Hey, I read a whole bunch about the procedures/functions you mentioned, but when I tried using them, it didn't work!
I have a few questions tht might help...
-Why does this not work:
Code:
Procedure Matrix_to_Win;
var model, proj, Winx,Winy,Winz : PGLdouble;
Matrixx,Matrixy,Matrixz : real;
view : PGLint;
begin
{view := 0;
model := GL_MODELVIEW;
proj := GL_PROJECTION;}
Winx := 0; Winy := 0; Winz := 0;
Matrixx := 0; Matrixy := 0; Matrixz := 0;
glGetDoublev(GL_MODELVIEW_MATRIX, model);
glGetDoublev(GL_PROJECTION_MATRIX, proj);
glGetIntegerv(GL_VIEWPORT, view);
gluProject(Matrixx, Matrixy, Matrixz,
model, proj, view,
Winx, Winy, Winz);
end;
I found that in an example they had on the internet, but it doesn't seem to work. Any clues?
I tried commenting out all the gl lines but one to see where the problem was but they all bugged! lol
-The gluProject 'returns' WinX, WinY and WinZ, right? bt those are the coordinates of the screen, right? then why a Z coordinate? :scratch:
-Does it return coordinates outside the screen too?
-If I want to use the Win coordinates, i'd like to make them integers, how do I do that?
How to convert PGLdouble to LongInt?
Double to longint?
Cheers
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