Blender Git Loki

Blender 2.78c: Fix Brick Texture GLSL, broken after Mortar Smooth addition.

Fix T50550: GPUShader: compile error - Background image not showing in
viewport.

Caused by rBd6cf28c5e15739f864fbf04614c2a50708b4b152, which forgot to
update the GLSL code for the "Light Path" node.

Blender 2.78c: Fix wrong cycles hair render results when using BVH motion steps

This commit contains all commits required to get proper hair rendering
with BVH motion steps enabled.

The issue here was mainly coming from minimal pixel width feature
which is quite commonly enabled in production shots.

This feature will use some probabilistic heuristic in the curve
intersection function to check whether we need to return intersection
or not. This probability is calculated for every intersection check.
Now, when we use multiple BVH nodes for curve primitives we increase
probability of that primitive to be considered a good intersection
for us. This is similar to increasing minimal width of curve.

What is worst here is that change in the intersection probability
fully depends on exact layout of BVH, meaning probability might
change differently depending on a view angle, the way how builder
binned the primitives and such. This makes it impossible to do
simple check like dividing probability by number of BVH steps.

Other solution might have been to split BVH into fully independent
trees, but that will increase memory usage of all the static
objects in the scenes, which is also not something desirable.

For now used most simple but robust approach: store BVH primitives
time and test it in curve intersection functions. This solves the
regression, but has two downsides:

- Uses more memory.

which isn't surprising, and ANY solution to this problem will
use more memory.

What we still have to do is to avoid this memory increase for
cases when we don't use BVH motion steps.

- Reduces number of maximum available textures on pre-kepler cards.

There is not much we can do here, hardware gets old but we need
to move forward on more modern hardware..

Blender 2.78c: Port all commits related on new Cycles regression tests

Blender 2.78b: Point addons to an updated revision

fix, keep bake until convert to keyframe has been finished, and delete then

Deleting the bake after changing the rigidbody count still is necessary, else the shard order and the mesh appearance of fracture modifier objects will be messed up.
Furthermore, decreased the convert to keyframe default threshold from 0.05 to 0.005, reconverting by re-using
the operator again still is somewhat broken

Blender release: We are officially 'b' now

[msvc] cmake fixes to support the recent for oiio/ffmpeg/numpy version changes.

Fix fluid sim build error with MSVC.

Fluids: improve multithreaded CPU usage.

Fixes for clamp-omp, fewer shared variables, fix some cases of threads writing
to the same memory location. Issue found by Jens Verwiebe, who reports 30%
speedup with 16 core CPU, when using this with a recent clang-omp version.

Cycles tests: Allow python auto-exec

Cycles: Fix rng_state initialization when using resumable rendering

fix attempt for disappearing fm debris particles after baking

crash fix, do not update tessface data while loading, only ensure it (saved fracture might have been invalid mesh)

Fix compilation error with latest OIIO 1.7.8

There are some changes in OIIO includes so now need to do some
things differently.

Return correct alpha for environment map in GLSL

Fix T49405: Crash when baking with adaptive subdivision

Blenders baking system currently doesn't support the topology used by
adaptive subdivision and primitive ids will be wrong or out of range
leading to crashes. Updating the baking system to support other
topologies would be a bit involved, so for now we simply disable
subdivision while baking to avoid crashes.

Cycles: Don't rely on indirectly included algorithm

Cycles: Fix typo in the panel name

No user visible changes, it was a typo in the name of the class.

Spotted by povmaniac in IRC, thanks!

Cycles: Update current Cycles version