Patent ID: 11935194
Assignee: NVIDIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A system, comprising:
one or more processors; and
a memory storing instructions that, responsive to execution by the one or more processors, cause the system to:
determine a spherical polygon on a unit hemisphere;
determine, on a unit circle, a projected area corresponding to the spherical polygon on the unit hemisphere, wherein the unit circle is a base of the unit hemisphere, and wherein projection of the projected area is along a vector perpendicular to the unit circle;
determine a parameterization of the projected area of the spherical polygon on the unit circle;
generate samples in the projected area based on the parameterization according to a uniform distribution in the projected area; and
generate samples in the spherical polygon in a weighted cosine distribution, wherein the generated samples in the spherical polygon correspond to the samples in the projected area.