Slow Rendering on PC

This topic contains 3 replies, has 2 voices, and was last updated by  Gordon 7 years, 11 months ago.

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  • #29990

    drgoldie
    Member

    I’ve updated the SDK after quite a while and was pleasantly surprised by the GUI tool window. Very nice!

    However, I experience very slow rendering now. With the old SDK my (very simple) test app was running at >2000fps on my PC. With the new SDK it runs at frame rates between 3 and 60fps, depending on which hardware profile I choose (only MBX lite works at 60fps, everything else is much slower).

    The CPU usage is very low, so I don’t understand why the frame rate is that low.

    Thanks,
    Daniel

    #33563

    Gordon
    Moderator

    This is something we’ve seen inconsistently here, but haven’t nailed down the cause. As you’ve possibly gathered, VFrame runs over your native graphics card; what card are you using? Which drivers? Are you running in a window (640×480 forinstance)? Are you using multiple monitors?

    #33564

    drgoldie
    Member

    My computer is a notebook with a Quadro FX 3700M with the latest official drivers from Dell (mid of this year) on Windows 7.

    The application runs in a 640×480 window on a single screen setup.

    #33565

    Gordon
    Moderator

    I have possibly the same issue with certain demos on my work machine. Do you have this problem in other demos – how about the ones in the SDK?

    I find if I restart then it goes away for a period. It is quite annoying, but this is the only work-a-round I have at the moment. I’m running an nvidia card atm too and this behaviour has not been shown on other vendors’ cards. I will post further if I work out more.

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