Welcome Guest [Log In] [Register]
We hope you enjoy your visit.


You're currently viewing the Ultimate 3D Community as a guest. This means that you can only read posts, but can not create posts or topics by yourself. To be able to post you need to register. Then you can participate in the community active and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.

Join our community!

If you are already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
The Mystery of the Invisible Face
Topic Started: Jun 10 2013, 12:07 AM (263 Views)
Magnar
Member Avatar
That guy
[ *  *  *  * ]
As you all know, I'm sort of a noob to blender, and as everyone who was once a noob they would google all thier problems.
I googled many variations of the problem and still no solution, and believe perhaps someone else has also had this problem, and could help, so here's the story.
The Legendary Mystery of the Invisible Face
 
Ok, so this is what's going on. I made a low-poly model in blender, they're always low-poly, but I usually make up for it in my UV mapping, but today I ran into a problem.I marked all the seams and everything along those lines, and I pressed U, unwrapped the to a uv map, and it looked completely perfect, and there were absolutely no problems. The End.
Posted Image

Psych! there was a problem: I saw a face the had no edges, and if I were to delete vertices, it would indefinitely screw up my model, so I chose to do what any good programmer would do, and that was to IGNORE IT.
Posted Image
It is something I regret to this day. I UV mapped my model,and when I was finished, I rendered the model.
Posted Image
The missing face would not appear in rendering, and therefore that strange hunch I got, telling me that the face WOULD be a problem, that hunch faded immediately. I guess that invisible face would never appear in my life again, and I could continue my life happily.

WRONG AGAIN, the face did reappear in my life, and I did NOT continue life happily. This face dissappeared ONLY in blender rendering, but when rendered in u3d model viewer, the face DID appear (and also the textures were slightly warped, even more warped than in blender)
Posted Image

I'm trying to figure out how to slay this face in blender beforehand, and therefore solve this problem.
Attached to this post:
Attachments: legend0.png (12 KB)
Attachments: legend1.png (7.41 KB)
Attachments: legend2.png (95.44 KB)
Attachments: legend3.png (41.37 KB)
Edited by Magnar, Jun 10 2013, 12:11 AM.
roses are grey,
violets are grey,
im colorblind,
fml.
Offline Profile Quote Post Goto Top
 
zelda4evr
Member Avatar
Forum God
[ *  *  *  *  *  * ]
This happens in every modelling program(but even more so in anim8or for some reason) what causes it to occur can vary but most of the time in blender it's two vertices that should be merged that aren't. To fix this problem first of all find any vertices that are more obviously apart when they should be together and press alt+m(it will give you options like at center, at first, and at last this means merging at the first or last selected vertices or in between them.) then, the less obvious thing to do is deselect everything, then press c and left click on one vertex(then right click) and press alt+m. do this for all suspicious vertices because there may be duplicate vertexes that you can't see, redo the uvmap and see if the problem persists. If you can't solve the problem then I suggest remodeling either just the problem area or the whole model using a different technique.

Posted Image
Offline Profile Quote Post Goto Top
 
Gandalf20000
Member Avatar
Geek
[ *  *  *  *  *  * ]
You don't need to manually select and merge every vertex. Select all your vertices in edit mode, and open up the menu Mesh->Vertices->Remove Doubles.
Offline Profile Quote Post Goto Top
 
Magnar
Member Avatar
That guy
[ *  *  *  * ]
I already remade the face and completely remade the UV map, trying zelda's method unsuccessfully...
Thank you all anyways, it turned out great :D
Posted ImageSee for yourselves.

EDIT: also afterwards, I found an easier way to re-map it :/
Attached to this post:
Attachments: da_best.png (2.87 KB)
Edited by Magnar, Jun 10 2013, 08:09 AM.
roses are grey,
violets are grey,
im colorblind,
fml.
Offline Profile Quote Post Goto Top
 
zelda4evr
Member Avatar
Forum God
[ *  *  *  *  *  * ]
Gandalf20000
Jun 10 2013, 06:02 AM
You don't need to manually select and merge every vertex. Select all your vertices in edit mode, and open up the menu Mesh->Vertices->Remove Doubles.
You learn something new everyday. Every time a new version of blender comes out I end up having two versions on my computer as I'm learning the new one. There is definitely a heap for me to learn even though I consider myself above average with blender.

Posted Image
Offline Profile Quote Post Goto Top
 
Gandalf20000
Member Avatar
Geek
[ *  *  *  *  *  * ]
zelda4evr
Jun 10 2013, 08:19 AM
Gandalf20000
Jun 10 2013, 06:02 AM
You don't need to manually select and merge every vertex. Select all your vertices in edit mode, and open up the menu Mesh->Vertices->Remove Doubles.
You learn something new everyday. Every time a new version of blender comes out I end up having two versions on my computer as I'm learning the new one. There is definitely a heap for me to learn even though I consider myself above average with blender.
It's been in Blender as long as I've been using it, and I've been using it since 2.44 or 2.45, I think.
Offline Profile Quote Post Goto Top
 
zelda4evr
Member Avatar
Forum God
[ *  *  *  *  *  * ]
Gandalf20000
Jun 10 2013, 06:38 PM
It's been in Blender as long as I've been using it, and I've been using it since 2.44 or 2.45, I think.
I know, but there's always something new to learn even if it's an old feature.

Posted Image
Offline Profile Quote Post Goto Top
 
« Previous Topic · Off-topic · Next Topic »
Add Reply