I would like to do something like this

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and decrement the number of objects in one direction as the loops progress. How
can I do this correctly? This does not work.

#declare IndexX = 0;

#while (IndexX <= 9)
        #declare EndZ = 9;
        #declare IndexZ = 0;

        #while (IndexZ <= EndZ)

                sphere {  <IndexX,1,IndexZ>, 0.1   texture {pigment{color Red}}}
        #declare EndZ = EndZ - 1;
        #declare IndexZ = IndexZ + 1;

        #end

#declare IndexX = IndexX + 1;
#end

Cheers,
Haakon

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