Blacksite/docs/editor/evaluations/terrain-sculpt-tools/README.md
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Add terrain sculpt stroke tools
2026-07-12 19:50:47 -04:00

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# Terrain Sculpt Tools Acceptance
Issue: Gitea `#23`
Scope: native Wayland debug editor; packaged acceptance remains deferred by project-owner direction.
## Live Evidence
![Raise stroke with terrain-following footprint and horizontal sculpt controls](terrain-sculpt-raise-stroke.png)
The committed terrain showcase was selected in Forward rendering. Enabling the mountains tool kept
the actor selected, removed the transform gizmo, expanded Raise/Lower/Flatten/Smooth/Noise plus
radius/strength controls inside the existing horizontal viewport toolbar, and displayed the modal
cancel/undo hints. A dragged Raise stroke visibly changed the generated terrain while the footprint
tracked the sampled surface. Release produced exactly `Undo: Raise Terrain`; no transform `Move`
history entry was created.
Escape/right-click restoration, deterministic brush math, exact vertical-ray sampling, multi-dab
stroke grouping, and sculpt-time gizmo exclusion are covered by focused tests. The live pass also
exposed and corrected toolbar click-through into raw mesh picking before this evidence was captured.
## Source Verification
- `cargo fmt --all -- --check`
- `cargo check -p editor --all-targets`
- `cargo clippy -p editor --all-targets -- -D warnings`
- six focused terrain-sculpt/input-ownership tests
- `git diff --check`
The canonical fixture remains `assets/levels/terrain_authoring_showcase.scn.ron`; no QA-only scene or
project setting is retained.