Blender Git Loki

Object Mode Engine: Optimize outline passes.

Group texture fetches to hide latency. 3.2ms -> 2.2ms (constant time improvement, not depending on scene complexity)

Could optimize further with textureGather (require OpenGL 4.0).

Eevee: Refraction: Make it available for opaque materials.

Theses Materials are rendered after the SSR pass.
The only difference with previous method is that they have a depth prepass (less overdraw) and are not sorted.

DRW: Indent profiler timings.

Eevee: Fix AO not working.

Eevee: Add Screen Space Refraction.

For the moment the only way to enable this is to:
- enable Screen Space REFLECTIONS.
- enable Screen Space Refraction in the SSR parameters.
- enable Screen Space Refraction in the material tab.

Eevee: Refraction: Fix border artifacts.

Eevee: SSR: Fix cone footprint estimation.

Eevee: SSR: Blur Mipmaps more.

Cost is negligeable (Only 0.02 ms more) and it improve stability.

Eevee: SSR: Refine Raytrace Algorithm.

We track the previous ray position offseted by the thickness. If the sampled depth is between this value and the current ray position then we have a hit.
This fixes rays that are almost colinear with the view vector. Thickness is now only important for rays that are comming back to the camera.

As a consequence, this simplify a lot of things.

Also include some refactor.

Eevee: Correct Mipmap texel alignment.

Since we are working with non power of 2 textures, the mipmap level UV does not line up perfectly.
This resulted in skewed filtering and bad sampling of the min/max depth buffer.

Eevee: Add Refraction via probes.

Eevee: Small code codestyle and fixes.

Rename get_specular_dominant_dir to get_specular_reflection_dominant_dir.
Add Zero length N check everywhere.

Eevee: LUT generation.

We generate a 3D lut to precompute the btdf intensity.
I decided to use a 64*64*16 (N dot V, ior, roughness) because the btdf varies less with roughness than with IOR.
We also remap the ior to better use the space in the LUT.

Eevee: Add precomputed BTDF LUT.

Tweak and extend POV syntax hilghting.

*Changed categories of some keywords
*reordered some longer keywords that didn't appear
*Activated another color (reserved builtins) by Leonid
*added some HGPOV and UberPOV missing keywords

Patch by Maurice Raybaud (@mauriceraybaud). Thanks to Leonid for additions, feedback and Linux testing.
Related diffs: D2754 and D2755.

While not a regression, this is new feature and would be nice to have it
backported to final 2.79.

Cleanup: make seq dupli scene operands' names match global copying convention.

Followup to rB1037b90cb831b, forgot to save that file :(

Cleanup: de-duplicate makefile OS checks

Manipulator: add compositor corner-pin widgets

Cleanup: make seq dupli scene operands' names match global copying convention.

Fix T52332: crash when duplicating sequencer strips.

Bug introduced in recent ID copying refactor.

This commit basically sanitizes seq strip copying behavior, by making
destination scene pointer mandatory (and source one a const one).
Nothing then prevents you from using same pointer as source and
destination!