Apparatus and method for acceleration data structure refit

    公开(公告)号:US11501484B2

    公开(公告)日:2022-11-15

    申请号:US17032964

    申请日:2020-09-25

    Abstract: Apparatus and method for acceleration data structure refit. For example, one embodiment of an apparatus comprises: a ray generator to generate a plurality of rays in a first graphics scene; a hierarchical acceleration data structure generator to construct an acceleration data structure comprising a plurality of hierarchically arranged nodes including inner nodes and leaf nodes stored in a memory in a depth-first search (DFS) order; traversal hardware logic to traverse one or more of the rays through the acceleration data structure; intersection hardware logic to determine intersections between the one or more rays and one or more primitives within the hierarchical acceleration data structure; a node refit unit comprising circuitry and/or logic to read consecutively through at least the inner nodes in the memory in reverse DFS order to perform a bottom-up refit operation on the hierarchical acceleration data structure.

    Asynchronous execution mechanism
    123.
    发明授权

    公开(公告)号:US11494867B2

    公开(公告)日:2022-11-08

    申请号:US17115555

    申请日:2020-12-08

    Abstract: An apparatus to facilitate asynchronous execution at a processing unit. The apparatus includes one or more processors to detect independent task passes that may be executed out of order in a pipeline of the processing unit, schedule a first set of processing tasks to be executed at a first set of processing elements at the processing unit and schedule a second set of tasks to be executed at a second set of processing elements, wherein execution of the first set of tasks at the first set of processing elements is to be performed simultaneous and in parallel to execution of the second set of tasks at the second set of processing elements.

    Method and apparatus for efficient loop processing in a graphics hardware front end

    公开(公告)号:US11232531B2

    公开(公告)日:2022-01-25

    申请号:US15690201

    申请日:2017-08-29

    Abstract: Various embodiments enable loop processing in a command processing block of the graphics hardware. Such hardware may include a processor including a command buffer, and a graphics command parser. The graphics command parser to load graphics commands from the command buffer, parse a first graphics command, store a loop count value associated with the first graphics command, parse a second graphics command and store a loop wrap address based on the second graphics command. The graphics command parser may execute a command sequence identified by the second graphics command, parse a third graphics command, the third graphics command identifying an end of the command sequence, set a new loop count value, and iteratively execute the command sequence using the loop wrap address based on the new loop count value.

    Early termination in bottom-up acceleration data structure refit

    公开(公告)号:US11158111B2

    公开(公告)日:2021-10-26

    申请号:US16915599

    申请日:2020-06-29

    Abstract: Apparatus and method for bottom-up BVH refit. For example, one embodiment of an apparatus comprises: a hierarchical acceleration data structure generator to construct an acceleration data structure comprising a plurality of hierarchically arranged nodes; traversal hardware logic to traverse one or more rays through the acceleration data structure; intersection hardware logic to determine intersections between the one or more rays and one or more primitives within the hierarchical acceleration data structure; a node unit comprising circuitry and/or logic to perform refit operations on nodes of the hierarchical acceleration data structure, the refit operations to adjust spatial dimensions of one or more of the nodes; and an early termination evaluator to determine whether to proceed with refit operations or to terminate refit operations for a current node based on refit data associated with one or more child nodes of the current node.

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