Importing vertex colour from Max problem

capone

I can get vertex colour info to correctly display in Unreal4 via my 3DSmax FBX exporter. Problem is that if I make a change to the vertex colours (in max), export and then select on the prop in Unreal4 and select reimport, it changes but not correctly. Then if I force delete that mesh and drag my FBX into Unreal4 to make a new prop the latest vcol changes show correctly.

Any ideas what I can do to make 'reimport' work with vcolours better?

Vailias

It sounds like the vertex numbers are changing when you paint, but on reimport its just getting the positional and color data for those same vertices rather than updating the entire mesh data.
Is the vertex paint modifier the very last one in your stack in max?

capone

Yes, it's at the top. Should I be collapsing it before exporting?

aphexx

are you sure that you checked "Replace Vertex Colors" in the importer dialog of the unreal engine?

capone

That dialogue doesn't appear when I right click > reimport on the prop. I deleted it again and dragged in the file so this dialogue would appear. I didn't have that tick box enabled before but I do now. Hopefully it keeps that option checked now, even for reimports. Thanks either way!

aphexx

do not reimport or delete anything. just click on the standard "import" again and just import the same file. it will ask you if it should overwrite the asset, which you will confirm. then you'll get all the dialog splendor you need.