been facing some peculiar problem lately when I was unwrapping UV.
The UVs are fully "flat" and does seem to have any distortion. However, as you can see form the image. The checker looks completely distorted. I checked for stretching and It seem decent with no serious distortion. Hence, I have no idea what causes it.
- I use the add-on UV square to unwrap the UV
- the checker are from the add-on Texel Density.