three-stdlib/postprocessing/MaskPass.js

stand-alone library of threejs examples

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;
};
import { Pass } from "./Pass.js";
class MaskPass extends Pass {
  constructor(scene, camera) {
    super();
    __publicField(this, "scene");
    __publicField(this, "camera");
    __publicField(this, "inverse");
    this.scene = scene;
    this.camera = camera;
    this.clear = true;
    this.needsSwap = false;
    this.inverse = false;
  }
  render(renderer, writeBuffer, readBuffer) {
    const context = renderer.getContext();
    const state = renderer.state;
    state.buffers.color.setMask(false);
    state.buffers.depth.setMask(false);
    state.buffers.color.setLocked(true);
    state.buffers.depth.setLocked(true);
    let writeValue, clearValue;
    if (this.inverse) {
      writeValue = 0;
      clearValue = 1;
    } else {
      writeValue = 1;
      clearValue = 0;
    }
    state.buffers.stencil.setTest(true);
    state.buffers.stencil.setOp(context.REPLACE, context.REPLACE, context.REPLACE);
    state.buffers.stencil.setFunc(context.ALWAYS, writeValue, 4294967295);
    state.buffers.stencil.setClear(clearValue);
    state.buffers.stencil.setLocked(true);
    renderer.setRenderTarget(readBuffer);
    if (this.clear)
      renderer.clear();
    renderer.render(this.scene, this.camera);
    renderer.setRenderTarget(writeBuffer);
    if (this.clear)
      renderer.clear();
    renderer.render(this.scene, this.camera);
    state.buffers.color.setLocked(false);
    state.buffers.depth.setLocked(false);
    state.buffers.stencil.setLocked(false);
    state.buffers.stencil.setFunc(context.EQUAL, 1, 4294967295);
    state.buffers.stencil.setOp(context.KEEP, context.KEEP, context.KEEP);
    state.buffers.stencil.setLocked(true);
  }
}
class ClearMaskPass extends Pass {
  constructor() {
    super();
    this.needsSwap = false;
  }
  render(renderer) {
    renderer.state.buffers.stencil.setLocked(false);
    renderer.state.buffers.stencil.setTest(false);
  }
}
export {
  ClearMaskPass,
  MaskPass
};
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