shader_scene_depth_uPv( cam->mtx.pv );
shader_scene_depth_uPvmPrev( cam->mtx_prev.pv );
shader_scene_depth_uMdl( identity_matrix );
shader_scene_depth_uPv( cam->mtx.pv );
shader_scene_depth_uPvmPrev( cam->mtx_prev.pv );
shader_scene_depth_uMdl( identity_matrix );