Black fur render

We compare renders of the black fur of a dog under sunlight between our method (Ours), the ray optics model in PBRT-v3 plus forward diffraction (Ray+Diffraction), the ray optics model in PBRT-v3 (Ray) [1], the tabulated 2D model from Xia et al. 2020 (Table 2D) [2], and the tabulated 3D model (Table 3D).

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[1] Matt Jen-Yuan Chiang, Benedikt Bitterli, Chuck Tappan, and Brent Burley. 2016. A Practical and Controllable Hair and Fur Model for Production Path Tracing. Com- puter Graphics Forum 35, 2 (2016), 275–283.
[2] 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.