Basic Emboss filter.
class REB_EmbossFilter(dmj5.ulb:DMJ_ConvolutionFilter) {
; Basic Emboss filter. <br>
public:
import "common.ulb"
import "dmj5.ulb"
; contructor
func REB_EmbossFilter(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 = @p_bias
if @v_embossfilter < 101 && @pgray
m_bias = m_bias + 0.5
else
if @etype != "full color"
m_bias = m_bias + 0.5
endif
endif
m_Multiplier = 0.0
complex v = @p_radius * ((0,1) ^ (@p_angle / 90.0)) / @p_samples
int j = -@p_samples
int k = 0
int l = 0
while (j <= @p_samples)
k = -@p_samples
while (k <= @p_samples)
if @v_embossfilter < 101
m_Offsets[l] = v * j/100
m_Weights[l] = (k-j)
if @pgray
m_Offsets[l] = v * j/100 * (0.5/@p_samples^2)
endif
if (j == 0 && k == 0) && !@pgray
m_weights[l] = m_multiplier
endif
else
if @etype == "full color"
m_Offsets[l] = v * j/100
m_Weights[l] = (k-j)
elseif @etype == "pseudo gray"
m_Offsets[l] = v * j/100 * (0.5/@p_samples^2)
m_Weights[l] = (k-j)
elseif @etype == "Laplacian"
m_Offsets[l] = v * j/100
if (l % 2 == 0) && !(j == 0 && k == 0) && (abs(j) == abs(k))
m_Weights[l] = -1
endif
elseif @etype == "corner"
m_Offsets[l] = v * j/100
if k <= 0 && j < 0
m_Weights[l] = 1
endif
if k > 0 && j >= 0
m_Weights[l] = -1
endif
elseif @etype == "extrude"
m_Offsets[l] = v * j/100
if j == -@p_samples
m_Weights[l] = 1
endif
if j == @p_samples
m_Weights[l] = -1
endif
endif
if (j == 0 && k == 0)
if @etype == "full color"
m_weights[l] = m_multiplier
elseif @etype == "Laplacian"
m_weights[l] = @p_samples*4
endif
endif
endif
m_Multiplier = m_Multiplier + m_Weights[l]
l = l + 1
k = k + 1
endwhile
j = j + 1
endwhile
if m_Multiplier == 0
m_multiplier = 1
endif
m_Multiplier = 1 / m_Multiplier
endfunc
default:
title = "Emboss Filter"
int param v_embossfilter
caption = "Version (Emboss Filter)"
default = 101
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_embossfilter < 101
endparam
float param p_bias
caption = "bias"
default = 0
endparam
param etype
caption = "Emboss Type"
default = 0
enum = "full color" "pseudo gray" "Laplacian" "corner" "extrude"
visible = @v_embossfilter >= 101
endparam
bool param pgray
caption = "Pseudo gray"
default = false
visible = @v_embossfilter < 101
endparam
float param p_angle
caption = "Angle"
default = 60.0
endparam
float param p_radius
caption = "Filter Radius"
default = 0.1
endparam
int param p_samples
caption = "Sample Density"
default = 2
min = 1
max = 9
endparam
}