I am brand new here, so my question is probably very simple, but I can’t find anything what I need - probably bad queries in Google and here :(.
I am using OpenGL with Delphi.
I am experienced programmer but not in OpenGL.
Using examples I did 3D display of the physical values using HeightFields and small Cylinders, Cones and Spheres as a children of the HeightField.
I need a hint, how to get values of the X,Y,Z position of the objects under the mouse.
Thank you for help.