Today I bought a pretty good 3D model of SIG Sauer MCX. I imported it into roblox and noticed that textures that should be 4k (their original size is 4096x4096) looks very blurry and awful:
One of the original texture:
I tried descaling the image to 2048x2048 and 1024x1024 + tried upscaling it till 6144x6144 resolution but none if this helped (2048 and 1024 made it even worse)
If you have any idea how to fix this, I will be very grateful.