I made a SDI application using OpenGL.
and I have a problem.
I used orthographic parallel viewing volume.
l, b, ne, fa are appropriate variables…
and then I’m redering the model.
the blue line’s Z position is 1.0
and yellow block’s Z positon is 0.0
when I use mouse wheel, the picture is scaled.
glScaled(scale*count_scale, scale*count_scale, scale*count_scale);
I want Fig.1
but if the scale is small, Fig.2 is appread.
what is the problem?
thanks for your attention.