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Slow RAM preview with Eizo monitor.

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Stef PreinSlow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 3:05:39 pm

Hello,

Since I'm using an Eizo ColorEdge CG245W with my 2008 Mac Pro (8 core @ 3.0Ghz and 12GB RAM) RAM previews won't play at the actual frame rate.

I used the monitor also on my laptop to test the setup. And I have the same problem here...

Is it maybe the lack of RAM? Should I get more, in order to get smoother RAM previews?

Thanks!

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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Todd KoprivaRe: Slow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 3:15:45 pm

If you're pushing a lot of pixels to an external monitor, the bottleneck can be the connection between the computer and the monitor. This is not a matter of RAM. How is your monitor connected? What are the pixel dimensions and frame rate of what you're trying to preview?

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Stef PreinRe: Slow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 3:25:54 pm

I didn't think of that...

The monitor is connect through mini display port. The comp is 1920x1080 pixels at 30fps.

Rendering a RAM preview at a lower quality, eg half or third, doesn't seem to help much.

Also I'm using an ATI Radeon HD 5770 graphics card and AE CS6 (with latest updates).

Thanks!

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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Todd KoprivaRe: Slow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 3:50:53 pm

> Rendering a RAM preview at a lower quality, eg half or third, doesn't seem to help much.


That would have nothing to do with it if the problem is pushing pixels to the screen. Even if After Effects renders a much coarser image, a 1920x1080 frame still has the same number of pixels to be pushed to the monitor.

---------------------------------------------------------------------------------------------------------
Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
---------------------------------------------------------------------------------------------------------


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Stef PreinRe: Slow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 3:54:04 pm

Do you know what the problem might be, by any chance? Updating drivers?

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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Stef PreinRe: Slow RAM preview with Eizo monitor.
by on Mar 25, 2014 at 4:46:50 pm

After I connected a different monitor to my Mac, the problem was gone... I reconnected the Eizo monitor using DVI instead of mini Displayport. The RAM previews are a lot better now. But still not at full frame rate...

Stef Prein
director / motion designer at StudioFets.
Utrecht, The Netherlands
http://www.studiofets.com


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