Method _render

modules/core/src/passes/layers-pass.ts:89–124

(options: LayersPassRenderOptions)

  }

  protected _render(options: LayersPassRenderOptions): RenderStats[] {
    const canvasContext = this.device.canvasContext!;
    const framebuffer = options.target ?? canvasContext.getCurrentFramebuffer();
    const [width, height] = canvasContext.getDrawingBufferSize();

    // Explicitly specify clearColor and clearDepth, overriding render pass defaults.
    const clearCanvas = options.clearCanvas ?? true;
    const clearColor = options.clearColor ?? (clearCanvas ? [0, 0, 0, 0] : false);
    const clearDepth = clearCanvas ? 1 : false;
    const clearStencil = clearCanvas ? 0 : false;
    const colorMask = options.colorMask ?? 0xf;

    const parameters: RenderPassParameters = {viewport: [0, 0, width, height]};
    if (options.colorMask) {
      parameters.colorMask = colorMask;
    }
    if (options.scissorRect) {
      parameters.scissorRect = options.scissorRect as NumberArray4;
    }

    const renderPass = this.device.beginRenderPass({
      framebuffer,
      parameters,
      clearColor: clearColor as NumberArray4,
      clearDepth,
      clearStencil
    });

    try {
      return this._drawLayers(renderPass, options);
    } finally {
      renderPass.end();
      // TODO(ibgreen): WebGPU - submit may not be needed here but initial port had issues with out of render loop rendering
      this.device.submit();
    }
  }

  /** Draw a list of layers in a list of viewports */
  private _drawLayers(renderPass: RenderPass, options: LayersPassRenderOptions) {