US 11,756,258 B2
Techniques for ray cone tracing and texture filtering
Tomas Akenine-Moller, Lund (SE); Jakub Boksansky, Munich (DE); and Oli Wright, Northwich (GB)
Assigned to NVIDIA Corporation, Santa Clara, CA (US)
Filed by NVIDIA CORPORATION, Santa Clara, CA (US)
Filed on Sep. 7, 2022, as Appl. No. 17/930,378.
Application 17/930,378 is a continuation of application No. 17/039,574, filed on Sep. 30, 2020, granted, now 11,443,475.
Claims priority of provisional application 63/030,162, filed on May 26, 2020.
Claims priority of provisional application 63/022,033, filed on May 8, 2020.
Prior Publication US 2023/0005210 A1, Jan. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 15/06 (2011.01); G06T 1/20 (2006.01); G06T 3/40 (2006.01); G06T 15/00 (2011.01); G06T 15/04 (2011.01); G06T 15/10 (2011.01)
CPC G06T 15/06 (2013.01) [G06T 1/20 (2013.01); G06T 3/40 (2013.01); G06T 15/005 (2013.01); G06T 15/04 (2013.01); G06T 15/10 (2013.01)] 20 Claims
OG exemplary drawing
1. A computer-implemented method for computing a texture color, the method comprising:
determining a surface spread angle at a first point where a ray cone intersects a first surface within a graphics scene based on one or more differential barycentric coordinates at the first point;
determining, based on the surface spread angle, a width of a reflected ray cone at a second point where the reflected ray cone intersects a second surface within the graphics scene; and
computing the texture color based on the width of the reflected ray cone.