strange white pixel fringe/edge on model

Dustin Diamond
08-16-2006, 05:31 PM
So i just jumped headlong into modeling the other day to make some props for my map. I made one just fine, works great, no problems.

Then, i made a prop of a landmine. Looks great, everything is just fine. EXCEPT, when i load the model i get these strange white pixels that come and go on the edges. It is NOT in the texture, as these pixels are pure white and they sort of circle around the prop, plus they dont move with the prop.

I dont think this is related to the white spiderwebs that some people see on displacements, as non of the other models I look at do it. It shows up in Hammer, in game, and in HLMV. Strange. it's like it's have trouble defining the edge, or antialiasing or something. Also, when i zoom out, the white pixels become more defined to where it almost looks like a white ring around the mines.

Check out the pics, i hope it shows up in the jpg format:
Any ideas?

08-16-2006, 06:31 PM
Maybe the edges there aren't completely sealed?

Trp. Jed
08-16-2006, 06:44 PM
Ditto. I'd check all your vertices are welded and you're smoothing groups are properly assigned.

08-16-2006, 07:09 PM
Yeah, yeour texture is not aligned just right , i would scale it up a smidge and center it so it bleeds over the edge a bit since its a round texture

Dustin Diamond
08-16-2006, 07:10 PM
Hmm, i'm not entirely sure how to do that. I will tell you that this entire model was made from translating the subdivision faces of a single cylinder primitive, so it's unlikely any points are not connected, after all, it's just one object. I made the shape, then created clusters for use in making the UV Map. That's about it.

Can you guys point me to a place i can learn about smoothing groups and welding, etc? the resources I've found so far are crap. I'm using XSI, btw.

Dustin Diamond
08-16-2006, 07:36 PM
Originally posted by Someth|ngW|cked
Yeah, yeour texture is not aligned just right , i would scale it up a smidge and center it so it bleeds over the edge a bit since its a round texture
The texture is, in fact, already larger than the edges. Like i said, these pixels dont follow the model when i rotate. It's not on the texture. This fringe is pure white, which my texture is not. They just sort of appear and disappear.

Dustin Diamond
08-16-2006, 08:11 PM
I retract what I said. Somehow, it WAS the texture. Thinking about what was said, I figured I might as well try making a texture that was solid black, and then see if the white pixel fringe still showed up. Well nope, it didn't. So i went back and added the black background to my original texture and now it's gone (well, not gone, but black, so now you dont notice). It's odd, because before skinning the model, i did a UV stamp or whatever to make sure I was well over the boundaries when creating the texture. My only guess is the fact that i was creating the texture at 1024x1024, and then resizing it down to 512. Somewhere during that resize, the alignment must've gotten off. Sounds wacky, but whatever.

It's really odd because the white dots weren't consistant. They appeared in different places at different times. Oh well, it works now. Thanks for the help. :yar:

08-16-2006, 08:22 PM
I have the exact samething happen on most of the models I make. Ive just gotten into a habit of using a black background when my texture is final.

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