Differentiable Forward Rendering in DPIR
-(a) For each 3D point, its position is used as a query for the diffuse-albedo MLP $\Theta_d$, SDF MLP $\Theta_\text{SDF}$, and specular-basis coefficient MLP $\Theta_c$. The specular-basis BRDF MLP $\Theta_s$ models specular-basis reflectance, given the incident and outgoing directions $\boldsymbol{\omega_{i}}$ and $\boldsymbol{\omega_{o}}$. @@ -231,11 +231,11 @@
Differentiable Forward Rendering in DPIR
Regualrized basis BRDF
-We utilize regularized basis BRDF representation to estimate accurate spatially-varying BRDFs from limited light-view angular samples. We visualize the BRDFs on unit spheres illuminated by a point light source. @@ -254,11 +254,11 @@
Regualrized basis BRDF
Point-based Visibility Test
-(a) For each 3D point, its position is used as a query for the diffuse-albedo MLP $\Theta_d$, SDF MLP $\Theta_\text{SDF}$, and specular-basis coefficient MLP $\Theta_c$. The specular-basis BRDF MLP $\Theta_s$ models specular-basis reflectance, given the incident and outgoing directions $\boldsymbol{\omega_{i}}$ and $\boldsymbol{\omega_{o}}$.