@polygonjs/polygonjs/dist/src/engine/nodes/gl/Luminance.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
import { TypedGlNode } from "./_Base";
import { GlConnectionPointType, GlConnectionPoint } from "../utils/io/connections/Gl";
import { ThreeToGl } from "../../../core/ThreeToGl";
import FitMethods from "./gl/fit.glsl";
import { FunctionGLDefinition } from "./utils/GLDefinition";
const OUTPUT_NAME = "lum";
import { NodeParamsConfig, ParamConfig } from "../utils/params/ParamsConfig";
class LuminanceGlParamsConfig extends NodeParamsConfig {
  constructor() {
    super(...arguments);
    this.color = ParamConfig.VECTOR3([1, 1, 1]);
  }
}
const ParamsConfig = new LuminanceGlParamsConfig();
export class LuminanceGlNode extends TypedGlNode {
  constructor() {
    super(...arguments);
    this.paramsConfig = ParamsConfig;
  }
  static type() {
    return "luminance";
  }
  initializeNode() {
    super.initializeNode();
    this.io.outputs.setNamedOutputConnectionPoints([
      new GlConnectionPoint(OUTPUT_NAME, GlConnectionPointType.FLOAT)
    ]);
  }
  setLines(shadersCollectionController) {
    const value = ThreeToGl.vector3(this.variableForInputParam(this.p.color));
    const lum = this.glVarName(OUTPUT_NAME);
    const bodyLine = `float ${lum} = luminance(${value})`;
    shadersCollectionController.addBodyLines(this, [bodyLine]);
    shadersCollectionController.addDefinitions(this, [new FunctionGLDefinition(this, FitMethods)]);
  }
}