tBlurA = this.renderTargetA.clone();
                this.renderTargetBlurB = this.renderTargetA.clone();

                this.renderTargetBright = this.renderTargetA.clone();
                this.renderTargetsHorizontal = [];
                this.renderTargetsVertical = [];
                this.nMips = 5;

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