@openhps/core/dist/esm/three/materials/nodes/MeshMatcapNodeMaterial.js

Open Hybrid Positioning System - Core component

import NodeMaterial from './NodeMaterial.js';
import { materialReference } from '../../nodes/accessors/MaterialReferenceNode.js';
import { diffuseColor } from '../../nodes/core/PropertyNode.js';
import { vec3 } from '../../nodes/tsl/TSLBase.js';
import { mix } from '../../nodes/math/MathNode.js';
import { matcapUV } from '../../nodes/utils/MatcapUVNode.js';
import { MeshMatcapMaterial } from '../MeshMatcapMaterial.js';
const _defaultValues = /*@__PURE__*/new MeshMatcapMaterial();

/**
 * Node material version of {@link MeshMatcapMaterial}.
 *
 * @augments NodeMaterial
 */
class MeshMatcapNodeMaterial extends NodeMaterial {
  static get type() {
    return 'MeshMatcapNodeMaterial';
  }

  /**
   * Constructs a new mesh normal node material.
   *
   * @param {Object} [parameters] - The configuration parameter.
   */
  constructor(parameters) {
    super();

    /**
     * This flag can be used for type testing.
     *
     * @type {boolean}
     * @readonly
     * @default true
     */
    this.isMeshMatcapNodeMaterial = true;
    this.setDefaultValues(_defaultValues);
    this.setValues(parameters);
  }

  /**
   * Setups the matcap specific node variables.
   *
   * @param {NodeBuilder} builder - The current node builder.
   */
  setupVariants(builder) {
    const uv = matcapUV;
    let matcapColor;
    if (builder.material.matcap) {
      matcapColor = materialReference('matcap', 'texture').context({
        getUV: () => uv
      });
    } else {
      matcapColor = vec3(mix(0.2, 0.8, uv.y)); // default if matcap is missing
    }
    diffuseColor.rgb.mulAssign(matcapColor.rgb);
  }
}
export default MeshMatcapNodeMaterial;