I got a bit strange problem. Im using OpenGL and raypicking.

But this problem has more coding problem than OpenGL problem.

I have a loop (3D):

[source lang="cpp"] int c = 0; for (int x = 0; x < maxx; x++) { for (int y = 0; y < maxy; y++) { for (int z = 0; z < maxz; z++) { obj[c].Shift(new Vec3(x, y, z)); c++; } } }[/source]

In this loop vertices of objects are shifted according to their positions on the map.

maxx, maxy, maxz are int values. For example:

maxx=3;

maxy=3;

maxz=3;

If they all are equal, like above, then i get fine results and picking works. As soon as at least one of them is different (bigger or smaller), the picking fails to return correct coords (X,Y,Z).

In my case, maxx, maxy, maxz, never can be equal.

MaxX is maximum 255

MaxY is maximum 255

MaxZ is maximum 7

But in that case, code fails to do picking.

If im correct, the problem is in this 3D for loop.

Because if i manually assign coords to objects, the it always works. Even with different maxx, maxy and maxz.

The output of looping is like this:

X: 0 Y: 0 Z: 0 X: 0 Y: 0 Z: 1 X: 0 Y: 0 Z: 2 X: 0 Y: 1 Z: 0 X: 0 Y: 1 Z: 1 X: 0 Y: 1 Z: 2 X: 0 Y: 2 Z: 0 X: 0 Y: 2 Z: 1 X: 0 Y: 2 Z: 2 X: 1 Y: 0 Z: 0 X: 1 Y: 0 Z: 1 X: 1 Y: 0 Z: 2 X: 1 Y: 1 Z: 0 X: 1 Y: 1 Z: 1 X: 1 Y: 1 Z: 2 X: 1 Y: 2 Z: 0 X: 1 Y: 2 Z: 1 X: 1 Y: 2 Z: 2 X: 2 Y: 0 Z: 0 X: 2 Y: 0 Z: 1 X: 2 Y: 0 Z: 2 X: 2 Y: 1 Z: 0 X: 2 Y: 1 Z: 1 X: 2 Y: 1 Z: 2 X: 2 Y: 2 Z: 0 X: 2 Y: 2 Z: 1 X: 2 Y: 2 Z: 2

Im not even sure, if somebody understands this and can help me, but it's pretty strange problem here.

Manually it works, but with this loop, it doesn't.

I will try once more manually, and will try to post differences, but in meanthime i would be thankful to get any help on this.

EDIT: ok my manual values:

0, 0, 0 0, 1, 0 0, 2, 0 0, 0, 1 0, 0, 2

**Edited by BytePtr, 18 August 2012 - 03:33 PM.**