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Author Topic: Blur post-effect and cpu  (Read 2647 times)

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Jove

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Blur post-effect and cpu
« on: May 13, 2011, 09:03:16 pm »
Just a quickie. I've dropped in the tutorial blur effect to soften up my overall output image, but is it normal behaviour for it to increase CPU usage by quite a lot?

Running in Release, it was usually < 5% usage, with the post-effect it's about 20%.

I'm on SFML 1.6.

Oh and my usual CPU 'spike' in the project is not added on top of that 20%.

Mark
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Laurent

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Blur post-effect and cpu
« Reply #1 on: May 13, 2011, 09:23:32 pm »
What's your graphics card and OS? Maybe you have a software implementation of shaders.
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Jove

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Blur post-effect and cpu
« Reply #2 on: May 13, 2011, 11:26:22 pm »
My graphics card is a Nvidia 8800 GTX running under Windows 7 64 bit. The 8800 is running very recent drivers.
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