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Topic: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

A screen flickers or a noise occurs On an especially dark scene when  enable GPU-acceleration.
It is satisfactory if SVP shader is Fastest or Sharp.
There was no such problem in ver3.1.5.

My environment

MPC-BE-v1.4.3
EVR(custom)
LAV Video Decoder v0.61.1(Hardware Acceleration None)

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  • MAG79
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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

JP
Talk about color banding?

3 Reply by JP

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

I know it, but this phenomenon did not occur in ver3.1.5

  • MAG79
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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

JP
Oh! I found it. This bug looks noticeably on video http://www.youtube.com/watch?v=1Br9tnV9j_0 from 0:30 at dark parts. You was right: it is color flickering and posterization (banding) effect at dark parts of frame.

Thank you for bug report. We will fix it soon.

5 Reply by JP

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

thx! I expect a fix.

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

I seem to get no banding when disabling the new linear option. Is it caused by this out of interest.

Cheers.

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

It's just a rounding error, I'll post an update tomorrow

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

The update: http://www.svp-team.com/files/SVP_3.1.6_update.zip

Unpack to the Program files/SVP folder.

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Thanks very much. Great

  • MAG79
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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

In addition to get picture better you can use dithering in LAV and in madVR renderer wink

Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Can anyone advise me on how I can increase SVP's GPU usage? At the moment it only uses up to about 17% of my GPU, even when my CPU is being maxed out.

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Trilandian
What GPU do you have?

Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Radeon HD 7850

  • MAG79
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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Trilandian
Radeon HD 7850
It is powerfull GPU. SVP can't utilize all its power. SVP uses GPU to unload CPU, but a half of work must be implemented at CPU.

15 Reply by Trilandian (edited by Trilandian 17-04-2014 12:52:12)

Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

OK, gotcha. Just one more reason to upgrade my PC when I get the money tongue

And props for using "its" in the proper form. I very rarely see people use it correctly wink

16 Reply by JP

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

I can not English.
But, I have resolved all this update！
Thank you (´・ω・｀)b

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Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Trilandian
Sorry. English is not my native language roll
It is luck if I use it properly wink

Re: [FIXED] Screen flickers on dark scenes when GPU-acceleration enabled

Hey, it's not mine, either, but that doesn't mean we should screw up the grammar, and you're doing just fine smile