- mesh_draw: removed redundant ib null check - game_test: cubes moved to z=0.3-0.8 (within near/far range) - raw3d_test verified 3D rendering works correctly
- mesh_draw: removed redundant ib null check - game_test: cubes moved to z=0.3-0.8 (within near/far range) - raw3d_test verified 3D rendering works correctly