The CSpeedTreeRT stand-in now returns the collision objects stored in the .spt (12000 section: spheres and cylinders) instead of one fixed trunk cylinder, and takes leaf texture rects from the 10000 section instead of hand-picked atlas rects (trees without leaf maps use the frond rect). SpeedGrass/BoundaryShapeManager are N_A (no 40250 caller). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>