cene, camera);

                // Copy pass
                this.copyMaterial.uniforms.tMap.value = renderTargetA.texture;
                this.screen.material = this.copyMaterial;
                renderer.setRenderTarget(renderTargetB);
                renderer.render(this.screen, this.screenCamera);

                // Gaussian blur pass (render to screen)
                this.blurMaterial.uniforms.tMap.value = renderTargetB.texture;
                this.screen.material = this.blurMaterial;
             