US 2019/0318527 A1 · SPLIT FRAME RENDERING

Abstract

Improvements in the graphics processing pipeline that allow multiple pipelines to cooperate to render a single frame are disclosed. Two approaches are provided. In a first approach, world-space pipelines for the different graphics processing pipelines process all work for draw calls received from a central processing unit (CPU). In a second approach, the world-space pipelines divide up the work. Work that is divided is synchronized and redistributed at various points in the world-space pipeline. In either approach, the triangles output by the world-space pipelines are distributed to the screen-space pipelines based on the portions of the render surface overlapped by the triangles. Triangles are rendered by screen-space pipelines associated with the render surface portions overlapped by those triangles.

Claims20

Dependent claims

A method for sharing graphics processing work among multiple accelerated processing devices (“APD”) of a set of APDs, the method comprising:

transmitting a set of draw calls to each APD of the set of APDs;
splitting the set of draw calls into a set of primitive groups;
for each primitive group of the set of primitive groups, designating an input assembler to receive that primitive group, wherein for each primitive group, the designated input assembler is the same for each APD;
at each APD, for a first set of primitive groups designated to be received by input assemblers of that APD, transmitting the first set of primitive groups to the designated input assemblers;
and
at each APD, for a second set of primitive groups designated to be received by input assemblers outside of that APD, discarding the second set of primitive groups.

3 more elements

Dependencies are inferred from the claim text.

Split frame rendering

Life of this patent

Split frame rendering

Life of this patent

Abstract

Claims20