fix: balanced shadow bias — no acne, no peter-panning

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- Fragment bias: 0.08 + 0.15 * (1 - NdotL) — smaller base, moderate slope
  (was 0.3 + 0.5 — too much → peter-panning, shadows detached from objects)
- vkCmdSetDepthBias: 1.75/0/2.5 (was 2.5/0/3.5 — too aggressive)
- Removed early exit logic — was causing hard shadow edges
- Always run 16-tap PCF for consistent soft shadow quality
- Smaller sample radius: clamp(0.015 * dist/20, 0.003, 0.05)

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This commit is contained in:

emil28092005

2026-06-18 21:40:43 +03:00

parent 23b38f8f17

commit 2454af1c89

3 changed files with 6 additions and 17 deletions

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src/Engine.Graphics.Vulkan/Shaders/triangle.frag.spv

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