NVIDIA Corporation 205Appendix DNVIDIA ForceWare Graphics Display Driver — Feature History• enabling GL_POLYGON_SMOOTH no longer forces software rendering, resulting inmuch better performance at some cost in visual qualityDirect3DRelease 5 contains the following Direct3D changes:• accelerated full‐scene anti‐aliasing is enabled (GeForce, Quadro, GeForce2)• limited three‐stage setup is now possible• D3DVTXPCAPS_MATERIALSOURCE7 capability bit is now disabled (leaving the driverwith DirectX 6 material source capabilities)The following Registry keys are useful for applications that do not blit correctly:• FLUSHAFTERBLITENABLE is a new Registry key that controls the wait‐after‐blitcondition when the DDBLT_WAIT flag is set.(Default is DISABLED—do not wait.)Note: This Registry key was formerly named WAITAFTERBLITENABLE.• FORCEBLITWAITFLAGENABLE is a new Registry key that forces the DDBLT_WAIT flag tobe set for all blits, which prevents applications that do not check the return valuefrom unexpectedly losing blits.(Default is DISABLED.)• LIMITMAXQUEUEDFBBLITSENABLE is a new Registry key that limits the maximumnumber of queued blits to the front buffer to a value set by the PRERENDERLIMITRegistry key, which is 3 by default.(Default is DISABLED.)Control PanelNVIDIA now provides Control Panel tabs for Windows NT 4.0 and Windows 2000.
