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Crash after import FBX with Materials/Visual Problem


I have problem with Unreal Engine Editor. When i try to import an FBX with materials and textures (Environments or Characters) The editor crash.

If i toggle off "import Materials" the import go fine with some errors

This not happend with all the FBX but with the fbx imported fine i have visualization problem. I see wrong the texture applied on the model(example: Black area on th texture, strange deformed texture.)

I have already import this models on other engines and they work fine. is possible have help?

There is a guide to import correct the model? Thanks.

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asked Mar 20 '14 at 03:18 AM in Bug Reports

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4 answers: sort voted first

I've fixed both your issues in code and it should be fixed in the next update. You can work around these for now doing the following:

  1. For your character mesh you have materials and textures that are named the same thing. You cannot import a material and texture with the same name to the same location. Now it will create a unique name for any textures found to be the same name as the material. You can fix this on your end by renaming your textures to not have the same name as the material or each other.

  2. There is no size limit for your model but you can only have 64 materials per mesh. This is to avoid a huge number of draw calls. I would suggest you break this model up into smaller pieces if you require that many materials.

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answered Mar 24 '14 at 06:42 PM

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If you are using Any Autodesk software,be sure to use 2013 FBX when exporting.

Edu Cazev

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answered Mar 20 '14 at 03:54 AM

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avatar image ps2invader Mar 20 '14 at 07:32 AM

Yes i use 3dsmax and Maya to work on model. I try to export them in 2013/2012 FBX Format but the editor crash again

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Thanks for your report. Could you attach a sample test asset that causes this crash that you wouldn't mind sharing?


Ben Halliday

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answered Mar 20 '14 at 02:05 PM

avatar image ps2invader Mar 20 '14 at 02:30 PM

Yes i have model one for Characters one for Environments

this is a test character with animation/bones


this is a Big Environment (crash with and without import material)


Thanks (I take it on internet to test)

avatar image Ben Halliday STAFF Mar 20 '14 at 05:16 PM

I've entered a report for the crashes you're experiencing. It sounds like there are errors in the files you're importing, but it shouldn't be crashing the editor. I'm glad you were able to find a workaround for one of them!

I suspect the problems you are having involve the way you're exporting your FBX files. Your second FBX file (Re2First.FBX) is not too large for the editor, so the problem probably lies somewhere else in the FBX.

Have you gone through the import documentation on the Unreal Engine site? https://docs.unrealengine.com/latest/INT/Engine/Content/FBX/StaticMeshes/index.html

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i resolve one of the problem i think

i see the guide to import an FBX and i notice my model not have material named with skin## method

I have renamed the material with _skin## and now import with material work (Characters)

But the model come without texture place on that, and in the viewer every material is set to "None"

for the Environments the problem remain i need to import big scene and if crash with large model is not good for me.

there is a size limit for model?


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answered Mar 20 '14 at 03:01 PM

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