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公开(公告)号：US11030792B1
公开(公告)日：2021-06-08
申请号：US16419080
申请日：2019-05-22
摘要： Disclosed herein are systems and methods for packing stream outputs of a geometry shader into an output buffer. In one aspect, an exemplary method comprises generating, using vertices of primitives received from one or more geometry shaders, a stream output data together with an index buffer, where each absent vertex is replaced with a primitive restart, rebuilding the index buffer to a list format; and unwrapping the index data of the rebuilt index buffer to a packed buffer.
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公开(公告)号：US11763514B1
公开(公告)日：2023-09-19
申请号：US17903543
申请日：2022-09-06
CPC分类号： G06T15/005 , G06T1/20 , G06T17/20
摘要： An example method of hardware-assisted graphics pipeline emulation comprises: computing, based on an input set of graphic primitives, a set of tessellation factors; computing, based on the input set of graphic primitives, a set of points specifying a plurality of patches; computing, based on the set of points, a tessellation count buffer; generating, based on the set of points and the tessellation count buffer, a tessellation offset buffer; performing, using the tessellation offset buffer, a tessellation setup stage; performing, by a graphics processing unit (GPU), a tessellation stage based on the set of tessellation factors, wherein the tessellation stage generates a plurality of output points corresponding to one or more patches of the plurality of patches; and computing, by a domain shader stage, a plurality of vertex positions defined by the plurality of output points.
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公开(公告)号：US11727526B1
公开(公告)日：2023-08-15
申请号：US17483030
申请日：2021-09-23
CPC分类号： G06T1/20 , G06F9/3802 , G06F9/48 , G06T15/005 , G06T17/10
摘要： Disclosed herein are systems and methods for detecting when geometry shaders output a constant amount of data and writing the data into an output stream buffer. In one aspect, an exemplary method comprises gathering information about a number of block executions associated with the received data, analyzing the gathered information to determine whether constant or variable amount of data is generated for at least one of: a stream output or a rasterization, and when the constant amount of data is generated for the stream output, writing the generated data directly into a stream output buffer, and when the constant amount of data is generated for the rasterization, writing the generated data into a rasterization buffer either directly or through a use of an intermediate index buffer.
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公开(公告)号：US11450056B1
公开(公告)日：2022-09-20
申请号：US17322051
申请日：2021-05-17
摘要： An example method of hardware-assisted graphics pipeline emulation comprises: computing, based on an input set graphic primitives, a set of tessellation factors; computing, based on the input set graphic primitives, a set of points specifying a plurality of patches; computing, based on the set of points, a tessellation count buffer; generating, based on the set of points and the tessellation count buffer, a tessellation offset buffer; performing, using the tessellation offset buffer, a tessellation setup stage; performing, by a graphics processing unit (GPU), a tessellation stage based on the set of tessellation factors, wherein the tessellation stage generates a plurality of output points corresponding to one or more patches of the plurality of patches; and computing, by a domain shader stage, a plurality of vertex positions defined by the plurality of output points.
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5.发明授权公开(公告)号：US11417059B1
公开(公告)日：2022-08-16
申请号：US17149094
申请日：2021-01-14
摘要： Disclosed herein are systems and methods for reading input data into a geometry shader by rebuilding an index buffer. In one aspect, an exemplary method comprises constructing T-vectors for one-element ranges of the index buffer by defining each T-vector as a 4-component vector, calculating T-vectors for ranges [0; i] for all vertices of the index buffer by prefix scanning, for each vertex and for each primitive featuring the vertex, determining if the primitive is complete, and for each complete primitive, calculating an offset in an output index buffer using a component of the T-vector used to indicate, for the vertex, a number of complete primitives inside the range and a component that indicates a number of vertices since a last primitive restart, and writing an index value in an output index buffer, and reading input data into the geometry shader in accordance with the written index values.
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公开(公告)号：US11189002B1
公开(公告)日：2021-11-30
申请号：US16520600
申请日：2019-07-24
摘要： Disclosed herein are systems and methods for detecting when geometry shaders output a constant amount of data and writing the data into an output stream buffer. In one aspect, an exemplary method comprises gathering information about a number of block executions associated with the received data, analyzing the gathered information to determine whether constant or variable amount of data is generated for at least one of: a stream output or a rasterization, and when the constant amount of data is generated for the stream output, writing the generated data directly into a stream output buffer, and when the constant amount of data is generated for the rasterization, writing the generated data into a rasterization buffer either directly or through a use of an intermediate index buffer.
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公开(公告)号：US11055896B1
公开(公告)日：2021-07-06
申请号：US16800656
申请日：2020-02-25
摘要： An example method of hardware-assisted graphics pipeline emulation comprises: computing, based on an input set graphic primitives, a set of tessellation factors; computing, based on the input set graphic primitives, a set of points specifying a plurality of patches; computing, based on the set of points, a tessellation count buffer; generating, based on the set of points and the tessellation count buffer, a tessellation offset buffer; performing, using the tessellation offset buffer, a tessellation setup stage; performing, by a graphics processing unit (GPU), a tessellation stage based on the set of tessellation factors, wherein the tessellation stage generates a plurality of output points corresponding to one or more patches of the plurality of patches; and computing, by a domain shader stage, a plurality of vertex positions defined by the plurality of output points.
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8.发明授权公开(公告)号：US11004263B1
公开(公告)日：2021-05-11
申请号：US16419113
申请日：2019-05-22
发明人： Alexey Ivanov , Evgeny Nikitenko
摘要： Disclosed herein are systems and methods for reading input data into a geometry shader by rebuilding an index buffer. In one aspect, an exemplary method comprises constructing T-vectors for one-element ranges of the index buffer by defining each T-vector as a 4-component vector, calculating T-vectors for ranges [0; i] for all vertices of the index buffer by prefix scanning, for each vertex and for each primitive featuring the vertex, determining if the primitive is complete, and for each complete primitive, calculating an offset in an output index buffer using a component of the T-vector used to indicate, for the vertex, a number of complete primitives inside the range and a component that indicates a number of vertices since a last primitive restart, and writing an index value in an output index buffer, and reading input data into the geometry shader in accordance with the written index values.
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