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<p style="margin: 0 0 1em 0; color: black;">I was afraid that might be the
case... external box should be ok, though, yeah?</p>
<p style="margin: 0 0 1em 0; color: black;">Steven R Hood<br>
310.756.3555<br>
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<p
style="color: black; font-size: 10pt; font-family: Arial, sans-serif; margin: 10pt 0;">On
October 9, 2015 5:46:55 PM Andy Lang via Stagecraft
<stagecraft@theatrical.net> wrote:</p>
<blockquote type="cite" class="gmail_quote"
style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;">
<div dir="ltr"><div class="markdown-here-wrapper" style=""><p
style="margin:1.2em 0px!important">On Fri, Oct 9, 2015 at 6:48 PM Steven
Hood via Stagecraft <a
href="http://mailto:stagecraft@theatrical.net">stagecraft@theatrical.net</a>
wrote:</p>
<p style="margin:1.2em 0px!important"></p><div
class="markdown-here-exclude"><p></p><blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Playing
with qlab on our macbook (so far, just the free version). I'm<br>
looking to get the paid video version at some point soon-ish. For those of<br>
you using it, are you using the hdmi out of the computer, or are you using<br>
an external video card like Blackmagic or the like? I'm
brainstorming.<br></blockquote><p></p></div><p
style="margin:1.2em 0px!important"></p>
<p style="margin:1.2em 0px!important">Generally speaking, don’t use a
Blackmagic output unless you absolutely have to. Even if you need SDI
output, you’ll get better performance using HDMI out of the computer
directly, and then using an outboard converter to convert it to SDI. </p>
<p style="margin:1.2em 0px!important">The reason for this is that the
Blackmagic devices aren’t actually graphics cards, so the rendering is
happening in the computer’s GPU in both cases. If you’re using the onboard
outputs, it leaves straight from the GPU. If you’re using a Blackmagic
output device, after it’s rendered, it’s going to make another trip to RAM
so that the computer can shove the data out the Blackmagic. </p>
<p style="margin:1.2em 0px!important">Hope that helps!</p>
<p style="margin:1.2em 0px!important">-Andy</p>
<p style="margin:1.2em 0px!important">—<br>Andy Lang<br><a
href="http://twitter.com/SoundGuyAndy">@SoundGuyAndy</a><br><a
href="mailto:support@figure53.com">support@figure53.com</a></p>
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