Blender Git Loki

alembic: cleanup, remove debug print

alembic: skip updating constant objects

cleanup, move auxilliary classes out of AlembicObject

alembic: accumulate transformation matrices while walking the hierarchy

Besides being inefficient, the previous code was missing some data. Also
properly interpolate the matrices when in-between samples.

alembic : fix some crashes related to time sampling

reuse time sampling from alembic library to lookup the data arrays

alembic : fix fps not taking into account base

improvements to the BVH packing for single objects

fix for bad merge

format

import changes from optimization branch

Merge branch 'master' into cycles_procedural_api

fix missing params update in the scene BVH

a few more optimizations in OptiX

- avoid recreating temporary buffers for every builds
- avoid looking up the available memory when refitting, helps a lot in
files with lots of low-poly objects
- only allocate enough memory for the current build (build vs update)

add time to send data to data transfer report

optimise BVH packing a bit

alembic: fix missing update when changing frames

add a tag_update method on the procedural

bring back optix optimisation, add some timing information

alembic: cleanup

alembic: refactor data storage, add support for animated transforms