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[diderot] View of /branches/vis12-cl/rtest/tests/convo2d0-rgb/convo2d0-rgb.diderot
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View of /branches/vis12-cl/rtest/tests/convo2d0-rgb/convo2d0-rgb.diderot

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Revision 1685 - (download) (annotate)
Sun Jan 22 15:23:36 2012 UTC (7 years, 6 months ago) by jhr
Original Path: branches/vis12/rtest/tests/convo2d0-rgb/convo2d0-rgb.diderot
File size: 480 byte(s)
  Create a branch to implement things that we need for the Vis 2012 paper

int outSize = 200;

field#0(2)[3] F = tent ⊛ load("../../data/ddro-115-rgb.nrrd");

strand sample (int ui, int vi) {
   real uu = lerp(0.0, 1.0, -0.5, real(ui), real(outSize)-0.5);
   real vv = lerp(0.0, 1.0, -0.5, real(vi), real(outSize)-0.5);
   vec2 pos = [uu, vv];
   output vec3 val = [nan,nan,nan];

   update {
      val = F(pos) if (inside(pos,F)) else [0.0,1.0,0.0];
      stabilize;
   }
}

initially [ sample(ui, vi) | vi in 0..(outSize-1), ui in 0..(outSize-1) ];

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