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  help - glTexCoord2f  (Read 1732 times)
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Offline zulo

Junior Devvie




Java games rock!


« Posted 2004-05-29 07:18:23 »

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();  
Offline cfmdobbie

Senior Devvie


Medals: 1


Who, me?


« Reply #1 - Posted 2004-05-29 07:31:37 »

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

The redbook explains texturing pretty well.

Hellomynameis Charlie Dobbie.
Offline zulo

Junior Devvie




Java games rock!


« Reply #2 - Posted 2004-05-29 14:20:16 »

Hey thanks, it works now.

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