problems with assets imported from blender

Development Getting Started & Setup
,
1

Hi everyone, although I checked the normals and the geometries should be correct (in any case there are more than 400 assets), the assets that I import from blender to unreal are problematic, with intermittent view and many graphic glitches, does anyone have an idea how to solve it? ()

2

Hi Akybor, Welcome to the Forums,

Now that you’ve made your first post I think you should be able to attach images.

The fact that you mentioned the word ‘intermittent’ is concerning, can you link these glitches to any specific circumstances?

3

thanks for the reply, the forum still won’t let me upload anything, so I put it on Vimeo to share it, also I would like to say some clarifications:
the materials need to be reset, but the UV maps are ok(unlike a few), which is great.
All objects, unlike a few, have these glitches if I get close or move near them

vimeo.com/user208379869/

4

Thanks for the video.

I haven’t ever seen anything like that!

A few things come to mind though:

Are the pivot points of the meshes near the meshes? (It’s ok if they all share 1 pivot, as long as that pivot is near/central to the structures)

Also in your mesh there is a ‘Positive and Negative Bounds Extension’ that you could increase. (My thought being that these are getting culled/unculled somehow)

I wonder if this is related to Nanite at all, try disabling Nanite in project settings, or the flipside of that idea - try turning on ‘Enable Nanite Support’ in the meshes.

5

thanks for the suggestions, I fixed the pivots but the problem continues, I will try to do some tests for the bounds extensions and for Nanite. In the meantime I noticed that if I import by selecting “scene fbx” instead of “all files” then it works quite well, even if in this case collisions don’t work, perhaps because importing the scene as a single element creates a huge collision?
I’ll post the video here too:

6

seems the problem is collision not correct.
you can generate collision by yourself.
and the another problem is mesh overlape, you can check your mesh in blender, try to merge vertex or check mesh overlape, even check normal flip.

7

thank you, I followed your advice and redid all the collisions, however importing with “fbx scene” solves almost all the problems, there are a few things left that I’m trying to solve.
Thank you all for the support, importing from Blender is harder than I had thought

1 Like