公开(公告)号：US20210174475A1

公开(公告)日：2021-06-10

申请号：US17178078

申请日：2021-02-17

Applicant: NVIDIA Corporation

Inventor： Thomas Albert Petersen ,  Ankan Banerjee ,  Shishir Goyal ,  Sau Yan Keith Li ,  Lars Nordskog ,  Rouslan Dimitrov

IPC: G06T5/00 ,  G06T13/20 ,  G06T15/00 ,  G06T13/00 ,  G09G5/00 ,  G06F9/38 ,  G06T1/20

Abstract: Embodiments of the present invention provide end-to-end frame time synchronization designed to improve smoothness for displaying images of 3D applications, such as PC gaming applications. Traditionally, an application that renders 3D graphics functions based on the assumption that the average render time will be used as the animation time for a given frame. When this condition is not met, and the render time for a frame does not match the average render time of prior frames, the frames are not captured or displayed at a consistent rate. This invention enables feedback to be provided to the rendering application for adjusting the animation times used to produce new frames, and a post-render queue is used to store completed frames for mitigating stutter and hitches. Flip control is used to sync the display of a rendered frame with the animation time used to generate the frame, thereby producing a smooth, consistent image.

公开(公告)号：US10957020B2

公开(公告)日：2021-03-23

申请号：US16208390

申请日：2018-12-03

Applicant: NVIDIA CORPORATION

Inventor： Thomas Albert Petersen ,  Ankan Banerjee ,  Shishir Goyal ,  Sau Yan Keith Li ,  Lars Nordskog ,  Rouslan Dimitrov

IPC: G06T5/00 ,  G06T15/00 ,  G06F9/38 ,  G06T1/20 ,  G06T13/20 ,  G09G5/00 ,  G06T13/00

Abstract: Embodiments of the present invention provide end-to-end frame time synchronization designed to improve smoothness for displaying images of 3D applications, such as PC gaming applications. Traditionally, an application that renders 3D graphics functions based on the assumption that the average render time will be used as the animation time for a given frame. When this condition is not met, and the render time for a frame does not match the average render time of prior frames, the frames are not captured or displayed at a consistent rate. This invention enables feedback to be provided to the rendering application for adjusting the animation times used to produce new frames, and a post-render queue is used to store completed frames for mitigating stutter and hitches. Flip control is used to sync the display of a rendered frame with the animation time used to generate the frame, thereby producing a smooth, consistent image.

公开(公告)号：US20180322683A1

公开(公告)日：2018-11-08

申请号：US15652116

申请日：2017-07-17

Applicant: NVIDIA CORPORATION

Inventor： Rouslan Dimitrov ,  Yury Uralsky ,  Lars Nordskog ,  Dmitry Zhdan

IPC: G06T15/00 ,  G06F3/14 ,  G09G5/395

CPC classification number: G06T15/005 ,  G06F3/1431 ,  G09G5/395

Abstract: Techniques for rendering images on multiple tilted displays concurrently to mitigate perspective distortion are disclosed herein. According to one described approach, viewports are assigned to a center monitor and two peripheral monitors. Scene data for the viewports is calculated, and geometric primitives are generated for the viewports based on the scene data. Image transformation is performed based on a modified perspective value to modify geometry of the geometric primitives based on tilt angles of the displays, and the geometric primitives are rasterized using the modified geometry.