Blender Git Loki

attempt to read normals

add support for RGBA attributes

fix data type for vertex colors

cleanup, format

read UV attributes

prefer using AttributeElement over AttributeStandard

cleaunp

cleanup, const

cleanup, avoid using "auto"

first pass at reading arbitrary attributes

For now, we only read vertex colors.

Revert "remove alembic code"

This reverts commit cae7e63fca81f9fd1bd9110a879b1e1309ae2d4c.

further cleanup, remove unnecessary friends from Mesh

fix compile errors with GTEST and Optix

Merge branch 'master' into cycles_api_review

run clang format

remove alembic code

do not clear hair arrays when synchronizing

fix for wrong assert

fix for missing socket on the texture node

cache the alembic objects, instead of retraversing the archive each
frame