Comments on: I’m officially confused…(FIXED)

By: mike

mike — Mon, 21 Jun 2010 13:13:12 +0000

@Neogene, LOL, very good ;o)

By: Neogene

Neogene — Mon, 21 Jun 2010 06:43:37 +0000

“THIS IS MADNESS”?

“THIS IS SPARTA”!!!

By: mike

mike — Mon, 21 Jun 2010 06:14:07 +0000

I’ve added an update 2 that describes why changing the order of the glTexCoord and glVertex commands is important.

@Kurt, I agree and count not rest until I understood why this was important. The update should put some light on the reason :o)

Mike

By: nexus6

nexus6 — Sun, 20 Jun 2010 22:11:24 +0000

wow! who would of thought a statement reversal would cause all of that!!

By: Kurt

Kurt — Sun, 20 Jun 2010 22:00:55 +0000

Mike,

Could you do all of us newbies a favor and explain why the solution is to reverse the statements?

I would guess that the problem had to do with the fact that OpenGL is a state machine and reversing the order of the statements fixed it because of some state that gets changed in one of them. Yet, you said that you’ve seen the code written in the “broken” way in the past. So what makes it “broken” in your situation, as opposed to others?

I’ve always found that the most frustrating problems I’ve encountered have also turned out to the some of the best teaching situations.

Thanks,
-Kurt

By: mike

mike — Sun, 20 Jun 2010 20:44:43 +0000

I’ve made an update to the post as it is now working. Check out the update for the solution.

Mike

By: mike

mike — Sun, 20 Jun 2010 20:30:21 +0000

Nope, just 2D as this is using a ported version of my particle emitter class from the iPhone.

By: nexus6

nexus6 — Sun, 20 Jun 2010 20:29:26 +0000

Mike,
is this 2D or 3D?
if 3d, i Don’t see GL_TEXTURE_3D enable being called

By: mike

mike — Sun, 20 Jun 2010 20:13:49 +0000

Ah, my bad, I should have said that this is the code in Particle Designer on the desktop under OS X :o)

Mike

By: nexus6

nexus6 — Sun, 20 Jun 2010 20:12:41 +0000

Hi Mike,

I might be wrong but I thought openGL ES didn’t
support glBegin/glEnd.