Premiere Pro - Lumetri Color edit causing long renders

Community Beginner ,
Jun 15, 2022 Jun 15, 2022

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Hello all,

 

I'm editing an 8 minute baby shower video and the export time starts at 3 hours and typically climbs to around 8 hours before I cancel the export. 

it also takes up to 20 minutes to render in to out on timeline. 

This is all due to the Lumetri Color edits I've applied to an adjustment layer that stretches across the entire timeline. Any change causes entire timeline to turn red. Does fine without it.
Effects applied:

basic correction (contrast, whites, blacks)

sharpen to +100

vibrance -20

shadow tint

vignette -5

 

 

Video clips shot on Sony A7R iii. 29.97fps, UHD, H.264 4:2:0 200Mbps

 

Sequence settings match camera footage 

 

Export settings: (preset) Facebook 2160p 4K ultra HD

so I can upload to Instagram. 

target bitrate changed to 20Mbps to keep video under 1GB (996MB estimated size)

 

Any input would be nice. I've never had a video take this long to export. 

 

CPU: intel i7 11700KF

GPU: rtx 3060 phoenix 12GB vram

RAM: 32 GB

SSD (with premiere and project files): WD Blue 2TB SN570

TOPICS
Editing , Effects and Titles , Export , Formats , Hardware or GPU , Performance

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correct answers 1 Correct answer

Adobe Community Professional , Jun 15, 2022 Jun 15, 2022

Sharpening to that extent might be an issue. That's a long-GOP media and you don't have perhaps the RAM  that your CPU would need to work faster at it. And 8 cores anymore isn't 'that much' ... sigh.

 

So you might try reducing the Sharpening or simply eliminating it, see if it exports faster.

 

Neil

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Adobe Employee ,
Jun 15, 2022 Jun 15, 2022

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Hi,

What is the renderer selected in your project settings? If it is software renderer, can you please try with CUDA renderer?

 

-Vinayak

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Community Beginner ,
Jun 15, 2022 Jun 15, 2022

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I have Mercury Playback Engine GPU Acceleration (CUDA)

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Adobe Community Professional ,
Jun 15, 2022 Jun 15, 2022

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Post screenshot export settings.

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Community Beginner ,
Jun 15, 2022 Jun 15, 2022

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4393042D-D00C-484B-91F7-04354E2A0A4C.jpeg

133180A8-7D0D-4216-8C36-F750032FFEE9.jpeg

CA55726C-559B-495E-A1BF-0EDB50FEEBF7.jpeg

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Adobe Community Professional ,
Jun 15, 2022 Jun 15, 2022

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Sharpening to that extent might be an issue. That's a long-GOP media and you don't have perhaps the RAM  that your CPU would need to work faster at it. And 8 cores anymore isn't 'that much' ... sigh.

 

So you might try reducing the Sharpening or simply eliminating it, see if it exports faster.

 

Neil

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Community Beginner ,
Jun 15, 2022 Jun 15, 2022

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It seems like I found the issue! I failed to mention that I also added an unsharp mask. (This was to mimic a VHS look).

anount: 80

radius: 4

threshold: 0

 

render with no effects at all: 3:40 min

 

render with just color grade: 3:48 min

(everything minus sharpening + unsharp)

 

render with color grade + sharp to 100:  3:49 min

 

Render with everything + unsharp mask:  8+ hours

 

Thank you for your help!

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Adobe Employee ,
Jun 16, 2022 Jun 16, 2022

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Hi,

Thank you for isolating the problematic effect and reporting here. This is extremely helpful!

 

And I am pleased to share that starting with Premiere Pro Beta v22.6.0 (Build 17), the Unsharp Mask effect supports hardware acceleration. So if you could try to export your original project in latest Premiere Pro Beta, it should take much less time to render. Please do share the results with us, if you get a chance to try this! You can install the Beta version besides the regular version.

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Adobe Community Professional ,
Jun 16, 2022 Jun 16, 2022

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Nice to hear Unsharp Mask getting some attention ...

 

Neil

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