Blender Git Loki

Merge remote-tracking branch 'origin/master' into temp-cycles-denoising

Cycles Denoising: Remove unused functions in the buffer code

Cycles Denoising: Remove Render Pass changes

Cycles Denoising: Remove post-processing denoising code from the Render API

This reverts commits e001dbbcc479, 94fa941f7f65, e7bf6c67b432, e549000b3914, 58619096a5cd, 3bcafb6dc48d, 0d78ac4199d9, c167e5d72378.

Cycles: Refactor device split kernel code

Moved all split kernel related stuff out of `Device` as it doesnt belong
there. Those functions are now apart of `DeviceSplitKernel` which now
must be implemented for each device type supporting the split kernel. No
functional changes.

Cycles: Move kgbuffer allocation out of split kernel code

Allocating the buffer is the job of the device implementation, not the split
kernel, so makes more sense to separate that code.

Fix uninitialized values

Cycles Denoising: Rename variables for consistency and move them out of KernelData

Cycles Denoising: Remove denoising-after-rendering functions

Cycles Denoising: Remove standalone denoising Python API function

OpenGL immediate mode: drawarmature.c

Changed the color function to output a float[4] to use with shaders.
Temporary leaving the UI_ThemeColor/glColor function.
Porting draw_bone_octahedral (wire) to Batch API.

Merge branch 'blender2.8' into workspaces

Gawain : Added Batch_init()

to init a batch without allocating memory

Added support for correct Oculus DK1 and DK2 shaders with additional Generic shader (which could/should work for most other HMD's)
Shaders can be changed in options so you can pick a shader that matches your device

OpenGL immediate mode: interface_draw.c (end)

Eradicate leftover legacy functions.
Fix a crash with histogram resolution.

Cycles Denoising: Remove support for cross-frame denoising

Cycles Denoising: Revert all changes to Cycles Standalone

Cycles Denoising: Enable floating point exceptions in filter code if enabled in CMake

OpenGL immediate mode: interface_draw.c (cont)

ui_draw_but_TRACKPREVIEW

Changed stipple shader usage to a bunch of GL_LINES with flat color

Fixed small oops with copy paste