Nvidia blur in Windows XP

Esturk · Post by **Esturk** » Sat Oct 20, 2007 3:56 am

One thing that always bugged me about nvidia cards, was the blur in any mode other than 640x480 DR in Zsnes under Windows XP.

I've recently installed Vista Ultimate x64 on my computer. To my surprise, there's no more blur! What's different in Vista? The nvidia blur seems to not occur in Vista.

Deathlike2 · Post by **Deathlike2** » Sat Oct 20, 2007 3:59 am

I believe that has to do with ZSNES using Video Memory for acceleration by default. Filtering is auto-enabled under OSes prior to Vista. It isn't a coincidence that this is occuring.

franpa · Post by **franpa** » Sat Oct 20, 2007 6:00 am

Deathlike2 wrote:I believe that has to do with ZSNES using Video Memory for acceleration by default. Filtering is auto-enabled under OSes prior to Vista. It isn't a coincidence that this is occurring.

how to change this default setting under winXP home?

Deathlike2 · Post by **Deathlike2** » Sat Oct 20, 2007 6:04 am

franpa wrote:
Deathlike2 wrote:I believe that has to do with ZSNES using Video Memory for acceleration by default. Filtering is auto-enabled under OSes prior to Vista. It isn't a coincidence that this is occurring.
how to change this default setting under winXP home?

Turn off DDraw acceleration via dxdiag.

franpa · Post by **franpa** » Sat Oct 20, 2007 9:20 am

DDRAW still functions with that off tho right?

creaothceann · Post by **creaothceann** » Sat Oct 20, 2007 2:46 pm

Yes, but it won't be hardware-accelerated.

franpa · Post by **franpa** » Sat Oct 20, 2007 4:14 pm

oooh, good way to test if my video card is to blame for certain issues maybe?

Esturk · Post by **Esturk** » Sun Oct 21, 2007 10:34 pm

So if Zsnes were to use D3D, this blur wouldn't occur right?

darkfalz · Post by **darkfalz** » Tue Oct 23, 2007 4:38 am

It's a simple change in the source to use system memory rather than video memory, shame that it was never made an actual option in the software.

Deathlike2 · Post by **Deathlike2** » Tue Oct 23, 2007 7:13 am

I looked at add such a feature earlier.. but ZSNES performed like crap that I simply didn't bother.