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BUG - Vertex Anim tool does not overwrite files

Assuming the tool is created by someone from Epic, I just noticed something which caused me much frustration the past week.

Apparently the vertex animation tool ( https://docs.unrealengine.com/latest/INT/Engine/Animation/Tools/VertexAnimationTool/index.html ) Does not overwrite existing files, so if I tweak an animation and re-export it, overwrite the existing EXR file.. it wont save it, nor the normal map one.

3dsmax 2015, using the animated meshes option.

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asked Oct 06 '15 at 01:28 PM in Bug Reports

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avatar image Tim Hobson ♦♦ STAFF Oct 14 '15 at 09:22 PM

Hey Luos, Just wanted to let you know this is on my list of things to get to, but I've not had a chance to just yet. I'll let you know once I get this tested and reported. If I have any issues reproducing I'll check back with you. Thanks for your patience.


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Hi Luos,

When I tested this everything has reimported for me as I would expect. The animation updated in real-time as well.

Maybe I'm missing something that you've done in your steps?

I used the timeline mesh as my test since that specifically has the exr and texture file. I set up the material and applied, all using the docs how-to.

Once setup I went back to my Max file, and changed the animation on one of the 4 morphs. I updated this in the morpher and tested the animation in my time line scrub to make sure it took. I then generated the new textures using the max script for vertex animation.

I reimported these files into UE4 and everything updated automatically.

If this is not your process please let me know and the steps you have used.



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answered Oct 20 '15 at 06:09 PM

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Tim Hobson ♦♦ STAFF
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avatar image Luos Oct 26 '15 at 12:41 AM

Hey Tim, I currently cant seem to get the bug working again. If I do come across it again ill record it and update post.

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