Commit Graph

14 Commits

Author SHA1 Message Date
Thomas Dinges
ee36e75b85 Cleanup: Fix Cycles Apache header.
This was already mixed a bit, but the dot belongs there.
2014-12-25 02:50:24 +01:00
Thomas Dinges
0ce3a755f8 Cycles: Add support for uchar4 attributes.
* Added support for uchar4 attributes to Cycles' attribute system.
* This is used for Vertex Colors now, which saves some memory (4 unsigned characters, instead of 4 floats).
* GPU Texture Limit on sm_20 and sm_21 decreased from 95 to 94, because we need a new texture for the uchar4 attributes. This is no problem for sm_30 or newer.

Part of my GSoC 2014.
2014-06-13 23:40:54 +02:00
Bastien Montagne
e29698d3cd Split Normals I (5/5): Add support of split normals to Cycles.
Idea and code by Brecht, many thanks!

Reviewers: brecht

Reviewed By: brecht

CC: campbellbarton, dingto

Differential Revision: https://developer.blender.org/D369
2014-04-13 12:51:13 +02:00
27043b8e40 Cycles code internals: add support for mesh voxel grid attributes.
These are internally stored as a 3D image textures, but accessible like e.g.
UV coordinates though the attribute node and getattribute().

This is convenient for rendering e.g. smoke objects where data like density is
really a property of the mesh, and it avoids having to specify the smoke object
in a texture node, instead the material will work with any smoke domain.
2014-03-29 13:03:48 +01:00
24ad7e0bea Cycles code refactor: add support for motion vertex attributes. 2014-03-29 13:03:46 +01:00
9cd2b19999 Cycles Volume Render: generated texture coordinates for volume render.
This does not support staying fixed while the surface deforms, but for static
meshes it should match up with the surface texture coordinates. Implemented
as a matrix transform from objects space to mesh texture space.

Making this work for deforming surfaces would be quite complicated, you might
need something like harmonic coordinates as used in the mesh deform modifier,
probably will not be possible anytime soon.
2013-12-31 17:38:26 +01:00
Brecht Van Lommel
b9ce231060 Cycles: relicense GNU GPL source code to Apache version 2.0.
More information in this post:
http://code.blender.org/

Thanks to all contributes for giving their permission!
2013-08-18 14:16:15 +00:00
Brecht Van Lommel
57cf48e7c6 Cycles Hair: refactoring to support generic attributes for hair curves. There
should be no functional changes yet. UV, tangent and intercept are now stored
as attributes, with the intention to add more like multiple uv's, vertex
colors, generated coordinates and motion vectors later.

Things got a bit messy due to having both triangle and curve data in the same
mesh data structure, which also gives us two sets of attributes. This will get
cleaned up when we split the mesh class.
2013-01-03 12:08:54 +00:00
Lukas Toenne
a9105a7dea Fix for Cycles (CUDA) compilation (again ...). Moved the AttributeStandard enum typedef and the attribute_standard_name mapping function to util_attribute/util_types headers, so they can properly be used by kernel and render files alike. This should avoid any std C includes which are not available in CUDA. Thanks to Sergey for help! 2012-09-07 11:06:45 +00:00
Lukas Toenne
674d295df3 Fix for attribute lookup in OSL. This uses a map in the OSL globals instead of the device texture. 2012-09-05 17:08:56 +00:00
Brecht Van Lommel
1d8c798188 Cycles: support for motion vector and UV passes.
Most of the changes are related to adding support for motion data throughout
the code. There's some code for actual camera/object motion blur raytracing
but it's unfinished (it badly slows down the raytracing kernel even when the
option is turned off), so that code it disabled still.

Motion vector export from Blender tries to avoid computing derived meshes
when the mesh does not have a deforming modifier, and it also won't store
motion vectors for every vertex if only the object or camera is moving.
2012-04-30 12:49:26 +00:00
Brecht Van Lommel
6cb896ff0a Cycles: fix msvc compile warning, patch by Jason Wilkins. 2012-02-28 16:45:01 +00:00
Brecht Van Lommel
da8f71bffb Cycles: some tweaks to silence msvc assertions in debug mode. 2011-10-03 15:31:45 +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