Blender Git Loki

EEVEE: Remove light specular during baking & fix bounce light

EEVEE: LightProbe: Fix grid display and deduplicate code

EEVEE: LightProbe: Fix light cache display visibility without overlays

EEVEE: LightProbe: Fix wrong shading on other cube faces

Use modified viewmat instead of modified winmat. Too much code
assume conventional winmat.

EEVEE: LightProbe: Fix level bias and visibility filtering

EEVEE: Fix irradiance baking sample order

EEVEE: Fix irradiance smoothing wrong

EEVEE: LightCache: Port baking

Some things differs from old implementation.
- Object visibility is filtered correctly without using a visibility
callback (which is to be removed).

The implementation is also more high level using less low level tricks.

A dedicated LightProbeView is created for each lightprobe cubeface to
render using all pipeline (deferred and forward).

There is still a few things not working.

EEVEE: LightCache: Port back cache Display

Nothing significantly different appart from codestyle.

BLI: float3: add division operator between 2 float3

EEVEE: Fix background transparent

Alpha of main output is transparency and not opacity.

EEVEE: LightProbe: Finish loading and rendering of lightcache

Starting to port lightcache.c to c++.

EEVEE: Lightprobe: Add back lightprobe rendering support for world.

Only world probe is supported for now.

The new implementation diverge from the original by randomly
selecting one lightprobe instead of sampling them all.
This speeds-up rendering a bit.

EEVEE: Fix crash cause by world material without attributes

EEVEE: Lightprobe: Port back lightprobe filtering

No much change appart from code organization and structure.

DRW: Add DRW_view_frustum_bsphere_get

DRW: Increase shader library max supported lib count

DRW: Add DRW_view_get_active

EEVEE: Lightprobe: Add simple world probe rendering and downsampling

EEVEE: Add back world nodetree support

Only for background for now.

Support is now not using defines and just use the correct globals and
uniforms to keep the same values as before.