Problem drawing textured triangle using glDrawArrays()

advanced
#1

I trying to do something really simple and failing badly.
I’m trying to draw a single textured triangle. The triangle gets drawn but is not textured. What am I doing wrong, this is driving me crazy!

Thanks…

  
void testApp::drawTriangle(float x1, float y1, float z1, float x2, float y2, float z2, float x3, float y3, float z3){  
	triPoints[0].set(x1,y1,z1);  
	triPoints[1].set(x2,y2,z2);  
	triPoints[2].set(x3,y3,z3);  
  
	triTexPoints[0].set(0,0);  
	triTexPoints[1].set(1,0);  
	triTexPoints[2].set(1,1);  
  
        img.getTextureReference().bind();  
  
        glEnableClientState(GL_TEXTURE_COORD_ARRAY_EXT);  
	glTexCoordPointer(2, GL_FLOAT, sizeof(ofVec2f), &triTexPoints[0].x);  
  
        glEnableClientState(GL_VERTEX_ARRAY);  
	glVertexPointer(3, GL_FLOAT, sizeof(ofVec3f), &triPoints[0].x);  
	glDrawArrays(GL_TRIANGLES, 0, 3);  
        glDisableClientState( GL_TEXTURE_COORD_ARRAY );  
  
        img.getTextureReference().unbind();  
}
#2

Hey Pierre, have you enabled normalised texture coords in setup? eg. ofEnableNormalizedTexCoords();

#3

I’d tried that at some point and hadn’t seen any difference, but looked at it again and it worked. In fact the best result was:

  
  
	triTexPoints[0].set(x1,y1);  
	triTexPoints[1].set(x2,y2);  
	triTexPoints[2].set(x3,y3);

Thanks!