycles:
* add some (disabled) test code for using OpenImageIO in imbuf
* link cycles, openimageio and boost into blender instead of a shared library
* some cmakefile changes to simplify the code and follow conventions better
* this may solve running cycles problems on windows XP, or give a different
  and hopefully more useful error message
2011-08-16 16:15:34 +00:00
Brecht Van Lommel
774584d7e8 Cycles: hook up the CMake build system.
New build instructions for Ubuntu Linux in the wiki:
http://wiki.blender.org/index.php/Dev:2.5/Source/Cycles
2011-04-28 13:47:27 +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