entailz e2de688324 Replace the blit cascade in record_blur with shader-based dual-Kawase, ... matching the OpenGL backend's algorithm. The blit cascade was a much weaker filter that degenerated badly on thin surfaces. The new path adds blur.vert / blur_down.frag (5-tap) / blur_up.frag (8-tap), a single-binding blur descriptor set layout, and per-format down/up pipelines. BLUR_SCRATCH_USAGE gains COLOR_ATTACHMENT so the scratch images can be both sampled and rendered into. Cache hit fast path and masked composite are unchanged.		2026-05-20 18:44:47 -07:00
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hash.rs	Replace the blit cascade in record_blur with shader-based dual-Kawase,	2026-05-20 18:44:47 -07:00