Legacy bump presets (brightness, darkness, woodgrain, ...) #19

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opened 2026-09-27 05:23:30 +00:00 by sky_line · 2 comments

sky_line commented

2026-09-27 05:23:30 +00:00

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Legacy bumpmap presets missing. Brightness/darkness need locally generated textures fed to the bindless table. See §2.11.

Source: research/vk_parity_audit.md (static audit, not yet runtime-verified).

Legacy bumpmap presets missing. Brightness/darkness need locally generated textures fed to the bindless table. See §2.11. Source: research/vk_parity_audit.md (static audit, not yet runtime-verified).

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2026-09-27 05:23:30 +00:00

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sky_line commented

2026-10-10 11:53:09 +00:00

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Implemented 2026-10-10 (commits bfced209c7, 2c7008b42e).

Legacy bump presets now render under VK:

Codes 1–17 are gated as LL's use_legacy_bump does: not on glTF faces, faces with their own normal map, alpha-blend, fullbright or HUD.
Brightness/darkness come from the diffuse luminance; Woodgrain, Bark, Bricks and the rest come from the std_bump.ini height textures, using the same 4-tap normal generation LL baked.
Covered in the lit pass, the AO normal pre-pass and RT hits.
Changing Bumpiness re-ingests the face.

Deviations: no fullbright emboss; HUD faces get no bump.

Test:

Woodgrain / Bark / Bricks / Weave on a plain cube in sun.
Brightness vs Darkness inverts the relief.
Switching Bumpiness updates immediately.
Shiny + bump highlights follow the bump.
A face with its own normal map, or a transparent face, ignores Bumpiness.
RT reflections and shadows on a bumped wall look plausible.

Implemented 2026-10-10 (commits bfced209c7, 2c7008b42e). Legacy bump presets now render under VK: - Codes 1–17 are gated as LL's `use_legacy_bump` does: not on glTF faces, faces with their own normal map, alpha-blend, fullbright or HUD. - Brightness/darkness come from the diffuse luminance; Woodgrain, Bark, Bricks and the rest come from the `std_bump.ini` height textures, using the same 4-tap normal generation LL baked. - Covered in the lit pass, the AO normal pre-pass and RT hits. - Changing Bumpiness re-ingests the face. Deviations: no fullbright emboss; HUD faces get no bump. Test: 1. Woodgrain / Bark / Bricks / Weave on a plain cube in sun. 2. Brightness vs Darkness inverts the relief. 3. Switching Bumpiness updates immediately. 4. Shiny + bump highlights follow the bump. 5. A face with its own normal map, or a transparent face, ignores Bumpiness. 6. RT reflections and shadows on a bumped wall look plausible.

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sky_line referenced this issue from a commit

2026-10-10 22:19:25 +00:00

VK: legacy bump presets -- brightness, darkness and the std_bump heightfields (#19)

sky_line referenced this issue from a commit