[Bf-blender-cvs] [e8f8c13d4b7] tmp-pointcloud-render: PointCloud: Initial rendering support for Workbench

[Clément Foucault]

Commit: e8f8c13d4b76ba587ef7cf33370b286d4fbd36bc
Author: Clément Foucault
Date:   Wed Jul 15 14:18:30 2020 +0200
Branches: tmp-pointcloud-render
https://developer.blender.org/rBe8f8c13d4b76ba587ef7cf33370b286d4fbd36bc

PointCloud: Initial rendering support for Workbench

Also includes outline overlays. Removes the temp overlay drawing

We make the geometry follow camera like billboards this uses less
geometry. Currently we use half octahedron for now. Goal would be
to use icospheres.

This patch also optimize the case when pointcloud has uniform radius.
However we should premultiply the radius prop by the default radius
beforehand to avoid a multiplication on CPU.

Differential Revision: https://developer.blender.org/D8301

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