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公开(公告)号：US09947084B2
公开(公告)日：2018-04-17
申请号：US13790037
申请日：2013-03-08
Applicant: NVIDIA Corporation
Inventor： Eric B. Lum , John S. Montrym , Walter R. Steiner , Justin Cobb , Henry Packard Moreton
CPC classification number: G06T5/006 , G06T15/005
Abstract: A technique for multiresolution consistent rasterization in which a setup unit calculates universal edge equations for a universal resolution. A rasterizer evaluates coverage data for two different resolutions based on the edge equations. The rasterizer evaluates coverage data for different effective pixel sizes—a large pixel size and a small pixel size. Optionally, the rasterizer may determine a first set of coverage data by performing conservative rasterization to determine coverage data for large pixels. Optionally, the rasterizer may then determine a second set of coverage data by performing standard rasterization for small pixels. Optionally, for the second set of coverage data, the rasterizer may evaluate only the small pixels that are within large pixels in the first set of coverage data that evaluate as covered.
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公开(公告)号：US20140184601A1
公开(公告)日：2014-07-03
申请号：US13732286
申请日：2012-12-31
Applicant: NVIDIA CORPORATION
Inventor： Jonathan Dunaisky , Steven E. Molnar , Christian Amsinck , Rui Bastos , Eric B. Lum , Justin Cobb , Emmett Kilgariff
CPC classification number: G06T1/60 , G06T9/00 , G09G5/393 , G09G2360/122 , H04N19/428
Abstract: A system and method for decompressing compressed data (e.g., in a frame buffer) and optionally recompressing the data. The method includes determining a portion of an image to be accessed from a memory and sending a conditional read corresponding to the portion of the image. In response to the conditional read, an indicator operable to indicate that the portion of the image is uncompressed may be received. If the portion of the image is compressed, in response to the conditional read, compressed data corresponding to the portion of the image is received. In response to receiving the compressed data, the compressed data is uncompressed into uncompressed data. The uncompressed data may then be written to the memory corresponding to the portion of the image. The uncompressed data may then be in-place compressed for or during subsequent processing.
Abstract translation: 一种用于解压缩压缩数据（例如，在帧缓冲器中）并可选地重新压缩数据的系统和方法。 该方法包括从存储器确定要访问的图像的一部分，并发送对应于图像的该部分的条件读取。 响应于条件读取，可以接收可操作以指示图像的部分未被压缩的指示符。 如果图像的部分被压缩，则响应于条件读取，接收到对应于图像部分的压缩数据。 响应于接收到压缩数据，压缩数据被解压缩成未压缩的数据。 然后可以将未压缩的数据写入与图像的该部分对应的存储器。 然后可以对未压缩的数据进行就地压缩或在后续处理期间进行压缩。
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Patent Agency Ranking
公开(公告)号：US10037620B2
公开(公告)日：2018-07-31
申请号：US14726381
申请日：2015-05-29
Applicant: NVIDIA CORPORATION
Inventor： Eric B. Lum , Justin Cobb
CPC classification number: G06T15/005 , G06T11/40
Abstract: One embodiment of the present invention includes a method for rendering a geometry object in a computer-generated scene. A screen space associated with a display screen is divided into a set of regions. For each region; a first sampling factor in a horizontal dimension is computed that represents a horizontal sampling factor for pixels located in the region, a second sampling factor in a vertical dimension is computed that represents a vertical sampling factor for the pixels located in the region, a first offset in the horizontal dimension is computed that represents a horizontal position associated with the region, and a second offset in the vertical dimension is computed that represent a vertical position associated with the region. When the geometry object is determined to intersect more than one region, an instance of the geometry object is generated each region that the geometry object intersects.
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公开(公告)号：US09286647B2
公开(公告)日：2016-03-15
申请号：US13795693
申请日：2013-03-12
Applicant: NVIDIA Corporation
Inventor： Eric B. Lum , Justin Cobb , Rui M. Bastos , Christian Rouet
CPC classification number: G06T1/20 , G06T11/40 , G06T15/005
Abstract: A computer-implemented method for drawing graphical objects within a graphics processing pipeline is disclosed. The method includes determining that a bypass mode for a first primitive is a no-bypass mode. The method further includes rasterizing the first primitive to generate a first set of rasterization results. The method further includes generating a first set of colors for the first set of rasterization results via a pixel shader unit. The method further includes rasterizing a second primitive to generate a second set of rasterization results. The method further includes generating a second set of colors for the second set of rasterization results without the pixel shader unit performing any processing operations on the second set of rasterization results. The method further includes transmitting the first set of pixel colors and the second set of pixel colors to a raster operations (ROP) unit for further processing.
Abstract translation: 公开了一种用于在图形处理流水线内绘制图形对象的计算机实现的方法。 该方法包括确定第一原语的旁路模式是无旁路模式。 该方法还包括光栅化第一原语以产生第一组光栅化结果。 该方法还包括经由像素着色器单元为第一组光栅化结果生成第一组颜色。 该方法还包括光栅化第二原语以生成第二组光栅化结果。 该方法还包括为第二组光栅化结果生成第二组颜色，而不使像素着色器单元对第二组光栅化结果执行任何处理操作。 该方法还包括将第一组像素颜色和第二组像素颜色传输到光栅操作（ROP）单元以用于进一步处理。
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公开(公告)号：US10311628B2
公开(公告)日：2019-06-04
申请号：US16049740
申请日：2018-07-30
Applicant: NVIDIA Corporation
Inventor： Eric B. Lum , Justin Cobb
Abstract: One embodiment of the present invention includes a method for rendering a geometry object in a computer-generated scene. A screen space associated with a display screen is divided into a set of regions. For each region; a first sampling factor in a horizontal dimension is computed that represents a horizontal sampling factor for pixels located in the region, a second sampling factor in a vertical dimension is computed that represents a vertical sampling factor for the pixels located in the region, a first offset in the horizontal dimension is computed that represents a horizontal position associated with the region, and a second offset in the vertical dimension is computed that represent a vertical position associated with the region. When the geometry object is determined to intersect more than one region, an instance of the geometry object is generated each region that the geometry object intersects.
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公开(公告)号：US10043234B2
公开(公告)日：2018-08-07
申请号：US13732286
申请日：2012-12-31
Applicant: NVIDIA Corporation
Inventor： Jonathan Dunaisky , Steven E. Molnar , Christian Amsinck , Rui Bastos , Eric B. Lum , Justin Cobb , Emmett Kilgariff
IPC: G06T17/00 , G06T1/60 , G06T9/00 , G09G5/393 , H04N19/426
Abstract: A system and method for decompressing compressed data (e.g., in a frame buffer) and optionally recompressing the data. The method includes determining a portion of an image to be accessed from a memory and sending a conditional read corresponding to the portion of the image. In response to the conditional read, an indicator operable to indicate that the portion of the image is uncompressed may be received. If the portion of the image is compressed, in response to the conditional read, compressed data corresponding to the portion of the image is received. In response to receiving the compressed data, the compressed data is uncompressed into uncompressed data. The uncompressed data may then be written to the memory corresponding to the portion of the image. The uncompressed data may then be in-place compressed for or during subsequent processing.
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公开(公告)号：US09684998B2
公开(公告)日：2017-06-20
申请号：US13947745
申请日：2013-07-22
Applicant: NVIDIA CORPORATION
Inventor： Eric B. Lum , Justin Cobb , Barry N. Rodgers
CPC classification number: G06T17/05
Abstract: One embodiment includes determining a first z-range for a first portion of a coarse raster tile, where the first portion includes a plurality of pixels having a first set of pixel locations, retrieving from a memory a corresponding z-range related to a second set of pixel locations associated with the coarse raster tile, where the first set of pixel locations comprises a subset of the second set of pixel locations, and comparing the first z-range to the corresponding z-range to determine whether the plurality of pixels is occluded. If the plurality of pixels determined to be occluded, then the plurality of pixels is culled. If the plurality of pixels is determined to not be occluded, then the plurality of pixels is transmitted to a fine raster unit for further processing. The coarse raster tile comprises a plurality of portions, including the first portion, and those portions are processed serially.
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