BS-JD-303 - Terrain material layers and texture painting MVP #24

New Issue

Rbanh · 2026-06-06T01:48:06-04:00

Rbanh commented

2026-06-06 01:48:06 -04:00

Summary

Add terrain material layers with simple weight painting.

Why

Terrain needs visual material variation beyond a single base material to be useful for level authoring.

Implementation notes

Extend TerrainDesc with material layer refs and weight data.
Add basic paint tool for layer weights.
Render blended material output in editor viewport.
Keep data compact and scene-safe.

Acceptance criteria

Multiple terrain material layers can be assigned.
User can paint layer weights with preview.
Weight data persists and hydrates consistently.
Invalid/missing material refs report clearly.

Tests/docs

Layer serialization and paint operation tests. Update material/terrain docs.

## Summary Add terrain material layers with simple weight painting. ## Why Terrain needs visual material variation beyond a single base material to be useful for level authoring. ## Implementation notes - Extend `TerrainDesc` with material layer refs and weight data. - Add basic paint tool for layer weights. - Render blended material output in editor viewport. - Keep data compact and scene-safe. ## Acceptance criteria - [ ] Multiple terrain material layers can be assigned. - [ ] User can paint layer weights with preview. - [ ] Weight data persists and hydrates consistently. - [ ] Invalid/missing material refs report clearly. ## Tests/docs Layer serialization and paint operation tests. Update material/terrain docs.

Rbanh added this to the M3 - Terrain and physics placement milestone 2026-06-06 01:48:06 -04:00

Rbanh added the

labels 2026-06-06 01:48:06 -04:00

Rbanh referenced this issue

2026-06-06 01:49:27 -04:00

BS-JD-ROADMAP - Jackdaw-inspired editor production roadmap #1

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