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    GPU mixed primitive topology type processing
    21.
    发明授权
    GPU mixed primitive topology type processing 有权

    公开(公告)号：US11257182B2

    公开(公告)日：2022-02-22

    申请号：US16943984

    申请日：2020-07-30

    Applicant: Intel Corporation

    Inventor： John Gierach ,  Abhishek Venkatesh ,  Travis Schluessler ,  Devan Burke ,  Tomer Bar-On ,  Michael Apodaca

    IPC: G06T1/20 ,  G06T17/10

    Abstract: Embodiments are generally directed to GPU mixed primitive topology type processing. An embodiment of an apparatus includes one or more processor cores; and a memory to store data for graphics processing, wherein the one or more processing cores are to generate in the memory a vertex buffer to store vertex data for a mesh to be rendered and an index buffer to index the vertex data stored in the vertex buffer, the index buffer being structured to include index data for multiple primitive topology types. The one or more processor cores are to process the index data for the plurality of primitive topology types from the index buffer and fetch vertex data from the vertex buffer; and are to set up each primitive topology type of the plurality of primitive topology types for processing in a single draw operation.

    USE OF INNER COVERAGE INFORMATION BY A CONSERVATIVE RASTERIZATION PIPELINE TO ENABLE EARLYZ FOR CONSERVATIVE RASTERIZATION
    24.
    发明申请
    USE OF INNER COVERAGE INFORMATION BY A CONSERVATIVE RASTERIZATION PIPELINE TO ENABLE EARLYZ FOR CONSERVATIVE RASTERIZATION 有权

    公开(公告)号：US20210097639A1

    公开(公告)日：2021-04-01

    申请号：US16583478

    申请日：2019-09-26

    Applicant: Intel Corporation

    Inventor： Abhishek Venkatesh ,  Selvakumar Panneer

    IPC: G06T1/20 ,  G06T15/00 ,  G06T15/80 ,  G06T17/10

    Abstract: Embodiments described herein are generally directed to conservative rasterization pipeline configurations that allow EarlyZ to be enabled for conservative rasterization. An embodiment of a method includes receiving, by a conservative rasterizer, a primitive; creating, by the conservative rasterizer, a pixel location stream based on the primitive and inner coverage data for each pixel within the pixel location stream indicative of whether the corresponding pixel is fully covered or partially covered by the primitive; for each block of pixels of the pixel location stream, launching, by the conservative rasterizer, a thread of a pixel shader, including causing EarlyZ to be performed or not for fully covered pixels and partially covered pixels, respectively; and generating, by the pixel shader, a stream of pixel updates by conditionally processing the pixel location stream to incorporate pixel shading characteristics, including for partially covered pixels computing a depth value and causing LateZ to be performed.

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