公开(公告)号：US20140146050A1

公开(公告)日：2014-05-29

申请号：US13864189

申请日：2013-04-16

Applicant: NVIDIA CORPORATION

Inventor： Matthias Raab ,  Carsten Alexander Wächter ,  Alexander Keller

IPC: G06T15/50

CPC classification number: G06T15/506 ,  G06T15/50

Abstract: A system, method, and computer program product are provided for computing values for pixels in an image plane. In use, a low discrepancy sequence associated with an image plane is identified. Additionally, a function with the set of pixels of the image plane as a domain is determined. Further, a value is computed for each pixel in the image plane, utilizing the low discrepancy sequence and the function with the set of pixels of the image plane as a domain.

Abstract translation: 提供了一种系统，方法和计算机程序产品，用于计算图像平面中像素的值。 在使用中，识别与图像平面相关联的低差异序列。 此外，确定具有作为域的图像平面的像素集合的函数。 此外，利用低差异序列和具有作为域的图像平面的像素集合的函数来计算图像平面中的每个像素的值。

公开(公告)号：US09947132B2

公开(公告)日：2018-04-17

申请号：US13841016

申请日：2013-03-15

Applicant: Nvidia Corporation

Inventor： Lutz Kettner ,  Hakan Andersson ,  Michael Beck ,  Robert Hoedicke ,  Jan Jordan ,  Andy Kopra ,  Steven Parker ,  Matthias Raab ,  Daniel Seibert ,  Rajko Yasui-Schoeffel

IPC: G06T5/00 ,  G06T15/50 ,  G06T15/04

CPC classification number: G06T15/506 ,  G06T15/04

Abstract: A material representation data structure and a method of representing a material for digital image synthesis. The data structure may be embodied in a graphics processing subsystem, including: (1) a memory configured to store a material representation data structure according to which a material is declaratively represented by a property indicative of an interaction between the material and light, and (2) a processor operable to gain access to the memory and employ the property in a rendering procedure defined independent of the material representation data structure and designed to effect the interaction.

公开(公告)号：US09367955B2

公开(公告)日：2016-06-14

申请号：US13864189

申请日：2013-04-16

Applicant: NVIDIA Corporation

Inventor： Matthias Raab ,  Carsten Alexander Wächter ,  Alexander Keller

IPC: G06T15/50

CPC classification number: G06T15/506 ,  G06T15/50

Abstract: A system, method, and computer program product are provided for computing values for pixels in an image plane. In use, a low discrepancy sequence associated with an image plane is identified. Additionally, a function with the set of pixels of the image plane as a domain is determined. Further, a value is computed for each pixel in the image plane, utilizing the low discrepancy sequence and the function with the set of pixels of the image plane as a domain.

Abstract translation: 提供了一种系统，方法和计算机程序产品，用于计算图像平面中像素的值。 在使用中，识别与图像平面相关联的低差异序列。 此外，确定具有作为域的图像平面的像素集合的函数。 此外，利用低差异序列和具有作为域的图像平面的像素集合的函数来计算图像平面中的每个像素的值。

公开(公告)号：US10008033B2

公开(公告)日：2018-06-26

申请号：US15860455

申请日：2018-01-02

Applicant: NVIDIA Corporation

Inventor： Daniel Johannes Seibert ,  Stefan Radig ,  Matthias Raab ,  Carsten Alexander Wächter ,  Lutz Kettner ,  Alexander Keller ,  Dirk Gerrit van Antwerpen

IPC: G06T15/50 ,  G06T15/06 ,  G06T15/55

CPC classification number: G06T15/506 ,  G06T15/06 ,  G06T15/55 ,  G06T2210/04

Abstract: A method, system, and computer program product for performing a lighting simulation are disclosed. The method includes the steps of receiving a three-dimensional (3D) model, receiving a set of probes, where each probe specifies a location within the 3D model and an orientation of the probe, and performing, via a processor, a lighting simulation based on the 3D model, the set of probes, and one or more light path expressions. The light path expressions are regular expressions that represent a series of events, each event representing an interaction of a ray at a location in the 3D model.

公开(公告)号：US09892548B2

公开(公告)日：2018-02-13

申请号：US14820491

申请日：2015-08-06

Applicant: NVIDIA Corporation

Inventor： Daniel Johannes Seibert ,  Stefan Radig ,  Matthias Raab ,  Carsten Alexander Waechter ,  Lutz Kettner ,  Alexander Keller ,  Dirk Gerrit van Antwerpen

IPC: G06T15/50

CPC classification number: G06T15/506 ,  G06T15/06 ,  G06T15/55 ,  G06T2210/04

Abstract: A method, system, and computer program product for performing a lighting simulation are disclosed. The method includes the steps of receiving a three-dimensional (3D) model, receiving a set of probes, where each probe specifies a location within the 3D model and an orientation of the probe, and performing, via a processor, a lighting simulation based on the 3D model, the set of probes, and one or more light path expressions. The light path expressions are regular expressions that represent a series of events, each event representing an interaction of a ray at a location in the 3D model.

公开(公告)号：US10565781B2

公开(公告)日：2020-02-18

申请号：US14875813

申请日：2015-10-06

Applicant: Nvidia Corporation

Inventor： Pascal Gautron ,  Dietger van Antwerpen ,  Carsten Waechter ,  Matthias Raab

IPC: G06T15/50 ,  G06T15/83 ,  G06T17/20

Abstract: A method of adjusting a shading normal vector for a computer graphics rendering program. Calculating a normalized shading normal vector pointing outwards from an origin point on a tessellated surface modeling a target surface to be rendered. Calculating a normalized outgoing reflection vector projecting from the origin point for an incoming view vector directed towards the origin point and reflecting relative to the normalized shading normal vector. Calculating a correction vector such that when the correction vector is added to the normalized outgoing reflection vector a resulting vector sum is yielded that is equal to a maximum reflection vector, wherein the maximum reflection vector is on or above the tessellated surface. Calculating a normalized maximum reflection vector by normalizing a vector sum of the correction vector plus the maximum reflection vector. Calculating a normalized adjusted shading normal vector by normalizing a vector difference of the normalized maximum reflection vector minus the incoming view vector.

公开(公告)号：US20180130252A1

公开(公告)日：2018-05-10

申请号：US15860455

申请日：2018-01-02

Applicant: NVIDIA Corporation

Inventor： Daniel Johannes Seibert ,  Stefan Radig ,  Matthias Raab ,  Carsten Alexander Wächter ,  Lutz Kettner ,  Alexander Keller ,  Dirk Gerrit van Antwerpen

IPC: G06T15/50

CPC classification number: G06T15/506 ,  G06T15/06 ,  G06T15/55 ,  G06T2210/04

Abstract: A method, system, and computer program product for performing a lighting simulation are disclosed. The method includes the steps of receiving a three-dimensional (3D) model, receiving a set of probes, where each probe specifies a location within the 3D model and an orientation of the probe, and performing, via a processor, a lighting simulation based on the 3D model, the set of probes, and one or more light path expressions. The light path expressions are regular expressions that represent a series of events, each event representing an interaction of a ray at a location in the 3D model.

公开(公告)号：US20170053433A1

公开(公告)日：2017-02-23

申请号：US14875813

申请日：2015-10-06

Applicant: Nvidia Corporation

Inventor： Pascal Gautron ,  Dietger van Antwerpen ,  Carsten Waechter ,  Matthias Raab

IPC: G06T15/83 ,  G06T17/20

Abstract: A method of adjusting a shading normal vector for a computer graphics rendering program. Calculating a normalized shading normal vector pointing outwards from an origin point on a tessellated surface modeling a target surface to be rendered. Calculating a normalized outgoing reflection vector projecting from the origin point for an incoming view vector directed towards the origin point and reflecting relative to the normalized shading normal vector. Calculating a correction vector such that when the correction vector is added to the normalized outgoing reflection vector a resulting vector sum is yielded that is equal to a maximum reflection vector, wherein the maximum reflection vector is on or above the tessellated surface. Calculating a normalized maximum reflection vector by normalizing a vector sum of the correction vector plus the maximum reflection vector. Calculating a normalized adjusted shading normal vector by normalizing a vector difference of the normalized maximum reflection vector minus the incoming view vector.

Abstract translation: 一种调整计算机图形渲染程序的阴影法线向量的方法。 计算从纹理表面上的原点指向外部的归一化阴影法线向量，以建模要渲染的目标表面。 计算从原点投射的归一化出射反射矢量，用于指向原点的入射视图矢量，并反射相对于归一化阴影法线矢量。 计算校正矢量，使得当校正矢量被添加到归一化出射反射矢量时，得到的矢量和等于最大反射矢量，其中最大反射矢量在镶嵌表面上或上方。 通过归一化校正矢量加上最大反射矢量的矢量和来计算归一化的最大反射矢量。 通过归一化归一化最大反射矢量减去入视图矢量的向量差来计算归一化的调整阴影法线向量。

公开(公告)号：US20160042559A1

公开(公告)日：2016-02-11

申请号：US14820491

申请日：2015-08-06

Applicant: NVIDIA Corporation

Inventor： Daniel Johannes Seibert ,  Stefan Radig ,  Matthias Raab ,  Carsten Alexander Waechter ,  Lutz Kettner ,  Alexander Keller ,  Dirk Gerrit van Antwerpen

IPC: G06T15/50 ,  G06T15/06 ,  G06T17/00

CPC classification number: G06T15/506 ,  G06T15/06 ,  G06T15/55 ,  G06T2210/04

Abstract: A method, system, and computer program product for performing a lighting simulation are disclosed. The method includes the steps of receiving a three-dimensional (3D) model, receiving a set of probes, where each probe specifies a location within the 3D model and an orientation of the probe, and performing, via a processor, a lighting simulation based on the 3D model, the set of probes, and one or more light path expressions. The light path expressions are regular expressions that represent a series of events, each event representing an interaction of a ray at a location in the 3D model.

Abstract translation: 公开了一种用于执行照明模拟的方法，系统和计算机程序产品。 该方法包括以下步骤：接收三维（3D）模型，接收一组探针，其中每个探针指定3D模型内的位置和探针的取向，以及经由处理器执行基于照明模拟 在3D模型上，探针组和一个或多个光路表达式。 光路表达式是表示一系列事件的正则表达式，每个事件表示3D模型中某个位置的光线相互作用。