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Subdivide Artifact
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Subdivide Artifact // New Users
Post by jamesmc // Mar 22, 2006, 2:42pm
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jamesmc
Total Posts: 2566
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Attached is a file with 3 jpegs.
One is labeled girl_entire.jpg, shows the entire toon girl for visual reference purposes.
The second labeled girl_01.jpg is a close up on the region with the red circle that is unaffected but shown as a comparison in wireframe mode.
The third is labeled girlsub_d_1.jpg has an artifact showing up after one subdivision (circled in red.)
Anyway to stop that from happening?
in the girl_01.jpg that's a widget in background, not an artifact. :0
Do I just need to adjust the mesh after subdividing? Or should I not subdivide? |
Post by jamesmc // Mar 22, 2006, 2:45pm
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jamesmc
Total Posts: 2566
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it didn't like my file ext on my compressor, I'll try again. |
Post by Délé // Mar 22, 2006, 3:31pm
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Délé
Total Posts: 1374
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hmmm....It's kind of hard to tell what's going on here. It looks like maybe a hole in the mesh or something. The wireframe is a little hard to see, do you have all quads? It looks like the mesh is pinching a little after subdivision too. That could be from the hole though if there is one.
It kind of looks like maybe there are duplicate edges that when subdivided are exposing a hole in the mesh. It's a little hard to tell from the image though. If you save the model before subdivision and upload it, I'd be happy to take a look and see if I can figure out what's happening.
Otherwise I'd say just look over the area good and make sure that there are no holes. Also, make sure that there are no triangles or N-sided polygons as they may be causing some of the pinching.
hth |
Post by jamesmc // Mar 22, 2006, 4:13pm
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jamesmc
Total Posts: 2566
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Here's the cob file in 6.0 format.
There is a face on top of the head that somehow I missed when sweeping for the hair.
Would that that be the problem? |
Post by TheWickedWitchOfTheWeb // Mar 22, 2006, 5:07pm
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TheWickedWitchOfTheWeb
Total Posts: 858
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I had a similar problem a while ago so I hope you don't mind me interfering. If you zoom into the mesh at the problem area you'll notice that two of the points aren't connected like all the others. Enter point edit mode, select those two points and use the weld tool to join them together and, ta da, problem solved.
Hope that helps.
918 |
Post by jamesmc // Mar 22, 2006, 5:33pm
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jamesmc
Total Posts: 2566
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oO. Good eyes!
Thank you very much TheWickedWitchOfTheWeb!
My noobieness would have never discovered such a thing.
Thanks again!
By the way, the variation of your signature I have seen like this:
There are 1 0 kinds of people in the world, those who understand binary and those who don't. :) |
Post by TheWickedWitchOfTheWeb // Mar 22, 2006, 6:14pm
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TheWickedWitchOfTheWeb
Total Posts: 858
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You're welcome. If I can save you from the two days of head scratching and swearing at the screen that I went through then it's worth it!
As for the sig, I guess any number except two would work! :)
Cute characters by the way, forgot to say that. |
Post by Délé // Mar 22, 2006, 6:57pm
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Délé
Total Posts: 1374
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TheWickedWitchOfTheWeb beat me to it. She's quick. :) I had a feeling it might be N-Siders. Those pesky buggers will sneak up on ya sometimes. :)
I thought I'd just elaborate a little if that's cool. As I understand it, because the subdivision tries to create quads anyway to gain the extra geometry needed to smooth out the hard edges, having quads to begin with will create more predictable division and smoothing. In this case, the edges didn't meet, leaving two N-Sided polygons which caused stretching when subdivided. Did you use boolean union by chance? Boolean operations, while quick, often leave awkward geometry. |
Post by jamesmc // Mar 22, 2006, 7:04pm
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jamesmc
Total Posts: 2566
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Ahh, thanks Dele for the graphical illustration. I can see where things can go wrong now.
No boolean was done that I'm aware.
It was a very simple model to construct. Just a sphere with sweeps for the hair and body.
I will make pointy hair next using the method I saw on the GameSpace videos.
After I finish the cat though. :) |
Post by Délé // Mar 22, 2006, 10:19pm
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Délé
Total Posts: 1374
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No problem jamesmc. :) These look like fun little characters you're making. You certainly seem to be diving right in and pumping out models. At this rate you'll have a whole little city full of models in no time. :) |
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