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Image without streching

Started by nildo Jun 3, 2003 at 7:56 AM 2 replies 550+ views

Original Post

Jun 3, 2003 at 7:56 AM

First of all hello ! Well. I am loading images to make my floor. The problem is: I want to repeat the image many times until the floor finishes. But the imaging is getting streched. glBindTexture(GL_TEXTURE_2D, texChao); glBegin(gl_quads); glNormal3f( 0.0, 1.0, 0.0); glTexCoord2f(0.0, 1.0); glVertex3D((iWidth div 2) * -1, chao_EixoY, 2); glTexCoord2f(0.0, 0.0); glVertex3D((iWidth div 2) * -1, chao_EixoY, iHeight * -1); glTexCoord2f(1.0, 0.0); glVertex3D((iWidth div 2), chao_EixoY, iHeight * -1); glTexCoord2f(1.0, 1.0); glVertex3D((iWidth div 2), chao_EixoY, 2); glEnd; How to do ?

Brother Bob

Jun 3, 2003 at 8:18 AM

Change the texture coordinates. They are the ones defining how the texture is mapped to the quad. For example, change 1.0 to 2.0 to repeat the texture two times.

_walrus

Jun 3, 2003 at 8:23 AM

also make sure to that this is the code in your texture object setup (as opposied to specifing gl_CLAMP_TO_EDGE or GL_CLAMP) . If not specified GL_REPEAT is the default.

glBindTexture(GL_TEXTURE_2D, texChao);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

[edited by - _walrus on June 3, 2003 9:25:44 AM]

Count_Zero

Jun 3, 2003 at 9:27 AM

Can you indicate on which axis the textures are being stretched, as that might help.

A couple of questions...

Are your quads intented to be squares, if so, is it worth displaying the tiles without the textures - to check whether it is the texture or the quad that is being stretched?

is your original image for the texture a square to begin with?

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