This extension dumps out some interesting vendor-specific information
to the log, which could be useful for debugging. Interestingly, some
of Android demos produce this output on Pixel 3:
KHR_debug: EsxBufferObject::Map - Ignoring EsxBufferMapUnsyncedBit
Enabled for debug builds only.
This simple Kotlin app projects a live feed on the side of a cube.
It looks very similar to the `lit-cube` demo but there is a new Kotlin
class called `CameraHelper` that creates Camera2 objects, starts
the capture session, creates the Filament texture, etc.
For now, this app uses SurfaceTexture. This is a starting point and
provides a testing ground for tentative improvements to our Stream API.
- we use by-value parameters in some places, which helps the compiler
(not sure why, but assuming references can be aliased and the
compiler is cautious about that).
This helps matrix multiplies (which is almost never inlined) and
transpose (but that's almost always inlined and merged with
something else, so the gain here is not completely real)
- remove support for matrices-of-matrices because this wasn't complete
anyways.
- improve matrix * scalar by inlining the loop manually instead of
going through *=, this saves some extra writes.
We were not checking Camera's preconditions properly -- we assumed that
near < 1/1024 meant "near == 0".
Now we check preconditions properly and revert to the same hardcoded
default if they're not met -- doesn't matter what the default is,
it's there only to avoid NaNs and Infs elsewhere -- rendering will
be bogus eitherway.
Fixes#1766
Sparse accessors are easy to punt gracefully, we can emit a warning
and instead use the dense "base" data.
Also, after cgltf support for this lands, we will need to apply sparse
data in ResourceLoader, so this adds a bit of plumbing to prep for that.
Relates to #1727.
