Black hair render

We compare renders of black hair between our method (Ours) and the tabulated 2D model from Xia et al. 2020 (Table 2D) [1]. We demonstrate that our model is able to handle the cuticle tilt and the highlight shifts downwards along the fiber when the cuticle angle changes, while Xia et al. 2020 does not handle cuticles, thus no shift in the highlight. The two models produce a similar overall highlight for the no cuticle case, but our model additionally produces colorful glints on the hair.

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[1] Mengqi Xia, Bruce Walter, Eric Michielssen, David Bindel, and Steve Marschner. 2020. A wave optics based fiber scattering model. ACM Transactions on Graphics (TOG) 39, 6 (2020), 1–16.