Updating depth related graphics data

    公开(公告)号:US10008029B2

    公开(公告)日:2018-06-26

    申请号:US13907711

    申请日:2013-05-31

    CPC classification number: G06T15/405

    Abstract: Updating depth related graphics data is described. Geometric primitives are processed. Pixels are generated from the primitives based on the processing, each of which has at least one corresponding depth value. Culling is performed on a first group of the pixels, based on a representation of the at least one depth related value corresponding to each. Pixels may be discarded based on the culling and upon which a second group of pixels remain. A depth related raster operations function is performed, in which data is transacted with a depth buffer. The culling function is updated in relation to the transacting. The updating is performed on the basis of a granularity, which characterizes the culling function.

    Low-power processing in depth read-only operating regimes

    公开(公告)号:US09916680B2

    公开(公告)日:2018-03-13

    申请号:US13651329

    申请日:2012-10-12

    CPC classification number: G06T15/405 G06T15/30 G06T15/40 G06T2200/28

    Abstract: Techniques are disclosed for suppressing access to a depth processing unit associated with a graphics processing pipeline. The method includes receiving a graphics primitive from a first pipeline stage associated with the graphics processing pipeline. The method further includes determining that the graphics primitive is visible over one or more graphics primitives previously rendered to a frame buffer, and determining that the depth buffer is in a read-only mode. The method further includes suppressing an operation to transmit the graphics primitive to the depth processing unit. One advantage of the disclosed technique is that power consumption is reduced within the GPU by avoiding unnecessary accesses to the depth processing unit.

    Pixel shader bypass for low power graphics rendering
    4.
    发明授权
    Pixel shader bypass for low power graphics rendering 有权
    像素着色器旁路用于低功耗图形渲染

    公开(公告)号:US09286647B2

    公开(公告)日:2016-03-15

    申请号:US13795693

    申请日:2013-03-12

    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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