User`s guide

Release 260 Graphics Drivers for Windows - Version 260.89 RN-W26089-02v01

Known Product Limitations

• UndernViewClonemode,whenfull‐screenvideomirrorisnotused.

• UndernViewSpanmode,whenfull‐screenvideomirrorisnotusedandthevideo

ispositionedtospanacrossbothmonitors.

 Explanation

Withapplicationsthatrenderusingthehardwareoverlay—suchasDirectX

applications—thedefaultdriverbehavioristoenablethehardwareoverlaywhen

nViewCloneorSpanmodeisenabled.

Becausethedriversupportsonlyonehardwareoverlay,thevideoappearsononlyonedisplay.

No Antialiasing of 3DMark03 Image Quality Screen Captures

 Problem

AfterenablingantialiasingfromtheNVIDIAPropertiespage,3DMark03screen

captures—obtainedusingtheapplication’sscreencapturefunction—mightnotbe

antialiased.

 Explanation

ThisisnotanNVIDIAbug,butratheraresultofdifferentmethodsusedtorender

antialiasedimages.

Dependingonacombinationoffactors,thedrivermaytakeadvantageoftheNVIDIA

hardware’sabilitytobypassthefrontbufferwhilerenderinganantialiasedimage.In

thiscase,thefrontbufferdoes

notcontainantialiaseddata,soifanapplicationtakes

datafromthefrontbuffer—asisthecasewith3DMark03’sImageQualityscreen

captures—thentheresultingimageisnotantialiased.

Toaccommodateapplicationsthatrequestuseofthefrontbuffer,theNVIDIA

softwarecanprovidetheantialiaseddatainabufferto

theapplication.Sincethis

negatestheadvantagesoftheNVIDIAhardwarecapability,thissupportisenabled

onlywhenantialiasingisenabledwithintheapplication,andnotfromtheNVIDIA

controlpanel.

Inallcaseswhenantialiasingisenabled,screenimagesaswellasscreencapturesobtained

usingthePrintScreenkey

arealwaysantialiased.