Holes in textures after exporting from RC and importing to Blender

Hey!

I did a photogrammetry using RC, then I simplified it from 41mln tris to 6mln tris, unwrapped and made a texture reprojection from 41mln tris model to this simplified model. Then I exported this simplified version(as fbx file) and imported it to Blender and everything worked fine.

After that I was curious to see how the 41 mln tris could look like and compare these two versions, so I exported the original 41mln tris version as fbx. too. But after importing it to Blender it has some weird texture “holes”. When I rotate the object, it seems like the texture is actually there, but I dont really understand what could be the cause of this weird look.

Added a screenshot, so the stone on the left is the 6mln tris and textures work fine, the right one is 41 mln tris and has this strange textures.

Thanks for any help!

Hey there @kiiral! Welcome to the community! That’s interesting! Originally I had though maybe before decimation the normals may have come out awkward on the photogrammetry, but looking at that artifacting it’s looking more like it’s being rendering incorrectly. Could you export the high poly out to say Unreal and see if it remains distorted? This should help isolate the issue a bit logically at least.

Hi @kiiral,

Could you please try using the OBJ format?
Also, disable backfaces in the Material Properties in Blender (Material Properties / Settings).