Category: Filter Factory Gallery N
Title: Bulging Edge Shader...
Author: Sandy Blair
Copyright: Copyright © Sandy Blair

ctl[0]: centre shading  
ctl[1]: edge shading    
ctl[2]: 
ctl[3]: 
ctl[4]: 
ctl[5]: 
ctl[6]:
ctl[7]: 
val[0]: 119
val[1]: 252
val[2]: 0
val[3]: 0
val[4]: 0
val[5]: 0
val[6]: 0
val[7]: 1
R:put(sqr((0-x)*(0-x)+(0-y)*(0-y)),0),put(sqr((0-x)*(0-x)+(Y-y)*(Y-y)),1),put(sqr((X-x)*(X-x)+(0-y)*(0-y)),2),put(sqr((X-x)*(X-x)+(Y-y)*(Y-y)),3),put(get(0)+get(1)+get(2)+get(3),4),put(2*sqr(X*X+Y*Y),5),put(X+Y+sqr(X*X+Y*Y),6),put(scl(get(4),get(5),get(6),ctl(0),ctl(1)),7),scl(c,0,255,get(7)<128?0:2*get(7)-255,get(7)<128?2*get(7):255)
G:scl(c,0,255,get(7)<128?0:2*get(7)-255,get(7)<128?2*get(7):255)
B:scl(c,0,255,get(7)<128?0:2*get(7)-255,get(7)<128?2*get(7):255)
A:a