 OrthographicCamera(-1, 1, 1, -1, 0, 1);
                this.screen = new Mesh(screenTriangle);
                this.screen.frustumCulled = false;

                // Render targets
                this.renderTarget = new WebGLRenderTarget(1, 1, {
                    depthBuffer: false
                });

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

 