The remaining functions in blender_python.cpp changed from using the
MACRO to use python_thread_state_save/python_thread_state_restore
Since this bug only happens when 'Persistent Images' is on it was
introduced in some of the early merges with master and I never caught
it.
Thanks Daniel Salazar for helping with the bug hunting.
Expand Cycles to use the new baking API in Blender.
It works on the selected object, and the panel can be accessed in the Render panel (similar to where it is for the Blender Internal).
It bakes for the active texture of each material of the object. The active texture is currently defined as the active Image Texture node present in the material nodetree. If you don't want the baking to override an existent material, make sure the active Image Texture node is not connected to the nodetree. The active texture is also the texture shown in the viewport in the rendered mode.
Remember to save your images after the baking is complete.
Note: Bake currently only works in the CPU
Note: This is not supported by Cycles standalone because a lot of the work is done in Blender as part of the operator only, not the engine (Cycles).
Documentation:
http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Bake
Supported Passes:
-----------------
Data Passes
* Normal
* UV
* Diffuse/Glossy/Transmission/Subsurface/Emit Color
Light Passes
* AO
* Combined
* Shadow
* Diffuse/Glossy/Transmission/Subsurface/Emit Direct/Indirect
* Environment
Review: D421
Reviewed by: Campbell Barton, Brecht van Lommel, Sergey Sharybin, Thomas Dinge
Original design by Brecht van Lommel.
The entire commit history can be found on the branch: bake-cycles
The was actually caused by the way how Cycles uses objects
layers. It's not possible to rely on the fact that layers
are flushed from Base to Object. It's only valid when rendering
active scene.
Now made it so layers are used from the base.
Nice little mistake, since the invalid mem access only happened once (the first time),
was close to valid mem, and was only used to read, it would not crash often...
Idea and code by Brecht, many thanks!
Reviewers: brecht
Reviewed By: brecht
CC: campbellbarton, dingto
Differential Revision: https://developer.blender.org/D369
These can currently be accessed by adding an Attribute node and specifying one
of those three names. A Smoke/Fire node should be added at some point to make
this more convenient.
These values might change still before the release, in particular for flame the
meaning seems unclear, it's just values in the 0..1 range. This is useful for
color ramps, but it might be good if this was also available as temperature in
kelvin so it can be plugged into the blackbody node. But I couldn't figure out
from the smoke code if or how this corresponds to a physical unit.
Here's a (quite poor) example file for a fire + smoke setup:
http://www.pasteall.org/blend/27990
Notes:
* The motion steps only affect deformation motion blur.
* The actual number of steps is 2^(steps - 1). This avoids having to sample at
many different times for object with more/fewer steps, now the times overlap.
* Deformation motion blur is enabled by default in existing files that have
motion blur enabled. If the object is not deforming, this will be detected at
export time, so raytracing performance will not be affected.
Part of the code is from the summer of code project by Gavin Howard.
This now supports multiple steps and subframe sampling of motion.
There is one difference for object and camera transform motion blur. It still
only supports two steps there, but the transforms are now sampled at subframe
times instead of the previous and next frame and then interpolated/extrapolated.
This will give different render results in some cases but it's more accurate.
Part of the code is from the summer of code project by Gavin Howard, but it has
been significantly rewritten and extended.
Issue was caused by the wrong usage of OCIO GLSL binding API. To make it
work properly on pre-GLSL-1.3 drivers shader is to be enabled after the
texture is binded to the opengl context. Otherwise it wouldn't know the
proper texture size.
This is actually a regression in 2.70 and to be ported to 'a'.
There are a couple of bugs that come together here:
* Particle hacks: extra modifier stack evaluation just for particles in
rna_Object_create_duplilist. This is where the primary issue stems from,
the "for_render" setting replaced the G.is_rendering flag in threaded
depsgraph. This causes particles to recalculate the entire modifier
stack with _render_ settings instead of viewport settings now. Fixed by
taking the 'preview' parameter in Cycles into account.
* Buggy skin modifier: The skin modifier generates a different amount of
vertices and faces **on every execution**. This must be looked at
separately, but it could be another reason why cycles constantly
restarted the sync process.
* Particles get re-distributed randomly every time (changing seed). This
could be caused just by the broken skin modifier, but might still be an
issue when simply rendering with cycles, since the psys will be
evaluated for render settings, if just temporarily.
This adds a new option "Sample All Lights" to the Sampling panel in Cycles (Branched Path). When enabled, Cycles will sample all the lights in the scene for the indirect samples, instead of randomly picking one. This is already happening for direct samples, now you can optionally enable it for indirect.
Example file and renders:
Blend file: http://www.pasteall.org/blend/27411
Random: http://www.pasteall.org/pic/show.php?id=68033
All: http://www.pasteall.org/pic/show.php?id=68034
Sampling all lights is a bit slower, but there is less variance, so it should help in situations with many lights.
Patch by myself with some tweaks by Brecht.
Differential Revision: https://developer.blender.org/D391
