> Would be interesting to see results without antialiasing (also of QT) > compared.
I have added results without antialiasing . Also WinXP NVidia driver was updated to latest version. Rather strange result for Java2D in Ubunutu with opengl=false. > However I have an explanation why Java2D is so slow with antialasing enabled: > Java2D guarantees consistent antialiasing quality, therefor it uses a mixed > software/hw approach. The antialiased geometry is generated by the CPU > while the blending itself is done on hw. QT relies on the OpenGL driver's > capabilities, but drivers often differ a lot when it comes to quality - > however that is slowly changing. Thanks for this explanation. There is no pixel-to-pixel correspondence when Qt OpenGL pipeline is enabled (I have taken two screenshots, there is only a subtle difference). With good enough drivers (like NVidia on Windows for example) usage of hardware acceleration improves performance about 4.4 time for my configuration (7600GS AGP is rather old). So having the option for usage of OpenGL driver's capabilities is a very good thing. And why there is no such option for Java2D? [Message sent by forum member 'kamre' (kamre)] http://forums.java.net/jive/thread.jspa?messageID=319187 =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA2D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
