Blender Git Loki

Draw Manager: Extend simplification to UBOs & fix a context error.

Small cleanup

Draw Manager: Simplify usage and check for errors.

Eevee: Initial Depth Of Field commit.

GPUCompositing: Fix comment and component count.

Draw Manager: Add additive blending.

Object Mode Engine: Fix grid distance if view is camera view.

GPUTexture: Add support for 32bit textures.

Draw Manager: Add Triangle batching and empty batch.

This is usefull for Depth Of Field because we don't need to store data for each sprites and just generate them when rendering.

Draw Manager: Fullscreen triangle

Used a triangle instead of a quad for fullscreen passes.

Fix errors in vse ui commit

- Fixes double labels
- Fixes an aligned layout when un-needed
- Fixes an error were a layout can become disabled but never enabled again

Fix (unreported): Crash if a right click is performed on an image datablock (open btn f.e.).

Only access/insert the button_pointer if it's not null...

Merge remote-tracking branch 'origin/master' into blender2.8

Cycles: Use more stable version of integer square root function

Old code was working quite unreliable in combination with fast math
flag, especially when compiling with Clang. It seems we were hitting
result of the following bug submitted to Clang [1].

Basically, it was happening so that (int)sqrtf(64) was 7 when Cycles
is built with Clang but was correct 8 when built with GCC.

This commit works this around. Annoying, but don't see other way to
keep sampling pattern the same for Clang and GCC.

[1] https://bugs.llvm.org//show_bug.cgi?id=24063

Cycles: Properly free memory used by KernelGlobals

Previous logic did not free memory used by vector classes
which were storing images, causing memory leaks.

Fix shadow shader to support core profile.

glPushAttrib/Pop change implementation to use a stack

The original implementation (cbd78c81268f) broke depth of field.

Fix denoiser tooltip

Merge branch 'master' into blender2.8

Expose camera stereo settings in Clay engines