Claude e2a47495eb GPU: an effect kernel the shader compiler rejects no longer turns the GPU compositor off (#613) ...

GpuContext::new built every compute pipeline up front and failed as a
whole when one didn't build. On DirectX 12, FXC (wgpu's default D3D shader
compiler) aborts on the `pointwise` effect kernel, so the whole app fell
back to CPU compositing.

The compositor's own kernels are still required, but the effect kernels
(`pointwise`, the blur/glow/shadow passes and every fx_* kernel) are now
optional: one that fails to build is logged and listed
(GpuContext::unavailable_kernels), and a GPU effect chain that dispatches a
missing kernel reports it (Enc::take_missing) so those effects render on
the CPU while everything else stays on the GPU.

This does not make FXC accept `pointwise` (that needs a Windows/FXC box to
bisect); it limits the damage to the effects using it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QiAJeFttZp83Fh7YuzAR5f

2026-10-10 21:17:18 +00:00

..

src

GPU: an effect kernel the shader compiler rejects no longer turns the GPU compositor off (#613)

2026-10-10 21:17:18 +00:00

Cargo.toml

fix: contain GPU initialization and retire failed readbacks

2026-10-06 16:40:12 -05:00