How can i get the depth of Point(x,y)

apapaxionga · October 12, 2011, 6:55am

I have the correct (x,y) value in world coordinate, i want to get the depth of the that point. How?

ugluk · October 12, 2011, 7:21am

Heheh, if you have the world coordinates, you have everything. World coordinates are at the front of the transform stack.

apapaxionga · October 12, 2011, 8:04am

the Point(x,y) which i got from the transformation of screen coord do not have correct z value. how can i get it?

ugluk · October 12, 2011, 9:18am

Why don’t you check:

for gluUnProject()? It has the equation. I’d try to use that, but could be I’m wrong, as your posts are confusing.