公开(公告)号：US12175588B2

公开(公告)日：2024-12-24

申请号：US17674785

申请日：2022-02-17

Applicant: NVIDIA CORPORATION

Inventor： Herman Hansson Soederlund ,  Tomas Akenine-Moller

IPC: G06T15/06 ,  G06T15/00 ,  G06T15/10

Abstract: One embodiment of a method for rendering one or more graphics images includes tracing one or more rays through a graphics scene; storing one or more hit points based on one or more coordinate frames associated with one or more voxels of a grid, where the one or more rays intersect one or more surfaces of geometry in the one or more voxels; and rendering one or more graphics images based on the one or more hit points that are stored.

公开(公告)号：US12229869B2

公开(公告)日：2025-02-18

申请号：US17329737

申请日：2021-05-25

Applicant: NVIDIA CORPORATION

Inventor： Tomas Akenine-Moller ,  Jakub Boksansky

IPC: G06T15/06 ,  A63F13/52 ,  G06T15/04

Abstract: One embodiment of a method rendering one or more graphics images includes tracing a ray cone through a three-dimensional (3D) graphics scene, generating a refracted ray cone based on the ray cone and a two-dimensional (2D) coordinate frame, and rendering a graphics image based on the refracted ray cone.

公开(公告)号：US20240378792A1

公开(公告)日：2024-11-14

申请号：US18661448

申请日：2024-05-10

Applicant: NVIDIA Corporation

Inventor： Karthik Vaidyanathan ,  Marco Salvi ,  Bartlomiej Wronski ,  Tomas Akenine-Moller ,  Johan Pontus Ebelin ,  Aaron Eliot Lefohn ,  John Matthew Burgess ,  Steven James Heinrich ,  Michael Alan Fetterman ,  Shirish Gadre ,  Mark Alan Gebhart ,  Yury Uralsky

IPC: G06T15/04 ,  G06V10/44 ,  H04N19/40 ,  H04N19/91

Abstract: In computer graphics, texture refers to a type of surface, including the material characteristics, that can be applied to an object in an image. A texture may be defined using numerous parameters, such as color(s), roughness, glossiness, etc. In some implementations, a texture may be represented as an image that can be placed on a three-dimensional (3D) model of an object to give surface details to the 3D object. To reduce a size of textures (e.g. for storage and transmission), textures in a texture set may be compressed together. The present disclosure provides for transcoding a compressed texture set to textures with a hardware-supported compression format.

公开(公告)号：US20240378759A1

公开(公告)日：2024-11-14

申请号：US18661421

申请日：2024-05-10

Applicant: NVIDIA Corporation

Inventor： Karthik Vaidyanathan ,  Marco Salvi ,  Bartlomiej Wronski ,  Tomas Akenine-Moller ,  Johan Pontus Ebelin ,  Aaron Eliot Lefohn ,  John Matthew Burgess ,  Steven James Heinrich ,  Michael Alan Fetterman ,  Shirish Gadre ,  Mark Alan Gebhart ,  Yury Uralsky

IPC: G06T9/00 ,  G06T15/00

Abstract: In computer graphics, texture refers to a type of surface, including the material characteristics, that can be applied to an object in an image. A texture may be defined using numerous parameters, such as color(s), roughness, glossiness, etc. In some implementations, a texture may be represented as an image that can be placed on a three-dimensional (3D) model of an object to give surface details to the 3D object. To reduce a size of textures (e.g. for storage and transmission), textures in a texture set may be compressed together. The present disclosure provides for decompression of at least a portion of a single texture representation of a set of textures into at least a portion of a plurality of textures included in the set of textures.

公开(公告)号：US11823319B2

公开(公告)日：2023-11-21

申请号：US17674789

申请日：2022-02-17

Applicant: NVIDIA CORPORATION

Inventor： Herman Hansson Soederlund ,  Alex Evans ,  Tomas Akenine-Moller

IPC: G06T15/06 ,  G06T15/10 ,  G06T15/60 ,  G06T15/00

CPC classification number: G06T15/06 ,  G06T15/005 ,  G06T15/10 ,  G06T15/60

Abstract: One embodiment of a method for rendering one or more graphics images includes tracing one or more rays through a graphics scene; computing one or more surface normals associated with intersections of the one or more rays with one or more surfaces, where computing each surface normal includes: computing a plurality of intermediate surface normals associated with a plurality of adjacent voxels of a grid, and interpolating the plurality of intermediate surface normals; and rendering one or more graphics images based on the one or more surface normals.

公开(公告)号：US11443475B2

公开(公告)日：2022-09-13

申请号：US17039574

申请日：2020-09-30

Applicant: NVIDIA CORPORATION

Inventor： Tomas Akenine-Moller ,  Jakub Boksansky ,  Oli Wright

IPC: G06T15/06 ,  G06T15/04 ,  G06T15/00 ,  G06T1/20 ,  G06T3/40 ,  G06T15/10

Abstract: One embodiment of a method for computing a texture color includes tracing a ray cone through a graphics scene, determining a curvature of a first surface within the graphics scene at a point where the ray cone hits the first surface based on differential barycentric coordinates associated with the point, determining, based on the curvature of the first surface, a width of the ray cone at a subsequent point where the ray cone hits a second surface within the graphics scene, and computing a texture color based on the width of the ray cone.

公开(公告)号：US10600232B2

公开(公告)日：2020-03-24

申请号：US16022506

申请日：2018-06-28

Applicant: NVIDIA Corporation

Inventor： Tomas Akenine-Moller ,  Robert Toth ,  Magnus Andersson ,  Jim Kjell David Nilsson

IPC: G06T15/06 ,  G06T15/80 ,  G06T15/10 ,  G06T11/00 ,  G06T15/00

Abstract: A texture level of detail (LOD) approximation may be performed utilizing ray differentials and a G-buffer. For example, a scene to be rendered is identified, and a G-buffer of the scene is rendered. Additionally, ray tracing is started for the scene, and during the ray tracing, a ray differential is created by accessing the G-buffer. Further, the created ray differential is appended to a current ray, and the created ray differential is traced.

公开(公告)号：US20190236830A1

公开(公告)日：2019-08-01

申请号：US16010316

申请日：2018-06-15

Applicant: NVIDIA Corporation

Inventor： Tomas Akenine-Moller ,  Robert Toth ,  Magnus Andersson

IPC: G06T15/04 ,  G06T15/06 ,  G06T15/10

Abstract: A method, computer readable medium, and system are disclosed for performing a texture level-of-detail approximation. The method includes the steps of identifying a scene to be rendered, projecting a ray passing through a pixel of a screen space, resulting in a first hit point at a geometry element within the scene, determining a footprint angle of the pixel, determining a curvature measure for the geometry element at the first hit point within the scene, computing a texture level of detail (LOD) approximation for a component of the scene, utilizing the footprint angle of the pixel and the curvature measure for the geometry element, and performing, utilizing a hardware processor, one or more rendering operations for the scene, utilizing the texture LOD approximation.