Release Embree v3.7.0 Release · RenderKit/embree

Added quaternion motion blur for correct interpolation of rotational transformations.
Fixed wrong bounding calculations when a motion blurred instance di
instantiate a motion blurred scene.
In robust mode the depth test consistently uses tnear <= t <= tfar now in order
to robustly continue traversal at a previous hit point
in a way that guarentees reaching all hits, even hits at the same place.
Fixed depth test in robust mode to be precise at tnear and tfar.
Added next_hit tutorial to demonstrate robustly collecting all hits
along a ray using multiple ray queries.
Implemented robust mode for curves. This has a small performance impact but
fixes bounding problems with flat curves.
Implemented issue with motion blur builder where number of time segments
for SAH heuristic were counted wrong due to some numerical issues.
Fixed an accuracy issue with rendering very short fat curves.
rtcCommitScene can now get called during rendering from multiple threads
to lazily build geometry. When TBB is used this causes a much lower overhead
than using rtcJoinCommitScene.
Geometries can now get attached to multiple scenes at the same time, which
simplifies mapping general scene graphs to API.
Updated to TBB 2019.9 for release builds.
Fixed a bug in the BVH builder for Grid geometries.
Added macOS Catalina support to Embree releases.

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