SFML community forums

Help => Graphics => Topic started by: Jove on May 13, 2011, 09:03:16 pm

Title: Blur post-effect and cpu
Post by: Jove 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

Title: Blur post-effect and cpu
Post by: Laurent on May 13, 2011, 09:23:32 pm

What's your graphics card and OS? Maybe you have a software implementation of shaders.

Title: Blur post-effect and cpu
Post by: Jove 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.