               for (let i = 0, l = this.nMips; i < l; i++) {
                    this.renderTargetsHorizontal.push(this.renderTarget.clone());
                    this.renderTargetsVertical.push(this.renderTarget.clone());
                }

                this.renderTarget.depthBuffer = true;

                // Luminosity high pass material
                this.luminosityMaterial = new LuminosityMaterial();
                this.luminosityMaterial.uniforms.uThreshold.value = this.luminosityThreshold;
    