公开(公告)号：US20210201559A1

公开(公告)日：2021-07-01

申请号：US16728912

申请日：2019-12-27

Applicant: Intel Corporation

Inventor： HOLGER GRUEN

IPC: G06T15/06 ,  G06T15/00 ,  G06T17/10 ,  G06T9/00 ,  G06T3/40 ,  G06T1/20

Abstract: Apparatus and method for encoding sub-primitives to improve ray tracing efficiency. For example, one embodiment of an apparatus comprises: a ray generator to generate a plurality of rays in a ray tracing graphics pipeline; a sub-primitive generator to subdivide each primitive of a plurality of primitives into a plurality of sub-primitives; a sub-primitive encoder to identify a first subset of the plurality of sub-primitives as being fully transparent and to identify a second subset of the plurality of sub-primitives as being fully opaque; and wherein the first subset of the plurality of primitives identified as being fully transparent are culled prior to further processing of each respective primitive.

公开(公告)号：US20220012934A1

公开(公告)日：2022-01-13

申请号：US17349602

申请日：2021-06-16

Applicant: Intel Corporation

Inventor： HOLGER GRUEN ,  KARTHIK VAIDYANATHAN

IPC: G06T15/06 ,  G06T15/00

Abstract: Apparatus and method for more precise level-of-details transitions. For example one embodiment includes a graphics processor comprising: ray traversal hardware logic to traverse a ray through an acceleration structure to determine intersections between the ray and one or more object instances; and a level of detail selector to: set an instance comparison mask associated with an object instance to a first level of detail (LOD), the instance comparison mask comprising an N-bit value and one or more bits to indicate a type of comparison operation, compare a value from a ray mask with the N-bit value in accordance with the type of comparison operation to generate a comparison result, and determine whether to use the first LOD or a second LOD to render one or more pixels in accordance with the comparison result.