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公开(公告)号:US09111395B2
公开(公告)日:2015-08-18
申请号:US12550726
申请日:2009-08-31
申请人: Andrew T. Lauritzen , Aaron Lefohn , Marco Salvi
发明人: Andrew T. Lauritzen , Aaron Lefohn , Marco Salvi
IPC分类号: G06T15/60
CPC分类号: G06T15/60
摘要: Shadow map partitions may be automatically placed based on the location or concentration of sample data depth in eye space. An initial positioning for the partitions may be determined based on user specified budgets for number of partitions, computation time, or memory utilization, in some embodiments. The initial positioning may be refined using a clustering algorithm in some cases.
摘要翻译: 可以根据眼睛空间中样本数据深度的位置或浓度自动放置阴影图分割。 在一些实施例中,可以基于用户指定的分区数量,计算时间或存储器利用率来确定分区的初始定位。 在某些情况下,可以使用聚类算法来改进初始定位。
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公开(公告)号:US20120182300A1
公开(公告)日:2012-07-19
申请号:US13008437
申请日:2011-01-18
申请人: Marco Salvi , Aaron Lefohn , Andrew T. Lauritzen , Kiril Vidimce
发明人: Marco Salvi , Aaron Lefohn , Andrew T. Lauritzen , Kiril Vidimce
IPC分类号: G06T15/60
CPC分类号: G06T15/60 , G06T15/08 , G06T2215/12
摘要: A dynamic volumetric medium, such as hair, fog, or smoke, may be represented, for purposes of shadow mapping, by transmittance versus depth data for that medium. In one embodiment, the representation may take the form of a plot of transmittance versus depth, with nodes where the transmittance changes non-live linearly with respect of depth into the medium. The number of nodes in the representation may be reduced to reduce memory footprint and to enable the storage of the representation on the same chip doing the shadow mapping. In some embodiments, the number of nodes may be reduced, one node at a time, by removing the node whose underlying trapezoid has the least area of all the remaining nodes.
摘要翻译: 为了阴影映射的目的,可以通过该介质的透射率对深度数据来表示动态体积介质,例如毛发,雾或烟。 在一个实施例中,该表示可以采用透射率对深度的曲线图,其中透射率相对于介质深度线性变化的节点。 可以减少表示中的节点数量以减少存储器占用,并且能够在相同的芯片上进行阴影映射的存储。 在一些实施例中,通过去除其底层梯形具有所有剩余节点的最小面积的节点,可以一次减少节点的数量,一个节点。
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公开(公告)号:US20180285374A1
公开(公告)日:2018-10-04
申请号:US15477027
申请日:2017-04-01
申请人: Altug Koker , Prasoonkumar Surti , David Puffer , Subramaniam Maiyuran , Guei-Yuan Lueh , Abhishek R. Appu , Joydeep Ray , Balaji Vembu , Tomer Bar-On , Andrew T. Lauritzen , Hugues Labbe , John G. Gierach , Gabor Liktor
发明人: Altug Koker , Prasoonkumar Surti , David Puffer , Subramaniam Maiyuran , Guei-Yuan Lueh , Abhishek R. Appu , Joydeep Ray , Balaji Vembu , Tomer Bar-On , Andrew T. Lauritzen , Hugues Labbe , John G. Gierach , Gabor Liktor
摘要: In an example, an apparatus comprises a plurality of execution units, and a first memory communicatively couple to the plurality of execution units, wherein the first shared memory is shared by the plurality of execution units and a copy engine to copy context state data from at least a first of the plurality of execution units to the first shared memory. Other embodiments are also disclosed and claimed.
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公开(公告)号:US08797323B2
公开(公告)日:2014-08-05
申请号:US13008437
申请日:2011-01-18
申请人: Marco Salvi , Aaron Lefohn , Andrew T. Lauritzen , Kiril Vidimce
发明人: Marco Salvi , Aaron Lefohn , Andrew T. Lauritzen , Kiril Vidimce
IPC分类号: G06T15/50
CPC分类号: G06T15/60 , G06T15/08 , G06T2215/12
摘要: A dynamic volumetric medium, such as hair, fog, or smoke, may be represented, for purposes of shadow mapping, by transmittance versus depth data for that medium. In one embodiment, the representation may take the form of a plot of transmittance versus depth, with nodes where the transmittance changes non-live linearly with respect of depth into the medium. The number of nodes in the representation may be reduced to reduce memory footprint and to enable the storage of the representation on the same chip doing the shadow mapping. In some embodiments, the number of nodes may be reduced, one node at a time, by removing the node whose underlying trapezoid has the least area of all the remaining nodes.
摘要翻译: 为了阴影映射的目的,可以通过该介质的透射率对深度数据来表示动态体积介质,例如毛发,雾或烟。 在一个实施例中,该表示可以采用透射率对深度的曲线图,其中透射率相对于介质深度线性变化的节点。 可以减少表示中的节点数量以减少存储器占用,并且能够在相同的芯片上进行阴影映射的存储。 在一些实施例中,通过去除其底层梯形具有所有剩余节点的最小面积的节点,可以一次减少节点的数量,一个节点。
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公开(公告)号:US20110050693A1
公开(公告)日:2011-03-03
申请号:US12550726
申请日:2009-08-31
申请人: Andrew T. Lauritzen , Aaron Lefohn , Marco Salvi
发明人: Andrew T. Lauritzen , Aaron Lefohn , Marco Salvi
IPC分类号: G06T15/50
CPC分类号: G06T15/60
摘要: Shadow map partitions may be automatically placed based on the location or concentration of sample data depth in eye space. An initial positioning for the partitions may be determined based on user specified budgets for number of partitions, computation time, or memory utilization, in some embodiments. The initial positioning may be refined using a clustering algorithm in some cases.
摘要翻译: 可以根据眼睛空间中样本数据深度的位置或浓度自动放置阴影图分割。 在一些实施例中,可以基于用户指定的分区数量,计算时间或存储器利用率来确定分区的初始定位。 在某些情况下,可以使用聚类算法来改进初始定位。
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公开(公告)号:US10649956B2
公开(公告)日:2020-05-12
申请号:US15477027
申请日:2017-04-01
申请人: Altug Koker , Prasoonkumar Surti , David Puffer , Subramaniam Maiyuran , Guei-Yuan Lueh , Abhishek R. Appu , Joydeep Ray , Balaji Vembu , Tomer Bar-On , Andrew T. Lauritzen , Hugues Labbe , John G. Gierach , Gabor Liktor
发明人: Altug Koker , Prasoonkumar Surti , David Puffer , Subramaniam Maiyuran , Guei-Yuan Lueh , Abhishek R. Appu , Joydeep Ray , Balaji Vembu , Tomer Bar-On , Andrew T. Lauritzen , Hugues Labbe , John G. Gierach , Gabor Liktor
IPC分类号: G06F16/13 , G06F9/38 , G06F9/30 , G06F16/11 , G06F16/172 , G06F9/46 , G06F12/1036 , G06F12/1045 , G06F12/0831
摘要: In an example, an apparatus comprises a plurality of execution units, and a first memory communicatively couple to the plurality of execution units, wherein the first shared memory is shared by the plurality of execution units and a copy engine to copy context state data from at least a first of the plurality of execution units to the first shared memory. Other embodiments are also disclosed and claimed.
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