     }
     
     func setBlurBuffer() {
+        
         //
         // Texel offset generation for linear sampled gaussian blur
         // Source: http://rastergrid.com/blog/2010/09/efficient-gaussian-blur-with-linear-sampling/

            (0, offsets[2] * texelHeight)
        )
        _currentBlurBuffer += 1
    }
    
    func setColorBuffer() {

                                 pipeline: filter,
                                 vertexIndex: 0,
                                 fragmentBuffers: filterParameters,
                                 sourceTextures: [sourceTexture, blurTex, rgbTexture],
                                 descriptor: destDescriptor,
                                 viewport: nil)
                
