That kind of implicit includes should really only be done when totally,
absolutely necessary, and ideally only with rather simple 'second-level'
headers.
Otherwise not being explicit with includes always end up biting in
unexpected ways...
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
This is needed because some RNA functions differentiate a NULL 'char *'
argument from an empty string.
Previously a NULL argument could be passed when the C definition
defined the default as NULL and the argument wasn't passed
which is a fairly hidden way of handling things.
Now strings use `PROP_NEVER_NULL` by default
which can be cleared for function arguments that allow None -> NULL.
`mathutils_array_parse` is meant to parse 1d arrays of numbers.
Using matrices internal memory layout is confusing since
mathutils matrices are exposed as row major.
Also, the matrix shape wasn't checked for.
Callers that want to handle matrices should check for them explicitly.
Allow to pass in single numbers, sequences and mathutils.* types into `shader.uniform_float`.
Reviewers: mano-wii
Differential Revision: https://developer.blender.org/D3820
Only tag relations update when new f-curve was allocated. This solves
possible too slow keyframe insertion when doing character animation,
but still does proper relation update when new ID component became
animated.
