公开(公告)号：US20200051314A1

公开(公告)日：2020-02-13

申请号：US16101148

申请日：2018-08-10

Applicant: NVIDIA Corporation

Inventor： Samuli Laine ,  Tero Karras ,  Timo Aila ,  Robert Ohannessian ,  William Parsons Newhall, JR. ,  Greg Muthler ,  Ian Kwong ,  Peter Nelson ,  John Burgess

IPC: G06T15/06 ,  G06T17/00 ,  G06T15/00

Abstract: A hardware-based traversal coprocessor provides acceleration of tree traversal operations searching for intersections between primitives represented in a tree data structure and a ray. The primitives may include triangles used in generating a virtual scene. The hardware-based traversal coprocessor is configured to properly handle numerically challenging computations at or near edges and/or vertices of primitives and/or ensure that a single intersection is reported when a ray intersects a surface formed by primitives at or near edges and/or vertices of the primitives.