Point Cloud Christmas
eharetea

Use VEX to create a point cloud geometry opertator.

Sliding particles and point clouds.

Date Created:Friday December 29th, 2006 03:41 AM
Date Modified:Thursday July 31st, 2008 12:11 AM


Point Cloud Christmas - test.3daet.com


#pragma hint filename oppath
#pragma hint height hidden
sop
getColor(string filename="/obj/model/popnet1";
            export float height 0;
            float radius 1;
            float falloff 1;)
{
    string file concat("op:"filename);
    // may want to change this...npoints in vex looks at opinputs
    int numpoints npoints(filename)+10;

    int pointcloud pcopen(file"P"Pradiusnumpoints);

    Cd 0;

    while(pciterate(pointcloud))
    {
        float dist;
        vector col;
        pcimport(pointcloud"point.distance"dist);
        pcimport(pointcloud"Cd"col);

        float dd dist/radius;

        // actually a smooth function
        // smooth(0,1,dd);
        // 3x^2 - 2x^3
        dd * ( dd dd ) - * ( dd dd dd);
        dd pow(dd,falloff);
        Cd += col * ( dd ) ;
 
 
    }

}






Downloads:
Download: contact.swf 397 KB
Download: point_cloud_xmas.vfl 900 B
Download: pointcloudchristmassops.hip 467 KB

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Creative Commons License
Point Cloud Christmas by Dan Lynch
is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
Based on a work at www.3daet.com
Permissions beyond the scope of this license may be available at http://www.3daet.com