Method _postRender

modules/core/src/lib/deck-renderer.ts:177–195

(effects: Effect[], opts: LayersPassRenderOptions)

  }

  private _postRender(effects: Effect[], opts: LayersPassRenderOptions) {
    const {renderBuffers} = this;
    const params: PostRenderOptions = {
      ...opts,
      inputBuffer: renderBuffers[0],
      swapBuffer: renderBuffers[1]
    };
    for (const effect of effects) {
      if (effect.postRender) {
        // If not the last post processing effect, unset the target so that
        // it only renders between the swap buffers
        params.target = effect.id === this.lastPostProcessEffect ? opts.target : undefined;
        const buffer = effect.postRender(params);
        // Buffer cannot be null if target is unset
        params.inputBuffer = buffer!;
        params.swapBuffer = buffer === renderBuffers[0] ? renderBuffers[1] : renderBuffers[0];
      }
    }
  }
}