Professsor Ren said that this was because the surface normal has only one non-zero value in x, y, z. A little confused because then I want to say the vector is (1, 0, 0) by symmetry, but that vector is parallel to the x-axis.

briana-jin-zhang

So what is the vector? Are we supposed to be just looking at it in 2D instead?

Professsor Ren said that this was because the surface normal has only one non-zero value in x, y, z. A little confused because then I want to say the vector is (1, 0, 0) by symmetry, but that vector is parallel to the x-axis.

So what is the vector? Are we supposed to be just looking at it in 2D instead?