help - glTexCoord2f

OpenGL Development
#1

I have the basic setup with lwjgl 09 cvs, and when I draw a quad qithout textures it is shown.
But I want to draw the texture but i dont understand the glTexCoord command.

This example is from one of the threads here…could someone explain why the coords in the glTexCoord2f command are different from the glVertex3f command?

Shouldnt they be the same to specify where the texture is going to be rendered? can the texture be rendered without a quad?
GL11.glBegin(GL11.GL_QUADS);

GL11.glTexCoord2f(0.0f, 0.0f);
GL11.glVertex3f(-width/2, -width/2, 0.0f);

GL11.glTexCoord2f(0.0f, 1.0f);
GL11.glVertex3f(-width/2, width/2, 0.0f);

GL11.glTexCoord2f(1.0f, 1.0f);
GL11.glVertex3f(width/2, width/2, 0.0f);

GL11.glTexCoord2f(1.0f, 0.0f);
GL11.glVertex3f(width/2, -width/2, 0.0f);

GL11.glEnd();

#2

No, the texture coordinates are the coordinates on the texture that that are applied to each vertex.

The redbook explains texturing pretty well.

#3

Hey thanks, it works now.

texturemapping wasnt enabled, so thats why it didnt show :slight_smile: probably. I enabled it with a gl command and then the texture was rendered :smiley: