+ SCM
+ irr_scene_ISceneNode_setMaterialFlag (SCM wrapped_scene_node,
+ SCM flag,
+ SCM newvalue)
+ {
+ irr::scene::ISceneNode* node;
+
+ if (animated_mesh_scene_node_p (wrapped_scene_node))
+ {
+ node = (irr::scene::ISceneNode*)unwrap_animated_mesh_scene_node (wrapped_scene_node);
+ }
+ else if (mesh_scene_node_p (wrapped_scene_node))
+ {
+ node = (irr::scene::ISceneNode*)unwrap_mesh_scene_node (wrapped_scene_node);
+ }
+ else if (scene_node_p (wrapped_scene_node))
+ {
+ node = unwrap_scene_node (wrapped_scene_node);
+ }
+ else
+ {
+ scm_error (scm_arg_type_key, NULL, "Cannot set material flag to object: ~S",
+ scm_list_1 (wrapped_scene_node), scm_list_1 (wrapped_scene_node));
+ }
+
+ node->setMaterialFlag (scm_to_material_flag (flag),
+ scm_to_bool (newvalue));
+ return SCM_UNSPECIFIED;
+ }
+