公开(公告)号：US20240104844A1

公开(公告)日：2024-03-28

申请号：US17955490

申请日：2022-09-28

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

Inventor： Sho Ikeda ,  Paritosh Vijay Kulkarni ,  Takahiro Harada

IPC: G06T17/10 ,  G06T15/06 ,  G06T17/00

CPC classification number: G06T17/10 ,  G06T15/06 ,  G06T17/005 ,  G06T2210/12 ,  G06T2210/21

Abstract: Devices and methods for multi-resolution geometric representation for ray tracing are described which include casting a ray in a space comprising objects represented by geometric shapes and approximating a volume of the geometric shapes using an accelerated hierarchy structure. The accelerated hierarchy structure comprises first nodes each representing a volume of one of the geometric shapes in the space and second nodes each representing an approximate volume of a group of the geometric shapes. When the ray is determined to intersect a bounding box of a second node representing one group of the geometric shapes, a selection is made between traversal and non-traversal of other second nodes based on a LOD for representing the volume of the one group of geometric shapes.

公开(公告)号：US20220198739A1

公开(公告)日：2022-06-23

申请号：US17129766

申请日：2020-12-21

Applicant: Advanced Micro Devices, Inc.

Inventor： Skyler Jonathon Saleh ,  Maxim V. Kazakov ,  Swapnil P. Sakharshete ,  Takahiro Harada ,  Vineet Goel

IPC: G06T15/06 ,  G06T15/00

Abstract: A technique for performing ray tracing operations is provided. The technique includes performing bounding volume hierarchy (“BVH”) traversal in multiple accelerated processing devices (“APDs”), utilizing bounding volume hierarchy data copies in memories local to the multiple APDs; rendering primitives determined to be intersected based on the BVH traversal, using geometry information and texture data spread across the memories local to the multiple APDs; and storing results of rendered primitives for a set of tiles assigned to the multiple APDs into tile buffers stored in APD memories local to the APDs.

公开(公告)号：US20210027525A1

公开(公告)日：2021-01-28

申请号：US17068342

申请日：2020-10-12

Applicant: Advanced Micro Devices, Inc.

Inventor： Takahiro Harada ,  Jerry McKee ,  Jason Yang

IPC: G06T15/40 ,  G06T15/80 ,  G06T15/50

Abstract: A method for enhanced forward rendering is disclosed which includes a depth pre-pass, light culling and a final shading. The depth pre-pass minimizes the cost of final shading by avoiding high pixel overdraw. The light culling stage calculates a list of light indices overlapping a pixel. The light indices are calculated on a per-tile basis, where the screen has been split into units of tiles. The final shading evaluates materials using information stored for each light. The forward rendering method may be executed on a processor, such as a single graphics processing unit (GPU) for example.

公开(公告)号：US20130328873A1

公开(公告)日：2013-12-12

申请号：US13892712

申请日：2013-05-13

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Takahiro Harada ,  Jerry McKee ,  Jason Yang

IPC: G06T15/40 ,  G06T15/80

CPC classification number: G06T15/405 ,  G06T15/40 ,  G06T15/506 ,  G06T15/80

Abstract: A method for enhanced forward rendering is disclosed which includes a depth pre-pass, light culling and a final shading. The depth pre-pass minimizes the cost of final shading by avoiding high pixel overdraw. The light culling stage calculates a list of light indices overlapping a pixel. The light indices are calculated on a per-tile basis, where the screen has been split into units of tiles. The final shading evaluates materials using information stored for each light. The forward rendering method may be executed on a processor, such as a single graphics processing unit (GPU) for example.

Abstract translation: 公开了一种用于增强前向渲染的方法，其包括深度预通，光剔除和最终阴影。 通过避免高像素过度抽取，深度预通行最小化最终着色的成本。 光剔除阶段计算与像素重叠的光指数的列表。 光指数以每瓦片为基础计算，其中屏幕已经被分割成瓦片的单位。 最终的阴影使用为每个灯存储的信息来评估材料。 前向渲染方法可以在诸如单个图形处理单元（GPU）的处理器上执行。

公开(公告)号：US20250005842A1

公开(公告)日：2025-01-02

申请号：US18345538

申请日：2023-06-30

Applicant: Advanced Micro Devices, Inc.

Inventor： Shin Fujieda ,  Takahiro Harada ,  Chih-Chen Kao

IPC: G06T15/06

Abstract: A technique for performing ray tracing operations is provided. The technique includes traversing a bounding volume hierarchy for a ray to arrive at a bounding box without use of a neural network; perform a feature vector lookup using modified polar coordinates characterizing the ray relative to the bounding box to obtain a set of feature vectors; and obtaining output with the neural network using the set of feature vectors.

公开(公告)号：US10803655B2

公开(公告)日：2020-10-13

申请号：US13892712

申请日：2013-05-13

Applicant: Advanced Micro Devices, Inc.

Inventor： Takahiro Harada ,  Jerry McKee ,  Jason Yang

IPC: G06T15/40 ,  G06T15/80 ,  G06T15/50

Abstract: A method for enhanced forward rendering is disclosed which includes a depth pre-pass, light culling and a final shading. The depth pre-pass minimizes the cost of final shading by avoiding high pixel overdraw. The light culling stage calculates a list of light indices overlapping a pixel. The light indices are calculated on a per-tile basis, where the screen has been split into units of tiles. The final shading evaluates materials using information stored for each light. The forward rendering method may be executed on a processor, such as a single graphics processing unit (GPU) for example.

公开(公告)号：US12198271B2

公开(公告)日：2025-01-14

申请号：US17955490

申请日：2022-09-28

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

Inventor： Sho Ikeda ,  Paritosh Vijay Kulkarni ,  Takahiro Harada

IPC: G06T17/10 ,  G06T15/06 ,  G06T17/00

Abstract: Devices and methods for multi-resolution geometric representation for ray tracing are described which include casting a ray in a space comprising objects represented by geometric shapes and approximating a volume of the geometric shapes using an accelerated hierarchy structure. The accelerated hierarchy structure comprises first nodes each representing a volume of one of the geometric shapes in the space and second nodes each representing an approximate volume of a group of the geometric shapes. When the ray is determined to intersect a bounding box of a second node representing one group of the geometric shapes, a selection is made between traversal and non-traversal of other second nodes based on a LOD for representing the volume of the one group of geometric shapes.

公开(公告)号：US12136165B2

公开(公告)日：2024-11-05

申请号：US17068342

申请日：2020-10-12

Applicant: Advanced Micro Devices, Inc.

Inventor： Takahiro Harada ,  Jerry McKee ,  Jason Yang

IPC: G06T15/80 ,  G06T15/40 ,  G06T15/50

Abstract: A method for enhanced forward rendering is disclosed which includes a depth pre-pass, light culling and a final shading. The depth pre-pass minimizes the cost of final shading by avoiding high pixel overdraw. The light culling stage calculates a list of light indices overlapping a pixel. The light indices are calculated on a per-tile basis, where the screen has been split into units of tiles. The final shading evaluates materials using information stored for each light. The forward rendering method may be executed on a processor, such as a single graphics processing unit (GPU) for example.