Need a little help with Unity 3D

gannonroader · Nov 2009

I made some trees in max. They're scaled and positioned properly in space. When I bring them into unity everything seems fine, and if I place them as individual meshes, everything seems fine. But if I try adding them as a tree, and using the "Place tree" tool, all of my trees are rotated 90 degrees.

Heres a screen.

http://i647.photobucket.com/albums/uu192/gannonroader/tree_problem.jpg?t=1258391463

It's not only with this particular tree either, it's every one I've tried so far not counting the default palm tree in unity(which works great).

Ryno · Nov 2009

Max is Z axis up. Maya is Y axis up. I'm guessing Unity is Y up as well. Check if there is an option for flipping the up axis on your exporter.

gannonroader · Nov 2009

hmmm. maybe. I'll mess around.

gannonroader · Nov 2009

Yeah, theres no such option, and would also probably be off axis on import, rather then only when using this tool.

commander_keen · Nov 2009

I havent really used the build in terrain geo painting stuff but it is the fact that max is z-up. I think the problem is that the terrain geo just looks directly at the model and doesnt care about the objects transform that the model is attached to.

You can rotate the tree model so that it faces in the y axis and then reset xforms, then rotate it back and export and it should line up correctly.

funshark · Nov 2009

FBX exporter has such option.

Ryno · Nov 2009

What formats can Unity import? Does it have a specific exporter/importer plugin, or can you use .fbx, .ase, etc.?

funshark · Nov 2009

Ryno : just take a look at the Unity website

http://unity3d.com/unity/features/asset-importing

gannonroader · Nov 2009

well I tried everything you guys are suggesting and nothing worked. It's only when using this tool. Other objects are oriented fine, and even if I place the trees by hand, its fine, they come in on the proper axis as far as I can tell.

gannonroader · Nov 2009

Even tried the .fbx exporting. Didn't work.

funshark · Nov 2009

so it's not an export issue but a tool issue..
I'm trying the tool right now but I've never had an hand on it before; I'm discovering

gannonroader · Nov 2009

Yeah, and when using it, try using a tree you made yourself. The one in the engine as an example "palm" works perfectly. It's only the trees I made.

[iWi] · Nov 2009

tuto how to import into Unity 3D -
http://unity3d.com/support/documentation/video/5.html

************************

I have not a problem to import the mesh " Berseker" into Unity 3D (3DS max 2009 file ), but I've got some trouble with normal map , even applyed to the new shader with diff. map - I don't see the bump in a Real Time -Game .

:poly127::poly127::poly127:

commander_keen · Nov 2009

The reason why it appears fine when you drag the export file prefab into the scene is because it automatically rotates that prefab 270 degrees on x. You want to export it so that if the rotation of this group is (0,0,0) the tree is facing up.

funshark · Nov 2009

[iWi] > I think you have to create a light with pixel lighting instead of ( default ) vertex lighting.
Just check the properties of the light(s)

funshark · Nov 2009

gannonroader > i've tried with a character mesh I've had already in Unity and there was no problem at all ( but I'm using Maya, where the Y is up ).

Try to check again your Xform in Max... or put your scene/object here.

[iWi] · Nov 2009

funshark wrote: »

[iWi] > I think you have to create a light with pixel lighting instead of ( default ) vertex lighting.
Just check the properties of the light(s)

Oi , merci beaucoup parisien, je vais jeter un coup d'oeil.

I will look at this.
Thanks.

gannonroader · Nov 2009

Heres a little update guys. None of that stuff worked. Rotating, and exporting with the Y being the up and down axis, none of that made a difference, and the effect is always the exact same no matter what.

What I did try tho and had some success with was exporting as a .3ds file. I just had to adjust the scale within unity because for some reason it makes the mesh humongous. I got all of my trees in, but 1 and the error i'm getting is

Render.Texture.create:failed and then I think it says "needs to be larger than 0". It also turns all of the other trees in the scene into planes. Really weird, and really annoying.

Davision3D · Nov 2009

I had the same problem before and ended up rotateing the trees in max so that they are fitting in unity terrain. Could be that you also need to import them new and also set them new into your terrain, cant really remember how i got it working.

funshark · Nov 2009

gannonroader> can you send me the mesh you're trying to export by mail or simply put it here?
It will be more easy to find where the issue is.

Bizkit001 · Aug 2011

gannonroader wrote: »

Heres a little update guys. None of that stuff worked. Rotating, and exporting with the Y being the up and down axis, none of that made a difference, and the effect is always the exact same no matter what.

What I did try tho and had some success with was exporting as a .3ds file. I just had to adjust the scale within unity because for some reason it makes the mesh humongous. I got all of my trees in, but 1 and the error i'm getting is

Render.Texture.create:failed and then I think it says "needs to be larger than 0". It also turns all of the other trees in the scene into planes. Really weird, and really annoying.

Dude,
Try going into the tree's Hierarchy in max, Select affect Pivot only and rotate the pivot so that y is pointing up,

Maybe this helps
Regards.

Need a little help with Unity 3D

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