Draw a type-appropriate wireframe gizmo for every UsdLux light in the stage,
mirroring the existing camera-wireframe overlay (dedicated VAO/VBO reusing the
bbox shader, drawn on top with depth-test off).
Shapes, built in the light's local space and pushed through its local-to-world
transform:
- SphereLight 3 orthogonal circles (radius); axis-cross when treatAsPoint
- RectLight width x height rectangle + emission direction line
- DiskLight circle + direction line
- CylinderLight two end-cap circles + connectors (radius/length)
- DistantLight sun disc + parallel rays
- DomeLight 3 large display-scaled circles
Selected lights draw accent orange, others warm yellow.
Verified by creating a SphereLight (3-circle sphere) and a RectLight
(rectangle) in-app: distinct shapes, correct selected/deselected colours,
gizmos visible over geometry.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
indigo
2649fe814c