- PlayerCharacterController: latch the wall-strafe sign once at strafe
start instead of re-deriving it from the camera every frame, which
flipped at the 90-degree point while circling a cylinder and caused a
back-and-forth lock. Flat walls stay bit-identical; reset on enter/exit.
- MeshPainter.Pick: dispatch terrain hits to a splat-layer blend (full
PBR channels), terrain trees / grass / sky to rendered screen-color,
keeping texel-accurate picks for the paint mesh and foreign materials.
- Includes Unity auto-reserialization of SampleScene and three Supercyan
pack assets (URP material upgrades, skybox/lighting) from the import.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>