Phillip Neiswanger schrieb:
Hello,
I am slowly learning gtkglextmm and opengl. I wrote a small program
that does texturing, and I've run into a small problem I was wondering
if you could help me with. I used Gdk::Pixbuf::create_from_file() to
load the image and later a call to glTexImage2D() setup the texture.
However, the image is displayed backwards on its quad. The image has
text in it, so I couldn't leave it that way. I ended up flipping the
image with a paint program.
I am wondering if Gdk or GL provides a ready made function that could
have done the flipping for me at run time.
You could have used different texture coordiantes (either manually or
using the texture matrix).
Philipp
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