Function disposeMaterial

src/components/material.js:253–265

* Dispose of material from memory and unsubscribe material from scene updates like fog.

(material, system)

 * Dispose of material from memory and unsubscribe material from scene updates like fog.
 */
function disposeMaterial (material, system) {
  material.dispose();
  system.unregisterMaterial(material);

  // Dispose textures on this material
  Object.keys(material)
    .filter(function (propName) {
      return material[propName] && material[propName].isTexture;
    })
    .forEach(function (mapName) {
      material[mapName].dispose();
    });
}