anyone know what this dialog means upon import

Gateway · 11-05-2009, 10:15 PM

tested some imports of objects from maya into the new udk 3... but im seeing something that isn't quite clear as to what the issue is or what it wants to have happen.

vj_box · 11-06-2009, 03:31 AM

Quote:

Originally Posted by Gateway

tested some imports of objects from maya into the new udk 3... but im seeing something that isn't quite clear as to what the issue is or what it wants to have happen.

I don't think this version shoud have any poly limit restrictions like the UT3-Ed had.

Gateway · 11-06-2009, 01:57 PM

yea no idea, we keep getting this each time we import a model.. 1335 tris, 2048 verts for example. directly from maya

Daniel Vogel · 11-06-2009, 03:01 PM

It means your 7600 vertex count mesh ended up being 16104 in the engine, which is a tad more than we'd expect. In most cases it means that you might want to check your source content. An artist would have to reply with the details. It's safe to ignore if you don't care about vertex count ;-)

Crozz · 11-06-2009, 11:49 PM

I have several models I created myself, many of them pretty simple like a chair or a bucket, but I always get these messages and the vertex count usually close to doubles in number. What do I have to check in the original model (using max)? They all seem pretty clean to me. I've tried to import both with and without a collision mesh to check if that had any impact, but no difference.
Also, are there any performance issues if I ignore this?

JackyBoy · 11-07-2009, 09:19 AM

I read about this, and you check the second box when importing don't you? which lowers it by quite a lot. But is another way to reduce it by doing things like tri stripping? and triangulating it yourself really efficiently?

Norman3D · 11-12-2009, 08:28 PM

This message means that your vertex count is higher than expected. You can have the same triangle count 2 staticmeshes, yet have more vertices in one. It all depends on the smoothing groups. If you have 2 smoothing groups, vertices need to split, so that their normals can point at different directions... if it's the same smoothing group you would only need one vertice pointing at one direction.
Beware, what really matters is vertex count, not triangle count. Vertex count will increase the resource size.

Xero · 11-14-2009, 04:37 AM

Ah yes Norman3D is right. I imported a simple cylinder mesh and got scare for a sec by that same message.
For me it's best to ignore it for simple models, as for more complex models you might want to optimize your smoothing groups if the vertex counts get too high.

JackyBoy · 11-14-2009, 08:31 AM

yeah, although there are alot of things that can contribute to it.
Everytime there is a new smoothing group another vert is made there, or if your UVs are split then that will create a new vert there. Another reason is if it isn't tri-stripped correctly, every time it needs to start a new strip it will create another. If i'm not mistaken vertex colour also does it.

So if you really want to optimise look into all of them

11-05-2009, 10:15 PM	#1
Gateway Member Join Date: Dec 2007 Posts: 53	anyone know what this dialog means upon import tested some imports of objects from maya into the new udk 3... but im seeing something that isn't quite clear as to what the issue is or what it wants to have happen. __________________ ---- Gateway Personal Blog - I Bare It All

11-06-2009, 01:57 PM	#3
Gateway Member Join Date: Dec 2007 Posts: 53	yea no idea, we keep getting this each time we import a model.. 1335 tris, 2048 verts for example. directly from maya __________________ ---- Gateway Personal Blog - I Bare It All

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11-06-2009, 03:01 PM	#4
Daniel Vogel Administrator Join Date: Jan 2002 Location: Raleigh Posts: 181	It means your 7600 vertex count mesh ended up being 16104 in the engine, which is a tad more than we'd expect. In most cases it means that you might want to check your source content. An artist would have to reply with the details. It's safe to ignore if you don't care about vertex count ;-)

11-06-2009, 11:49 PM	#5
Crozz Senior Member Join Date: Nov 2007 Posts: 124	I have several models I created myself, many of them pretty simple like a chair or a bucket, but I always get these messages and the vertex count usually close to doubles in number. What do I have to check in the original model (using max)? They all seem pretty clean to me. I've tried to import both with and without a collision mesh to check if that had any impact, but no difference. Also, are there any performance issues if I ignore this?

11-07-2009, 09:19 AM	#6
JackyBoy Member Join Date: Jan 2009 Posts: 48	I read about this, and you check the second box when importing don't you? which lowers it by quite a lot. But is another way to reduce it by doing things like tri stripping? and triangulating it yourself really efficiently?

11-12-2009, 08:28 PM	#7
Norman3D Junior Member Join Date: May 2009 Posts: 19	This message means that your vertex count is higher than expected. You can have the same triangle count 2 staticmeshes, yet have more vertices in one. It all depends on the smoothing groups. If you have 2 smoothing groups, vertices need to split, so that their normals can point at different directions... if it's the same smoothing group you would only need one vertice pointing at one direction. Beware, what really matters is vertex count, not triangle count. Vertex count will increase the resource size.

11-14-2009, 08:31 AM	#9
JackyBoy Member Join Date: Jan 2009 Posts: 48	yeah, although there are alot of things that can contribute to it. Everytime there is a new smoothing group another vert is made there, or if your UVs are split then that will create a new vert there. Another reason is if it isn't tri-stripped correctly, every time it needs to start a new strip it will create another. If i'm not mistaken vertex colour also does it. So if you really want to optimise look into all of them