- graph: tighten CPU rasterizer near-plane clip (NEAR_CLIP_Z=0.05) + post-clip W guard + rasterizer maxCoord 2× screen — fixes "shooting off" triangles near the camera. - cam-doll: opt-in grounded physics (runSpeed, jumpVelocity, gravity, eyeHeight, crouchEyeHeight, groundBounds, deathFloorY). Space jumps, shift crouches (clamped to floor), gravity + floor clamp run in sim. defocus event drops all held keys. Third-person view with lazy follow via setThirdPerson/toggleThirdPerson; render camera lerps behind the player. Death-floor clamp stops the frozen player on the lava. - disk: fps system pieces can now export fpsOpts to configure CamDoll. - arena: fork dialled for Quake feel (FOV 90, run 10 u/s, gravity 50). Donut lava floor with animated stripe colours, bright platform edge, shadow symbol per physics state, plumb line to feet, walk-over tile trail + crosshair-raycast hover highlight, wireframe feet + arms that yaw with the camera, YOU DIED overlay + tap-to-respawn, POV indicator + FOV/RUN/GROUND labels in HUD. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>