bevy/crates/bevy_pbr
Jan Hohenheim ad5d790e9e
Fix WebGL not rendering StandardMaterial (#12110)
# Objective

- Fixes #12081

## Solution

Passing the `Affine2` as a neatly packed `mat3x2` breaks WebGL with
`drawElementsInstanced: Buffer for uniform block is smaller than
UNIFORM_BLOCK_DATA_SIZE.`
I fixed this by using a `mat3x3` instead.
Alternative solutions that come to mind:
- Pass in a `mat3x2` on non-webgl targets and a `mat3x3` otherwise. I
guess I could use `#ifdef SIXTEEN_BYTE_ALIGNMENT` for this, but it
doesn't seem quite right? This would be more efficient, but decrease
code quality.
- Do something about `UNIFORM_BLOCK_DATA_SIZE`. I don't know how, so I'd
need some guidance here.

@superdump let me know if you'd like me to implement other variants.
Otherwise, I vote for merging this as a quick fix for `main` and then
improving the packing in subsequent PRs :)

## Additional notes

Ideally we should merge this before @JMS55 rebases #10164 so that they
don't have to rebase everything a second time.
2024-02-25 22:42:28 +00:00
..
src Fix WebGL not rendering StandardMaterial (#12110) 2024-02-25 22:42:28 +00:00
Cargo.toml Cleanup: Use Parallel in extract_meshes (#12084) 2024-02-25 19:06:54 +00:00