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lightcraft/docs
Andrew FrahnandClaude Opus 5.5 88e4188e78 Fix #812: the window's renderer can't kill the start-up (DX12 shader errors)
On some Windows machines FXC fails to compile egui's own shaders on DX12
("The parameter is incorrect. (0x80070057)" in egui_pipeline) and wgpu's
default error handler panicked. Each renderer (DX12, Vulkan, GL, glow) is
now probed with error scopes and a logging error handler before the window
opens; the one that works is remembered; a start that dies leaves a marker
and relaunches with the next renderer. LIGHTCRAFT_GPU_BACKEND=glow added.

Sources: own design.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-11 21:45:02 +11:00
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