er: false
                });

                this.renderTargetB = this.renderTargetA.clone();

                this.renderTargetA.depthBuffer = true;

                // Gaussian blur material
                this.blurMaterial = new SinglePassBlurMaterial();
                this.blurMaterial.uniforms.uBlurAmount.value = this.blurAmount;
                this.blurMaterial.uniforms.uResolution = resolution;

                // Copy material
                this.copyMaterial = new CopyMaterial();
            