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View of /branches/pure-cfg/test/zslice0.diderot

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Revision 653 - (download) (annotate)
Mon Mar 21 00:31:29 2011 UTC (8 years, 7 months ago) by jhr
File size: 783 byte(s)
  Removed workaround for always stabilizing
// vr-MIP-test.diderot
//
// test version of maximum intensity projection in Diderot
//

string dataFile = "../data/zimg.nrrd";
int dataSize = 9;
int imgSize = 200;
vec3 orig = [0.0, 0.0, 4.0];
vec3 cVec = [0.0, 1.0, 0.0];
vec3 rVec = [1.0, 0.0, 0.0];
image(3)[] img = load (dataFile);
field#2(3)[] F = img ⊛ bspln3;

strand RayCast (int row, int col)
{
    // HEY why doesn't rr or cc ever go negative?
    real rr = real(dataSize)*(real(row)+0.5)/real(imgSize) - 0.5;
    real cc = real(dataSize)*(real(col)+0.5)/real(imgSize) - 0.5;
    vec3 pos = orig + rr*rVec + cc*cVec;
    output real maxval = -∞; 

    update
    {
        maxval = rr;
        stabilize;
    }

    /* render: output maxval */
}

initially [ RayCast(r, c) | r in 0..(imgSize-1), c in 0..(imgSize-1) ];

root@smlnj-gforge.cs.uchicago.edu
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