公开(公告)号：US20250005838A1

公开(公告)日：2025-01-02

申请号：US18345406

申请日：2023-06-30

Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

Inventor： Michal Adam Wozniak ,  Guennadi Riguer

IPC: G06T15/00 ,  G06T15/04

Abstract: A technique for rendering is provided. The technique includes generating a first gradient for a shade space texture tile, wherein the first gradient reflects a relationship between shade space texel spacing and screen space pixel spacing; generating a second gradient for a shade space texel of the shade space texture tile, wherein the second gradient reflects a relationship between material texel spacing and shade space texel spacing; combining the first gradient and the second gradient to obtain a third gradient; and performing anisotropic filtering on the material texture using the third gradient to obtain a value for the shade space texel.

公开(公告)号：US20250005849A1

公开(公告)日：2025-01-02

申请号：US18345378

申请日：2023-06-30

Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

Inventor： Guennadi Riguer ,  Michal Adam Wozniak

IPC: G06T15/80 ,  G06T15/04

Abstract: A technique for rendering is provided. The technique includes determining a first correspondence between a screen space and a shade space in a visibility pass; selecting a size for a shade space tile based on the correspondence between the screen space and the shade space; and shading the shade space tile based on the material texture correspondence.

公开(公告)号：US20250005841A1

公开(公告)日：2025-01-02

申请号：US18345460

申请日：2023-06-30

Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

Inventor： Michal Adam Wozniak ,  Guennadi Riguer

IPC: G06T15/04 ,  G06T7/73

Abstract: A technique for sampling a primitive ID map. The technique includes identifying a sample point having a location in a texture space; obtaining a primitive ID sample from the primitive ID map based on the location of the sample point in the texture space; identifying a primitive based on the primitive ID; testing the location in the texture space for inclusion within the identified primitive; and selecting either the primitive ID or a different primitive ID based on the testing.

公开(公告)号：US20250005840A1

公开(公告)日：2025-01-02

申请号：US18345427

申请日：2023-06-30

Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

Inventor： Guennadi Riguer ,  Michal Adam Wozniak

IPC: G06T15/04 ,  G06T3/40

Abstract: A technique for texture filtering. A transition is made from a first mipmap corresponding to a first texture resolution to a second mipmap corresponding to a second texture resolution. The first texture resolution is lower than the second texture resolution. As compared to standard trilinear filtering, initiation of the transition is delayed by an offset (or bias), which serves to delay the initial use of the second mipmap until it has been loaded. Following initiation of the transition, first and second weightings are selected with a nonlinear filter, and the system interpolates between the first mipmap and the second mipmap by applying the weightings. During an initial portion of the transition, the nonlinear filter has a slope that is higher than that of the standard trilinear filter.