Blender Git Loki

Cycles: Let OIIO do the sharing of the texture cache, add wider differentials for velvet BSDF

Cycles: Added dNdu to kernel globals on CPU, using it for more accurate ray differentials in specular and glossy reflection

Cycles: ImageTexture node now has dx/dy inputs for offset texture coordinates, being filled out with a hacky shader node duplication a la bump_dx/bump_dy

Cycles: Widened differentials for diffuse and glossy BSDFs for better texture cache performance

Cycles: Fixed texture cache build in Visual Studio - need to tell OIIO to disable AVX

Cycles: removed ?.? at the end of texture cache help text

Cycles: Better quality filtering for .tx mip maps

Cycles: Use texture cache only for CPU devices

Cycles: resetting texture cache stats after use

Cycles: made OSL shading use .tx files where available, added a mutex to the kernel texture name array

Cycles: a handful of fixes for texture caching

Cycles: first additions for OIIO texture caching

* TextureSystem options are exposed in the UI
* Automatic generation of .tx files is optional
* Texture lookups do not use differentials or mip maps yet, so performance is pretty bad

Merge branch 'blender2.8' into greasepencil-object

UI: Change to only selected icon

Dopesheet jump frame in active layer

This new function allows to enable the frame jump only in active layer and not in all visible layer.

This was a request of Hero open movie artist team.

Merge branch 'blender2.8' into topbar

small fix for inflow levelset

clear after initial frame to avoid sampling snd parts twice

updated manta pp files

Merge branch 'blender2.8' into greasepencil-object

Cycles: Split shader_eval out of the kernel_lamp_emission kernel

With this kernels for BWM and classroom scenes are building in half the
time as master. Render times are 1% faster as well.