three-stdlib/postprocessing/EffectComposer.cjs

stand-alone library of threejs examples

"use strict";
var __defProp = Object.defineProperty;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __publicField = (obj, key, value) => {
  __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
  return value;
};
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const THREE = require("three");
const CopyShader = require("../shaders/CopyShader.cjs");
const ShaderPass = require("./ShaderPass.cjs");
const MaskPass = require("./MaskPass.cjs");
class EffectComposer {
  constructor(renderer, renderTarget) {
    __publicField(this, "renderer");
    __publicField(this, "_pixelRatio");
    __publicField(this, "_width");
    __publicField(this, "_height");
    __publicField(this, "renderTarget1");
    __publicField(this, "renderTarget2");
    __publicField(this, "writeBuffer");
    __publicField(this, "readBuffer");
    __publicField(this, "renderToScreen");
    __publicField(this, "passes", []);
    __publicField(this, "copyPass");
    __publicField(this, "clock");
    this.renderer = renderer;
    if (renderTarget === void 0) {
      const parameters = {
        minFilter: THREE.LinearFilter,
        magFilter: THREE.LinearFilter,
        format: THREE.RGBAFormat
      };
      const size = renderer.getSize(new THREE.Vector2());
      this._pixelRatio = renderer.getPixelRatio();
      this._width = size.width;
      this._height = size.height;
      renderTarget = new THREE.WebGLRenderTarget(
        this._width * this._pixelRatio,
        this._height * this._pixelRatio,
        parameters
      );
      renderTarget.texture.name = "EffectComposer.rt1";
    } else {
      this._pixelRatio = 1;
      this._width = renderTarget.width;
      this._height = renderTarget.height;
    }
    this.renderTarget1 = renderTarget;
    this.renderTarget2 = renderTarget.clone();
    this.renderTarget2.texture.name = "EffectComposer.rt2";
    this.writeBuffer = this.renderTarget1;
    this.readBuffer = this.renderTarget2;
    this.renderToScreen = true;
    if (CopyShader.CopyShader === void 0) {
      console.error("THREE.EffectComposer relies on CopyShader");
    }
    if (ShaderPass.ShaderPass === void 0) {
      console.error("THREE.EffectComposer relies on ShaderPass");
    }
    this.copyPass = new ShaderPass.ShaderPass(CopyShader.CopyShader);
    this.copyPass.material.blending = THREE.NoBlending;
    this.clock = new THREE.Clock();
  }
  swapBuffers() {
    const tmp = this.readBuffer;
    this.readBuffer = this.writeBuffer;
    this.writeBuffer = tmp;
  }
  addPass(pass) {
    this.passes.push(pass);
    pass.setSize(this._width * this._pixelRatio, this._height * this._pixelRatio);
  }
  insertPass(pass, index) {
    this.passes.splice(index, 0, pass);
    pass.setSize(this._width * this._pixelRatio, this._height * this._pixelRatio);
  }
  removePass(pass) {
    const index = this.passes.indexOf(pass);
    if (index !== -1) {
      this.passes.splice(index, 1);
    }
  }
  isLastEnabledPass(passIndex) {
    for (let i = passIndex + 1; i < this.passes.length; i++) {
      if (this.passes[i].enabled) {
        return false;
      }
    }
    return true;
  }
  render(deltaTime) {
    if (deltaTime === void 0) {
      deltaTime = this.clock.getDelta();
    }
    const currentRenderTarget = this.renderer.getRenderTarget();
    let maskActive = false;
    const il = this.passes.length;
    for (let i = 0; i < il; i++) {
      const pass = this.passes[i];
      if (pass.enabled === false)
        continue;
      pass.renderToScreen = this.renderToScreen && this.isLastEnabledPass(i);
      pass.render(this.renderer, this.writeBuffer, this.readBuffer, deltaTime, maskActive);
      if (pass.needsSwap) {
        if (maskActive) {
          const context = this.renderer.getContext();
          const stencil = this.renderer.state.buffers.stencil;
          stencil.setFunc(context.NOTEQUAL, 1, 4294967295);
          this.copyPass.render(this.renderer, this.writeBuffer, this.readBuffer, deltaTime);
          stencil.setFunc(context.EQUAL, 1, 4294967295);
        }
        this.swapBuffers();
      }
      if (MaskPass.MaskPass !== void 0) {
        if (pass instanceof MaskPass.MaskPass) {
          maskActive = true;
        } else if (pass instanceof MaskPass.ClearMaskPass) {
          maskActive = false;
        }
      }
    }
    this.renderer.setRenderTarget(currentRenderTarget);
  }
  reset(renderTarget) {
    if (renderTarget === void 0) {
      const size = this.renderer.getSize(new THREE.Vector2());
      this._pixelRatio = this.renderer.getPixelRatio();
      this._width = size.width;
      this._height = size.height;
      renderTarget = this.renderTarget1.clone();
      renderTarget.setSize(this._width * this._pixelRatio, this._height * this._pixelRatio);
    }
    this.renderTarget1.dispose();
    this.renderTarget2.dispose();
    this.renderTarget1 = renderTarget;
    this.renderTarget2 = renderTarget.clone();
    this.writeBuffer = this.renderTarget1;
    this.readBuffer = this.renderTarget2;
  }
  setSize(width, height) {
    this._width = width;
    this._height = height;
    const effectiveWidth = this._width * this._pixelRatio;
    const effectiveHeight = this._height * this._pixelRatio;
    this.renderTarget1.setSize(effectiveWidth, effectiveHeight);
    this.renderTarget2.setSize(effectiveWidth, effectiveHeight);
    for (let i = 0; i < this.passes.length; i++) {
      this.passes[i].setSize(effectiveWidth, effectiveHeight);
    }
  }
  setPixelRatio(pixelRatio) {
    this._pixelRatio = pixelRatio;
    this.setSize(this._width, this._height);
  }
  dispose() {
    this.renderTarget1.dispose();
    this.renderTarget2.dispose();
    this.copyPass.dispose();
  }
}
exports.EffectComposer = EffectComposer;
//# sourceMappingURL=EffectComposer.cjs.map