公开(公告)号：US09754407B2

公开(公告)日：2017-09-05

申请号：US14645327

申请日：2015-03-11

Applicant: NVIDIA Corporation

Inventor： Anjul Patney ,  Eric B. Enderton ,  Eric B. Lum ,  Marco Salvi ,  Christopher Ryan Wyman ,  Yubo Zhang ,  Yong He ,  G. Evan Hart, Jr. ,  Kayvon Fatahalian ,  Yury Uralsky ,  Henry Packard Moreton ,  Aaron Eliot Lefohn

IPC: G06T15/50 ,  G06T15/80 ,  G06T17/10 ,  G06T17/20

CPC classification number: G06T15/80 ,  G06T17/10 ,  G06T17/20 ,  G06T17/205 ,  G06T2200/04 ,  G06T2210/36

Abstract: A system, method, and computer program product are provided for shading using a dynamic object-space grid. An object defined by triangle primitives in a three-dimensional (3D) space that is specific to the object is received and an object-space shading grid is defined for a first triangle primitive of the triangle primitives based on coordinates of the first triangle primitive in the 3D space. A shader program is executed by a processing pipeline to compute a shaded value at a point on the object-space shading grid for the first triangle primitive.

公开(公告)号：US20160203635A1

公开(公告)日：2016-07-14

申请号：US14989585

申请日：2016-01-06

Applicant: NVIDIA Corporation

Inventor： Christopher Ryan Wyman ,  Aaron Eliot Lefohn ,  Anjul Patney

IPC: G06T15/60 ,  G06T15/80 ,  G06T1/20 ,  G06T15/50

CPC classification number: G06T15/60 ,  G06T15/503 ,  G06T15/506 ,  G06T15/80

Abstract: A method, computer readable medium, and system are disclosed for rendering shadows. A frustum projected from a grid cell corresponding to a light source in light-space is defined and a graphics primitive is determined to intersect the frustum. A light-space visibility buffer is accessed to obtain a set of pixel fragment footprints corresponding to the frustum and it is identified whether each pixel fragment footprint of the pixel fragment footprints is shadowed by the graphics primitive.

Abstract translation: 公开了一种用于渲染阴影的方法，计算机可读介质和系统。 定义从光空间中对应于光源的网格单元投影的平截头体，并且确定图形原语与平截头体相交。 访问光空间可见性缓冲器以获得对应于截头锥体的一组像素片段覆盖区，并且识别像素片段脚印的每个像素片段占用是否被图形原语遮蔽。

公开(公告)号：US20150179142A1

公开(公告)日：2015-06-25

申请号：US14137888

申请日：2013-12-20

Applicant: NVIDIA Corporation

Inventor： Jaakko T. Lehtinen ,  Samuli Matias Laine ,  Kayvon Fatahalian ,  Yong He ,  Anjul Patney

IPC: G09G5/10

CPC classification number: G06T15/005

Abstract: A system, method, and computer program product are provided for calculating shader program intermediate values. The method includes the steps of receiving a graphics primitive for processing according to a shader program including a first set of instructions and a second set of instructions, executing the first set of instructions by a processing pipeline to calculate multi-pixel intermediate values, executing the second set of instructions by the processing pipeline to calculate per-pixel values based on at least the multi-pixel intermediate values, and repeating the receiving and executing of the first and second sets of instructions for one or more additional graphics primitives.

Abstract translation: 提供了一种用于计算着色器程序中间值的系统，方法和计算机程序产品。 该方法包括以下步骤：接收根据包括第一组指令和第二组指令的着色器程序进行处理的图形基元，由处理流水线执行第一组指令以计算多像素中间值，执行 所述处理流水线的第二组指令基于至少所述多像素中间值来计算每像素值，以及重复所述第一和第二组指令的接收和执行对于一个或多个附加图形基元。