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| author | skal <pascal.massimino@gmail.com> | 2026-03-22 16:23:25 +0100 |
|---|---|---|
| committer | skal <pascal.massimino@gmail.com> | 2026-03-22 16:23:25 +0100 |
| commit | b3c69d188943269769b7fee305f135faadcc60f2 (patch) | |
| tree | 34260ef2434652557e27443d665d2b180a2677cb /cnn_v3/docs/HOWTO.md | |
| parent | 159ca2ca19345515cdfebed9fd88646730492cd2 (diff) | |
fix(cnn_v3/tools): remove unused sampler binding from FULL_PACK_SHADER
WebGPU auto-reflects the BGL from the shader; a declared-but-unused sampler
binding is omitted from the layout, causing CreateBindGroup to reject it.
Removed binding 6 (sampler) entirely — all reads use textureLoad(). Renumbered
f0/f1 from 7/8 to 6/7 to match.
Diffstat (limited to 'cnn_v3/docs/HOWTO.md')
| -rw-r--r-- | cnn_v3/docs/HOWTO.md | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/cnn_v3/docs/HOWTO.md b/cnn_v3/docs/HOWTO.md index c6f306b..08979e7 100644 --- a/cnn_v3/docs/HOWTO.md +++ b/cnn_v3/docs/HOWTO.md @@ -444,9 +444,10 @@ WebGPU compute shader (`@workgroup_size(8,8)`) with 9 bindings: | Binding | Resource | Format | |---------|----------|--------| | 0–5 | albedo, normal, depth, matid, shadow, transp | `texture_2d<f32>` (rgba8unorm, R channel for single-channel maps) | -| 6 | linear sampler | `sampler` | -| 7 | feat_tex0 output | `texture_storage_2d<rgba32uint,write>` | -| 8 | feat_tex1 output | `texture_storage_2d<rgba32uint,write>` | +| 6 | feat_tex0 output | `texture_storage_2d<rgba32uint,write>` | +| 7 | feat_tex1 output | `texture_storage_2d<rgba32uint,write>` | + +No sampler — all reads use `textureLoad()` (integer texel coordinates). Packs channels identically to `gbuf_pack.wgsl`: - `feat_tex0`: `pack2x16float(alb.rg)`, `pack2x16float(alb.b, nrm.x)`, `pack2x16float(nrm.y, depth)`, `pack2x16float(dzdx, dzdy)` |