Why isnt this working...
Author
int x=0, z=0;
for(x=-100; x<=100; x+=5)
{
for(z=-100; z<=100; z+=5)
{
glBegin(GL_QUADS);
glColor3ub(0, 255, 0);
glVertex3f((float)x, -1.0f, (float)z); // Left And Up 1 Unit (Top Left)
glVertex3f((float)x, -1.0f, (float)z); // Right And Up 1 Unit (Top Right)
glVertex3f((float)x, -1.0f, (float)z); // Right And Down One Unit (Bottom Right)
glVertex3f((float)x, -1.0f, (float)z);
glEnd();
}
}
it is suppose to create a bunch of 3d tiles but its not doing anything...
Don''t click me!
Killer Eagle Software
You're specifying the same vertex four times. There is no variation in the four vertices that you send to glVertex3f. You send (x, -1.0f, z) four times. The vertices must be different, or no quad will be drawn.
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[edited by - iNsAn1tY on November 2, 2002 6:50:15 PM]
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[edited by - iNsAn1tY on November 2, 2002 6:50:15 PM]
Umm... you''re creating all your vertices on the same point.
Consider the first iteration:
And this can''t work very well...
Consider the first iteration:
// x=-100, z=-100glBegin(GL_QUADS); glColor3ub(0, 255, 0);glVertex3f(-100.0f, -1.0f, -100.0f); // Left And Up 1 Unit (Top Left)glVertex3f(-100.0f, -1.0f, -100.0f); // Right And Up 1 Unit (Top Right)glVertex3f(-100.0f, -1.0f, -100.0f); // Right And Down One Unit (Bottom Right)glVertex3f(-100.0f, -1.0f, -100.0f); glEnd(); And this can''t work very well...
Author
quote:Original post by Anonymous Poster
Umm... you''re creating all your vertices on the same point.
Consider the first iteration:// x=-100, z=-100glBegin(GL_QUADS); glColor3ub(0, 255, 0);glVertex3f(-100.0f, -1.0f, -100.0f); // Left And Up 1 Unit (Top Left)glVertex3f(-100.0f, -1.0f, -100.0f); // Right And Up 1 Unit (Top Right)glVertex3f(-100.0f, -1.0f, -100.0f); // Right And Down One Unit (Bottom Right)glVertex3f(-100.0f, -1.0f, -100.0f); glEnd();
And this can''t work very well...
Ah, HA! your right i forgot to do this
for(x=-100; x<=100; x+=5)
{
for(z=-100; z<=100; z+=5)
{
glBegin(GL_QUADS);
glColor3ub(0, 255, 0);
glVertex3f((float)x-5, -1.0f, (float)z-5); // Left And Up 1 Unit (Top Left)
glVertex3f((float)x, -1.0f, (float)z-5); // Right And Up 1 Unit (Top Right)
glVertex3f((float)x, -1.0f, (float)z); // Right And Down One Unit (Bottom Right)
glVertex3f((float)x-5, -1.0f, (float)z);
glEnd();
}
}
Don''t click me!
Killer Eagle Software
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