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Embree's local intersection routine was not prepared
for local intersections without per-object BVH.
Now it should be able to handle any kind of local
intersection, such as AO, bevel and SSS.
Differential Revision: https://developer.blender.org/D6602
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Apply clang format as proposed in T53211.
For details on usage and instructions for migrating branches
without conflicts, see:
https://wiki.blender.org/wiki/Tools/ClangFormat
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While we shouldn't have logic in an entry point, and since one should
not be making typos when moving lines around, there is bigger entanglement
issue with BVH host code using kernel function. This is bad violation,
but is tricky to get solved moments before the weekly.
In order to keep things in a (less) broken state than before own cleanup
reverting the changes.
This reverts commit 2bad10be96540ff50a149230d656e599775b3f47.
This reverts commit ddabb21d0584e9874e8e5c62c04abe496ec7334b
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There are some more sanitization which would be cool to be done
in the neighbourhood of those functions, but that could also happen
later.
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There is no way we can keep generic entry point functions easy to
follow if we start adding actual logic in them.
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Note that this is turned off by default and must be enabled at build time with the CMake WITH_CYCLES_EMBREE flag.
Embree must be built as a static library with ray masking turned on, the `make deps` scripts have been updated accordingly.
There, Embree is off by default too and must be enabled with the WITH_EMBREE flag.
Using Embree allows for much faster rendering of deformation motion blur while reducing the memory footprint.
TODO: GPU implementation, deduplication of data, leveraging more of Embrees features (e.g. tessellation cache).
Differential Revision: https://developer.blender.org/D3682
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