Umodel export to UDK T3DPGK format

[Gildor]

It looks like UT3 has no support for this format (too old UE3 version?)

What's the reason to support one more export format?

[DerPlaya78]

...not true for arkham asylum... (and udk)
It's impossible to recreate the smoothing groups 100%, but the results are visible...

The reason to support this format would be StaticMesh export.
This is not a request, only a suggestions, as I mentioned I'm only interested in BAA at the moment and have my own (not usable by others) tool for this.

[DerPlaya78]

I don't know exactly when this format was introduced but udk supports it and its based on t3d format which is supported since unreal engine 1...

I use only UDK (because Arkham Asylum has no editor...) so I don't know for sure...

Here is an example of a psk file exported by my tool...
http://www.sendspace.com/file/tpytcr

I'm at work now and can't post screenshots but there is a slight difference when you import this and a file exported with umodel into udk...

It looks closer to the mesh rendered when you use the normals stored in the package file...

The difference is mostly visible when importing StaticMeshes, SkeletalMesh import does some smoothing of it's own...

[DerPlaya78]

- my tool only extracts files, it's not a viewer (written in c#, hard to do a viewer...)

the normals for arkam asylum SkeletalMesh format are stored in the wedges:

struct Wedge
{
    Vector3 Position;
    int Tangent; // D3DCOLOR (expanded to float -1. - 1.)
    int Normal; // D3DCOLOR (expanded to float -1. - 1.)
    int BlendIndices; // D3DCOLOR or byte[4]
    int BlendWeights; // D3DCOLOR
    half U;  // is float when bUseFullPrecisionUV is true, not in BAA
    half V;  // is float when bUseFullPrecisionUV is true, not in BAA
}

I wondered what vertex merging algorithm you use, because all combinations which I tried yielded different results....

[DerPlaya78]

...now I understand why I have different vertex counts after merging... I was pulling my hair out , trying to get as close to your exported models as possible... I'm only interested in BAA and it uses the format i posted on all SkeletalMeshes I tried (and I think I tried them all)

Thanks for umodel anyway... at least I don't have to figure out the animation format myself

...I think smoothing groups are only used by StaticMeshes then...
When I import StaticMeshes in UDK they only look right if I assign Smoothing groups, merging Vertices is not enough (tried with ASE format and T3DPKG). I assumed this is the same for PSK files but perhaps it's enough to weld vertices for this format...

[DerPlaya78]

It's not in a very usable state right now (no gui or command line, started from directly from visual studio...) and it's very specific to arkham asylum. It reads the classes, enums etc. from engine.u and core.u etc., this is almost always different from game to game...
I can only post it as is, without any explanation or comment... if you know c# and find your way around (it's a bit bloated, alot of unused/untested/buggy stuff)...

http://www.sendspace.com/file/1dt9te

There are some UDK issues too:
- UDK import is a bit flaky, you can't import files bigger than a few MBs (testet 100MB), and after each import you have to restart UDK or it crashes with a out of memory exception...

- Some classes like texturecube, texturemovies, etc. have to imported differently because there is not T3DPKG format for them (.bik movies...)

Don't complain about the quality of the code or if you computer explodes by using it...
Also I don't have a lot of time lately, so no requests for features, bugfixes or documentation...

p.s.:
- main program is DumpPackage.
- it expects a 'list.txt' file with map names...
- you have to change the baseDir in Program.cs to a valid one...
- don't try it on UT3 or UDK, it won't work without changing stuff (checks engine version and cooker version)

edit:

new version (still source only), fixed some bugs (psk skeleton, flipped vertices y-axis so umodel psa files are compatible).

http://www.sendspace.com/file/31ojyy

some pics of stuff imported into udk:

http://img15.imageshack.us/img15/9800/skeletalmesh1.jpg
http://img222.imageshack.us/img222/1595/skeletalmesh2.jpg
http://img692.imageshack.us/img692/5939/skeletalmesh3.jpg
http://img15.imageshack.us/img15/8251/staticmesh1.jpg
http://img222.imageshack.us/img222/7793/staticmesh2.jpg