osl random projection on instances

#include <octane-oslintrin.h>

shader textureSheet (

    output point uvOut = 0,

    int maxcount = 16
        [[int min=1, int max=10000]],

    int columns = 4
        [[int min=1, int max=100]],

    int rows = 4
        [[int min=1, int max=100]],

    color RandomTexture = color(1, 0, 0)

    )

{
   color c2 = _evaluateDelayed(RandomTexture, 0.5, 0.5);
   int instRnd = (int) floor(c2[0]*maxcount);

   int column = instRnd % columns;
   int row = (int)floor(instRnd / columns);

   float U2 = (u + column) / columns;
   float V2 = (v + rows - row - 1) / rows;

   uvOut = point(U2, V2, 0);

}