<p>Embodiments of a filtering method and apparatus for anti-aliasing as described herein take advantage of improved existing hardware by using as input the data stored in the multisampling anti-aliasing (MSAA) buffers after rendering. The standard hardware box-filter is then replaced with a more intelligent resolve implemented using shader programs Embodiments find scene edges using existing samples generated by Graphics Processing Unit (GPU) hardware. Using samples from a footprint larger than a single pixel, a gradient is calculated matching the direction of an edge. A non-linear filter over contributing samples in the direction of the gradient gives the final result.</p>
申请公布号
WO2009124248(A1)
申请公布日期
2009.10.08
申请号
WO2009US39458
申请日期
2009.04.03
申请人
ADVANCED MICRO DEVICES, INC.;IOURCHA, KONSTANTINE;YANG, JASON;POMIANOWSKI, ANDREW
发明人
IOURCHA, KONSTANTINE;YANG, JASON;POMIANOWSKI, ANDREW