Thread: Texture mapping in OpenGL

Okey dokes, well I have texture mapping working and all but I'm trying to texture map a rectangle (with a rectangular image) but I can't seem to get it working. . . ie the the texture is all screwed and skewed.

Code:

glBegin(GL_QUADS);
glTexCoord2f(0.0f,0.0f);
glVertex3f(-9.0f,0.0f,0.0f);
glTexCoord2f(1.0f,0.0f);
glVertex3f(9.0f,0.0f,0.0f);
glTexCoord2f(1.0f,1.0f);
glVertex3f(9.0f,9.0f,0.0f);
glTexCoord2f(0.0f,10.0f);
glVertex3f(-9.0f,9.0f,0.0f);
glEnd();

Buh, I figured it out! I was specifying the wrong dimensions for my texture.

Ahh well, now I have another texturing problem. .. It's upside down ..

>> glTexCoord2f(0.0f,10.0f);

i assume that was your problem....

>> It's upside down

you could rotate the quad or perhaps reverse your vertical texture coords to draw it right side up.

Yeah, I just flipped my texture in photoshop.

Oh, and I was only using number higher than 1 because 1 didn't work because of my mistake in not specifying the right image dimensions.

Thanks anyway.