Help : enlarge a triangle strip [Archive] - OpenGL Discussion and Help Forums

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oumind

11-07-2008, 12:59 AM

Hi,

I have a surface being represented as triangle strip. The surface has certain view (glulookat API). If I want to enlarge the surface/triangle strip, what should I do? glscalef API does not work for me. Not sure it is due to glulookat()

Thanks in advance

Cheers

IneQuation.pl

11-07-2008, 06:38 AM

Are you sure your matrix mode is set to model view?

oumind

11-09-2008, 05:45 PM

Sorry IneQuation.pl, setting to model view does not help. Should I use gluPerspective()?

oumind

11-09-2008, 11:57 PM

In my experience, glscalef() on triangle_trip has the same effect as gltranslatef(), e.g. the triangle_trip is moved but is not enlarged. I have seen working example of glscalef() on glutwirecube().

oumind

11-10-2008, 01:50 AM

The API used is glscalef(2.0f, 2.0f, 1.0f). Could it be the triangle_strip does not look larger because it is viewed from z-axis? If you have any other ideas, please let me know.