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Severe fps issues when playing an .exr sequence on and image plane and through composure

I'm trying to get an image sequence to play through sequencer as a back plate but am having a major drop in fps when playing it back.

I've attempted reducing resolution from 1920x1080 to 960x540 but still have the same issue.

I initially was trying to get the back plate to play using the composure pipeline as detailed in the quick start and it works fine when using the image sequences provided in that project; however when I substitute my track into the the 'input 0' channel I'm experiencing the sever fps drop I mentioned earlier

I then attempted playing the .exr sequence through an image plate, following this video (https://www.youtube.com/watch?v=q6CrU1A5ByE) but again am having the same issues on playback.

I've been trying different Adobe Media Encoder presets for the image sequence I'm trying to play but am experiencing the same problem with each. Is there a recommended configuration?

I'd appreciate any input or direction on this issue, Cheers!

Product Version: UE 4.19
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asked May 28 '18 at 03:15 PM in Rendering

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You'll likely need to use uncompressed EXRs. See if that's one of settings in the Adobe Media Encoder.

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answered Jun 14 '18 at 02:21 PM

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Max.Chen STAFF
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I'm not sure if this is still relevant in 4.19, but have you tried turning off the thumbnail preview in sequencer? It looks like that could cause a performance hit.

Besides that, is there a drastic difference between your sequence and the one provided in the sample project (depth, profile, number of channels, size)? EXRs can sometimes hold a lot of extraneous data. It looks like they use a proxy sequence at a smaller resolution in the demo.

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answered May 31 '18 at 04:23 PM

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