dmj5
Class DMJ_GaussianBlur

Object
  extended by common:Generic
      extended by dmj5:DMJ_ConvolutionFilter
          extended by dmj5:DMJ_GaussianBlur

class 
DMJ_ConvolutionFilter:DMJ_GaussianBlur

Basic Gaussian blur filter. Provides even, soft blurring.


Ultra Fractal Source

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 class DMJ_GaussianBlur(DMJ_ConvolutionFilter) {
   ; Basic Gaussian blur filter. Provides even, soft blurring.
   
 public:
   import "common.ulb"
   
   func DMJ_GaussianBlur(Generic pparent)
     DMJ_ConvolutionFilter.DMJ_ConvolutionFilter(pparent)
     
     int count = (@p_samples*2+1)
     int elements = sqr(count)
     setLength(m_Offsets, elements)
     setLength(m_Weights, elements)
     m_Bias = 0.0
     m_Multiplier = 0.0
 
     int j = -@p_samples
     int k = 0
     int l = 0
     float o = 1.0 / (2.0*sqr(@p_samples / 3.0))
     while (j <= @p_samples)
       k = -@p_samples
       while (k <= @p_samples)
         m_Offsets[l] = @p_radius*j/@p_samples + flip(@p_radius*k/@p_samples)
         m_Weights[l] = o/#pi * exp(-(sqr(j)+sqr(k))*o)
         m_Multiplier = m_Multiplier + m_Weights[l]
         l = l + 1
         k = k + 1
       endwhile
       j = j + 1
     endwhile
     
     m_Multiplier = 1.0 / m_Multiplier
   endfunc
   
 default:
   title = "Gaussian Blur"
   
   int param v_dmj_gaussianblur
     caption = "Version (DMJ_GaussianBlur)"
     default = 100
     hint = "This version parameter is used to detect when a change has been made to the formula that is incompatible with the previous version. When that happens, this field will reflect the old version number to alert you to the fact that an alternate rendering is being used."
     visible = @v_dmj_gaussianblur < 100
   endparam
 
   float param p_radius
     caption = "Filter Radius"
     default = 0.1
     hint = "Sets the radius of the filter. A smaller radius will result in less blurring."
   endparam
   int param p_samples
     caption = "Sample Density"
     default = 9
     min = 1
     hint = "Sets the density of samples used to compute the blur. Increasing the density will dramatically increase the rendering time (increasing with 4x the square of the density) but for very wide blurs you will need to do this to get even blurring."
   endparam
 }
 


Constructor Summary
DMJ_GaussianBlur()
           
DMJ_GaussianBlur(Generic pparent)
           
 
Method Summary
 
Methods inherited from class dmj5:DMJ_ConvolutionFilter
Init
 
Methods inherited from class common:Generic
GetParent
 
Methods inherited from class Object
 

Constructor Detail

DMJ_GaussianBlur

public DMJ_GaussianBlur(Generic pparent)

DMJ_GaussianBlur

public DMJ_GaussianBlur()