itowns/lib/Renderer/CommonMaterial.js

A JS/WebGL framework for 3D geospatial data visualization

import * as THREE from 'three';
export default {
  setDefineMapping(object, PROPERTY, mapping) {
    Object.keys(mapping).forEach(key => {
      object.defines[`${PROPERTY}_${key}`] = mapping[key];
    });
  },
  setDefineProperty(object, property, PROPERTY, initValue) {
    object.defines[PROPERTY] = initValue;
    Object.defineProperty(object, property, {
      get: () => object.defines[PROPERTY],
      set: value => {
        if (object.defines[PROPERTY] != value) {
          object.defines[PROPERTY] = value;
          object.needsUpdate = true;
        }
      }
    });
  },
  setUniformProperty(object, property, initValue) {
    object.uniforms[property] = new THREE.Uniform(initValue);
    Object.defineProperty(object, property, {
      get: () => object.uniforms[property].value,
      set: value => {
        if (object.uniforms[property].value != value) {
          object.uniforms[property].value = value;
        }
      }
    });
  }
};