Nvidia Corporation

Ankan Banerjee

Thomas A Petersen

Jonah Matthew Alben

Eric Brian Lum

Yury Y Uralsky

Rouslan Lyubomirov Dimitrov

Sau Yan Keith Li

Lars Nordskog

Prakshep Mehta

Shishir Goyal

Gregory Massal

Oleg Kuznetsov

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.

Systems and methods for frame time smoothing based on modified animation advancement and use of post render queues

A raster unit is configured to generate different sample patterns for adjacent pixels within a given frame. In addition, the raster unit may adjust the sample patterns between frames. The raster unit includes an index unit that selects a sample pattern table for use with a current frame. For a given pixel, the index unit extracts a sample pattern from the selected sample pattern table. The extracted sample pattern is used to generate coverage information for the pixel. The coverage information for all pixels is then used to generate an image. The resultant image may then be filtered to reduce or remove artifacts induced by the changing of sample locations.

Enhanced anti-aliasing by varying sample patterns spatially and/or temporally

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Pune, India

Ankan Banerjee