3D == .. toctree:: :maxdepth: 1 :name: toc-learn-features-3d introduction_to_3d using_transforms 3d_rendering_limitations spatial_material lights_and_shadows reflection_probes gi_probes baked_lightmaps environment_and_post_processing high_dynamic_range using_gridmaps using_multi_mesh_instance csg_tools procedural_geometry/index occluders portals/index 3d_text