Bridge not working for some props

metaside

So I'm working on a new game project and wanted to import some assets from Daz today, but I encountered errors with props (the other problem is already solved).

1) For figure imports, I get a lot of error messages telling me the skeltetal mesh is missing bones, dozens or hundreds of messages when importing, completely breaking UE so I had to shut it down with the task manager. At first I thought it was because of additional eyebrows but that didn't change anything - might be related to specific clothing items I guess? (I figured this part out, it really was related to clothing items).

2) Prop imports are often not working giving error messages such as that "smoothing groups" have to be enabled in the FBX import, but I do not see such an option?

Any help is highly appreciated since I really want to keep and use these ILs!

Ellessarr

metaside said:

So I'm working on a new game project and wanted to import some assets from Daz today, but I encountered errors with props (the other problem is already solved).

1) For figure imports, I get a lot of error messages telling me the skeltetal mesh is missing bones, dozens or hundreds of messages when importing, completely breaking UE so I had to shut it down with the task manager. At first I thought it was because of additional eyebrows but that didn't change anything - might be related to specific clothing items I guess? (I figured this part out, it really was related to clothing items).

2) Prop imports are often not working giving error messages such as that "smoothing groups" have to be enabled in the FBX import, but I do not see such an option?

Any help is highly appreciated since I really want to keep and use these ILs!

"smooth groups" is not a direct related issue to daz to unreal bridge, its a "common" error", for unreal, it's a option which normally you enable when using maya or others 3d softwares, it's not a big deal, it's just a way to help unreal make things a "little more round", then since daz don't have that option you will get this error but even from "non daz stuffs" you can get this error, one way to fix would be export to any 3d editor then just use the smooth group function then save then export to unreal if you really want it, otherwise you can ignore it, at last for me it never was really any big deal.

https://answers.unrealengine.com/questions/116748/view.html

https://forums.unrealengine.com/development-discussion/content-creation/98173-ue4-and-smoothing-groups

 

if the mesh you are trying to import is already "round enough" then you really don't need to worry about it.

metaside

Ellessarr said:

"smooth groups" is not a direct related issue to daz to unreal bridge, its a "common" error", for unreal, it's a option which normally you enable when using maya or others 3d softwares, it's not a big deal, it's just a way to help unreal make things a "little more round", then since daz don't have that option you will get this error but even from "non daz stuffs" you can get this error, one way to fix would be export to any 3d editor then just use the smooth group function then save then export to unreal if you really want it, otherwise you can ignore it, at last for me it never was really any big deal.

https://answers.unrealengine.com/questions/116748/view.html

https://forums.unrealengine.com/development-discussion/content-creation/98173-ue4-and-smoothing-groups

 

if the mesh you are trying to import is already "round enough" then you really don't need to worry about it.

Thank you for the help! It seems to be equivalent to setting smoothing to faces in the geometry tab when exporting from Blender - gonna try it out soon!

David Vodhanel

It looks like the actual issue is the second warning (unable to triangulate).  Is that happening on an asset from the Daz Marketplace?  If so, can you paste a link?  I haven't run into that one before.

metaside

David Vodhanel said:

It looks like the actual issue is the second warning (unable to triangulate).  Is that happening on an asset from the Daz Marketplace?  If so, can you paste a link?  I haven't run into that one before.

Thanks, it happened with a few models, but this is the one from the screenshots - some of the models worked for the bridge, but not all:

https://www.daz3d.com/dystopian-desert-destruction-kit

I think "DD Medium Poly Building 2" did not work IIRC, or another building from it.

metaside

I encountered a different error with one of the two buildings that could be imported from the same set when trying to build lighting:

 

 

metaside

I tested it and the game can still be packaged, but I get a lot of warning messages because of overlapping UVs, see attachment for an example - here are two of the products listed in the example:

https://www.daz3d.com/survivors-wall-and-outpost

https://www.daz3d.com/city-ruins-bundle

It's only happening for props or architecture as it seems - never had such warnings for character-related stuff.

David Vodhanel

I think the UV warnings are actually issues within the prop itself.  I'm not sure if is causes a performance problem or a visual problem.

metaside

Thank you! All seemed fine in the editor and in the build so far, not sure aboutn performance issues...

DarkS474

There was an old plugin for UE4 that is now open source allowing to fix UV issues inside the engine (not updated anymore so it works up to 4.20, code probably needs updates for newer versions): https://gitlab.com/digilabs/UnrealUVUnwrap

Otherwise you should fix the meshes with other software packages like inside Blender using some plugins or with RizomUV or others like those.

 

metaside

DarkS474 said:

There was an old plugin for UE4 that is now open source allowing to fix UV issues inside the engine (not updated anymore so it works up to 4.20, code probably needs updates for newer versions): https://gitlab.com/digilabs/UnrealUVUnwrap

Otherwise you should fix the meshes with other software packages like inside Blender using some plugins or with RizomUV or others like those.

Thanks, but how to fix it? Is a simple auto-unwrap in Blender enough?

And is it even a real problem? After my last posts I encountered the same error messages in another level from items I got for free on the Epic marketplace (the awesome complete factory that was free for a while).

Maybe I try going through Blender for the problem described in the first post with the smoothing groups...

metaside

I just read a bit on it and it seems as if the main problem would be that the shadows might be wrong when stationary lighting is baked into textures with overlapping UVs...