Hello,
I’ve made a scene using Megascan items only. I used some foliage, but merge it as a Static Mesh. So I only have Static Mesh. I heard that glTF was the way to go to export a whole scene. It’s a little one, tho, a size of a 50*50 plane. Yet, I have (a lot of) those 3 different warnings:
1 - Maximum value (-1) used in indices accessor for mesh SM_CF_TreeFirLarge_A (section ), this may not be supported on some glTF viewers
2 - Material MTL_CF_TreeFirNeedles_Small uses mesh data from SM_CF_TreeFirSeedlings_C but the lightmap UVs (channel 1) are nearly 100% degenerate (in mesh section 0). Simple baking will be used as fallback
3 - Unsupported shading model (Two Sided Foliage) in material MTL_CF_TreeFirBranches, will export as Default Lit
And then, when I try to import it into Blender, half the level is loaded and a python error occurs. I suspect this is linked to the first error, but I am not sure. I found pretty much nothing on Google about that (relative to UE). Do you happen to know how to fix these warnings, what to look at?
Hi, this problem has been bothering me for two hours. I think I have found a temporary solution, but I don’t know why the source file has this issue. A more specific explanation still needs to be answered by experts
Firstly, identify the problematic SM_CF_TreeFirLarge_SA; Then, export it to a new location and import it again, so that my Unreal error disappears. I think this is related to the normal direction, but I can’t find any explanation. After exporting the problem grid with FBX, clearing all normal data, and then importing it back (which would damage usability), I replaced the original file of the static grid and re imported it, which would also cause this error to disappear
Hope to help you.
Hey, i also trapped in this problem for a long time. Tested in my computer, the original glb is can be import to blender, but when i import it into unreal, and export the same as glb. Then i import this new to blender, it got failed. I use vscode extension named gltf Tools to transfer glb to gltf and view its content. The error pos i got as image belowed. The next step i dont know about discovery this problem.
