Blender Git Loki

don't pass particle allocator using BlockStepData

use annotation for properties

remove ParticleSet and ParticleSets abstraction

Buildbot: refactor all build slave code

* Move common code into buildbot_utils.py
* Remove legacy code from removed builders
* Split code into smaller functions

Differential Revision: https://developer.blender.org/D5642

GPencil: Add suport to Poly Curves to Convert to Strokes operator

The Poly curves were not supported when convert curves to grease pencil strokes, but now are supported.

Also, some code cleanup to make it more readable.

Fix possible crash when opening files saved with new file browser open

EEVEE: Remove softness parameters from RNA & UI

Keep it in DNA for backward compatibility

EEVEE: Fix sunlight when sun angle is 180 degrees

EEVEE: Shadow: Add back shadow bias

This is needed in some corner case (shadow acne due to aliasing and depth
disparity). This is a simple bias added to default bias. It should not be
needed most of the time but we leave it at 1 by default.

EEVEE: Fix spotlight shadow optimization

Spot light can be non-uniform and scale in one direction. This fix makes
sure both directions are taken into account before skipping cubemap faces.

UI: Make cascaded shadowmap panel on top of contact shadow

This make more sense as cascade parameters are more important.

EEVEE: Shadow: Add temporal sampling to shadowmaps

If soft shadows is enabled, we randomize the shadowmap sample position
to reduce aliasing artifacts (jagged edge shadows).

Cleanup: EEVEE: Split eevee_lights.c into smaller files

Also have some const correctness fix and some header cleanup.

Eevee: Shadow: Refactor / Cleanup of shadow update

- Replace EEVEE_lightbits by BLI_bitmap
- Replace EEVEE_BoundSphere by BoundSphere
- Support for dupli light shadows
- Detect unecessary update of soft shadows (i.e: moving the view)
- Remove Object references

Eevee: Light: Refactor shadow tagging to allow dupli shadow casters

Dupli objects can now cast shadows.

This also replace the custom lightbits by BLI_bitmap.

Eevee: Shadows: Add texel border on shadow cube for better edge filtering

Unfortunately, this seems to be imprecise on lower cube resolution. But
the result is still most of the time more pleasant than no border filtering.

Eevee: Shadow: Speedup: Only render shadow cube face needed

This reduce the number of face to render to 5 in the case of area lights
and 5 or 1 for spotlights.

Spotlights that have a spot size less than 90 degrees only need 1 face and
are the fastest.

Eevee: Shadows: Make shadowmap follow light orientation

This is in preparation of an optimization

DRW: Add line offset to DRW_STATE_SHADOW_OFFSET

This is needed for hairs.

Eevee: Shadows: Improve contact shadows

Contact shadows now follow the shadowmap direction. This means it matches
the shadowmap blur that is proportional to the light radius.

Moreover this adds a more efficient bias for most contact shadows.