render()

in src/engine/VolumeRenderer3d.js [1257:1332]
51 lines of code
15 McCabe index (conditional complexity)

  render() {
    /*if (this.sceneReadyCounter !== SCENE_READY_COUNTER_OK) {
      // render empty scene to show "black" empty screen
      this.renderer.render(this.scene, this.camera);
      return;
    }*/
    if (!this.isReadyToRender()) {
      return;
    }
    const matReady = this.matVolumeRender !== null && this.matBF !== null && this.matFF !== null && this.matRenderToTexture !== null;
    if (!matReady) {
      // do nothing
    } else {
      // check once render target
      if (this.checkFrameBufferMode === CHECK_MODE_NOT_CHECKED) {
        // const isGood = true;// GlCheck.checkFrameBuffer(this.renderer, this.bfTexture);
        this.checkFrameBufferMode = CHECK_MODE_RESULT_OK;
      }

      if (this.renderScene === SCENE_TYPE_RAYCAST) {
        this.updateLightDir();
        this.updateClipPlaneGeometry();
        this.updateCutPlanes();

        this.renderer.setRenderTarget(this.bfTexture);
        this.renderer.clear();
        this.renderer.state.buffers.depth.setClear(0);
        this.scene.overrideMaterial = this.matBF;
        this.renderer.render(this.scene, this.camera, this.bfTexture);
        const glC = this.renderer.getContext();
        if (this.isEraseMode && !this.lockEraserBuffersUpdating) {
          glC.readPixels(0, 0, this.windowWidth, this.windowHeight, glC.RGBA, glC.FLOAT, this.bufferBFTextureCPU);
        }
        this.renderer.setRenderTarget(this.ffTexture);
        this.renderer.clear();
        this.renderer.state.buffers.depth.setClear(1);
        // render clip plane without depth test
        this.renderer.render(this.sceneClipPlane, this.camera, this.ffTexture);
        // enable test again
        this.scene.overrideMaterial = this.matFF;
        this.renderer.render(this.scene, this.camera, this.ffTexture);
        if (this.isEraseMode && !this.lockEraserBuffersUpdating) {
          glC.readPixels(0, 0, this.windowWidth, this.windowHeight, glC.RGBA, glC.FLOAT, this.bufferFFTextureCPU);
        }

        this.renderer.setRenderTarget();
        this.renderer.clear();
        this.renderer.state.buffers.depth.setClear(0);

        this.scene.overrideMaterial = this.matRenderToTexture;
        this.renderer.render(this.scene, this.camera, this.renderToTexture);
        if (this.isEraseMode && !this.lockEraserBuffersUpdating) {
          glC.readPixels(0, 0, this.xSmallTexSize, this.ySmallTexSize, glC.RGBA, glC.FLOAT, this.bufferRenderToTextureCPU);
        }
        // get a reference to the internal WebGL rendering context
        this.scene.overrideMaterial = null;
        this.renderer.render(this.scene, this.camera);
        // Render wireframe mesh
        this.renderer.autoClearDepth = false;

        //this.matWireFrame
        //this.renderer.clear();
        if (this.Tool23D) {
          this.renderer.render(this.scene23D, this.camera);
        }
        //this.renderer.render(this.sceneSphereWireFrame, this.camera);
        this.renderer.autoClearDepth = true;
        //this.renderer.clear();
        /*
        this.renderer.clear();
        this.renderer.render(this.scene23D, this.camera);
        */
      }
      this.renderCounter++;
    }
  }