32 lines
1.7 KiB
Markdown
32 lines
1.7 KiB
Markdown
# Physics Placement Evaluation
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> **Evidence record — not current product guidance.** Use the [documentation index](../../../README.md) for current behavior and architecture.
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Date: 2026-07-12
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The native Wayland editor is shown with the 2026-07-12 revision of
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`assets/levels/physics_placement_showcase.scn.ron`. At that revision, Placement Prop A, B, and C were
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multi-selected and released from three different heights through the hand/down-arrow action in the
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existing horizontal viewport toolbar. The fixture now exposes those stable actor IDs as Placement
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Cuboid, Placement Sphere, and Placement Capsule; its distinct-shape rerun is tracked by the
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[sample-pack evaluation](../sample-regression-pack/).
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## Acceptance
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- In the recorded revision, all three props used hydrated Avian cuboid colliders and settled on
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Placement Floor after 1.5 simulated seconds.
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- During preview the HUD reported selection count, simulated time, and Settled state; transform
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gizmos and viewport picking did not compete with the modal tool.
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- Escape restored every starting transform and left history empty.
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- A second run committed with Enter as exactly one `Undo: Move Selection` entry.
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- Ctrl+Z restored all three elevated starting transforms; Ctrl+Y restored the settled transforms.
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- Opening the fixture immediately after the terrain showcase no longer panicked on a stale
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generated terrain-material binding; the scene-switch regression is covered in
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`blacksite_surface`.
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- The runtime log contained no physics-placement, scene-load, render-pipeline, or GPU validation
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error after the stale-binding fix.
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Packaged-runtime tests remain intentionally deferred by project-owner request.
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