Panda3D
Classes | Variables

Package filter.CommonFilters

Classes

class  CommonFilters
class  FilterConfig

Variables

string CARTOON_BODY

Detailed Description


Class CommonFilters implements certain common image
postprocessing filters.

It is not ideal that these filters are all included in a single
monolithic module.  Unfortunately, when you want to apply two filters
at the same time, you have to compose them into a single shader, and
the composition process isn't simply a question of concatenating them:
you have to somehow make them work together.  I suspect that there
exists some fairly simple framework that would make this automatable.
However, until I write some more filters myself, I won't know what
that framework is.  Until then, I'll settle for this 
clunky approach.  - Josh


Variable Documentation

string CARTOON_BODY
Initial value:
00001 """
00002 float4 cartoondelta = k_cartoonseparation * texpix_txaux.xwyw;
00003 float4 cartoon_p0 = l_texcoordN + cartoondelta.xyzw;
00004 float4 cartoon_c0 = tex2D(k_txaux, cartoon_p0.xy);
00005 float4 cartoon_p1 = l_texcoordN - cartoondelta.xyzw;
00006 float4 cartoon_c1 = tex2D(k_txaux, cartoon_p1.xy);
00007 float4 cartoon_p2 = l_texcoordN + cartoondelta.wzyx;
00008 float4 cartoon_c2 = tex2D(k_txaux, cartoon_p2.xy);
00009 float4 cartoon_p3 = l_texcoordN - cartoondelta.wzyx;
00010 float4 cartoon_c3 = tex2D(k_txaux, cartoon_p3.xy);
00011 float4 cartoon_mx = max(cartoon_c0,max(cartoon_c1,max(cartoon_c2,cartoon_c3)));
00012 float4 cartoon_mn = min(cartoon_c0,min(cartoon_c1,min(cartoon_c2,cartoon_c3)));
00013 float cartoon_thresh = saturate(dot(cartoon_mx - cartoon_mn, float4(3,3,0,0)) - 0.5);
00014 o_color = lerp(o_color, float4(0,0,0,1), cartoon_thresh);
00015 """
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