[Bf-codereview] Threaded object update and EvaluationContext (issue 15340044)

[brechtvanlommel at gmail.com]

This file crashes when rendering with the patch:
lib/tests/particles_and_hair/particle_dupligroups.blend


https://codereview.appspot.com/15340044/diff/1/b/source/blender/render/intern/source/convertblender.c
File b/source/blender/render/intern/source/convertblender.c (right):

https://codereview.appspot.com/15340044/diff/1/b/source/blender/render/intern/source/convertblender.c#newcode5098
b/source/blender/render/intern/source/convertblender.c:5098: +static
void create_derivedRender_add_task(void *node, void *user_data);
The whole system in this file seems to be missing for external engines
like Cycles? I'm not sure what we decided here, to postpone this
derivedRender or solve it, but in current state I don't think we can
merge it because it breaks Cycles render in many cases (for example
motion blur).

https://codereview.appspot.com/15340044/