I expected distortion, but . . .
I made a simple 8x8 segments (major & minor radii both 1) torus primitive, default UV, color grid texture. I expect going from the UV squares to this trapezoidal face, all of the squares in it would distort to trapezoids. Instead some of them did, but most distorted to parallelograms, and I’ve no idea why. Help?
DistortionTextureTorus003.blend (503 KB)