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{
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Calculation of randomly jiggled 2d picture coordinates.
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A1 - Degree of jiggleing.
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A2 - Ratio of height to width for non-square tiles.
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}
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jigglepic_u = Px + A1*noise3(Px+8.7,Py-31.2,Pz+44.4);
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jigglepic_v = Py + A1*noise3(Py-13.4,Py+11.7,Pz-33.8);
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fjigglepic_u = Px + A1*fnoise3(Px+8.7,Py-31.2,Pz+44.4);
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fjigglepic_v = Py + A1*fnoise3(Py-13.4,Py+11.7,Pz-33.8);
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jiggletile_u = mod(jigglepic_u,max(1,1/jgpic_aspect));
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jiggletile_v = mod(jigglepic_v,max(1,jgpic_aspect));
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jigglematch_u = tri(jigglepic_u,max(1,1/jgpic_aspect));
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jigglematch_v = tri(jigglepic_v,max(1,jgpic_aspect));
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fjiggletile_u = mod(fjigglepic_u,max(1,1/jgpic_aspect));
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fjiggletile_v = mod(fjigglepic_v,max(1,jgpic_aspect));
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fjigglematch_u = tri(fjigglepic_u,max(1,1/jgpic_aspect));
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fjigglematch_v = tri(fjigglepic_v,max(1,jgpic_aspect));
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jgpic_aspect = if(arg(0)-1.5, arg(2), 1);
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