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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

REDLine using --useRSX yields black frame

M

Michael MK Siu

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Dear all,

I am trying to use REDLine to process my *.R3D to TIFF.

I am able to get REDLine going, but all the Tiff files created are just black frames. (They were not supposed to be Black frames as checked by proxies and having it corrected in RedAlert.)

I have switched to using REC709 for my color space, and REDLog for as my Gamma space setting. Would this have any effect on my output?

Any help is appreciated.

Thank you.
Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Hi Michael,

Try removing the RSX and redoing the look in RA. Some older versions of RSX files are causing black frames.
 
Does rendering without the --useRSX work? can you post the full command you're using?
 
Deanan,

Rendering does work without the --useRSX parameter. But without the --useRSX paramter, it seems to default to camera metadata? Everything looks de-saturated and flat.

The look was corrected and and value adjusted through RedAlert, and I would like preserve the color grading changes that we did in RedAlert.

Command is of follow:

redline -i ./Desktop/123.R3D --useRSX 2 -w 1

If there is no RSX file present in the directory, the output works. (but without the adjusted look, of course). Without RSX file present, outputting to Tiff as well as QT also yields a black .mov file.

But if I input each parameter manually rather than using --useRSX, the render works flawlessly.

Of note, I am using REDAlert 3.3.8, should I downgrade back to an older version? Although the functions of REDRushes is quite handy to have!

Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Try --useRSX 1. There was a bug in 3.38 with usersx 2.

It might be the same bug you're seeing.
 
Deanan,

Thank you! And you are correct. After a few hours of testing, I've also isolated the problem. If I use --useRSX 1, I am able to render out with no problem. But use --useRSX 2 renders out black frames to all formats.

However, using --useRSX 1 does not seem to allow me to set my TC in and TC out in the command line. The TC in and out points as set in REDAlert overrides the -S and -E command I input to redline.

Is there a way around it?

Thanks,
Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
It's fixed for the next release (usersx 1). However, useRSX one should still let you set TC in/out point with -S and -E. Are you using edgecode or Ext/TOD or -S/-E?
 
Deanan,

Many thanks for the continuous help! Really appreciate it.

I am using EC at the moment, and using -S and -E command.

I have tried inputting the -S 00:00:xx:yy -E 00:00:aa:bb --useEC command both before and after --useRSX 1 and it still wouldn't override the TC in / out as set by RedAlert in the RSX file.

This is the case with both REDLine 3.3.6 and 3.3.8. Can you verify if indeed you are able to override the TC in / out with -S and -E command on your end, and which build are you using?

As well any other suggestions or work around I should try?

Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Try -S 01:00:xx:yy instead of -S 00...
Or check the edgecode using printmeta.

This what i get (rsx is set to 2 and 60 for in/out) :
theater1:0shortclips deanan.dasilva$ REDline -i mac3.R3D --useRSX 1 -o test -R 4 -w 11 -S 01:00:00:06 --useEC -E 01:00:00:09
test.mov : 6
test.mov : 7
test.mov : 8
test.mov : 9
Done.
 
Deanan,

This is still not working for me.

I have tried both the -S and --startTC command, putting the --useEC, -S, -E command before and after --useRSX 1, and the render is still defaulting to the TC I / O set in REDAlert.

For example, rsx is set to 120 and 200 for in/out:

REDLINE -i ./Desktop/123/123.R3D -useRSX 1 -w 1 -S 01:00:00:05 --useEC -E 01:00:00:06
././Desktop/123/123.0000120.tif
././Desktop/123/123.0000121.tif
././Desktop/123/123.0000122.tif

Any other thoughts?

Or, is there a easy way to translate edge code to frame count so I can try it that way?

Thanks,
Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Deanan,

I tried outputting into QT this time following your command exactly:

REDline -i ./Desktop/123/123.R3D --useRSX 1 -w 11 -R 4 -S 01:00:00:06 --useEC -E 01:00:00:09

And the TC of the QT file that it outputted was overridden by the -S and -E TC I set. However, when trying to output to TIFF / DPX, REDline still defaults to the TC i/o on the RSX file.

Are there additional command I should use while outputting to TIFF / DPX?

REDline -i ./Desktop/123/123.R3D --useRSX 1 -w 1 -S 01:00:00:06 --useEC -E 01:00:00:09



Thanks,
Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Deanan,

Here's the printeMeta 1 output:

Filename: ././Desktop/123/123.R3D
ReelID: A001
Camera: A
Reel: 001
Clip: 001
Date: 20080719
TimeStamp: 115600
FrameWidth: 4096
FrameHeight: 2048
FPS: 23.976
Total Frames: 562
TOD TC Start: 11:56:00:00
Edgecode Start: 01:00:00:00
TOD TC End: 11:56:23:09
Edgecode End: 01:00:23:09
ColorSpace: 12
GammaSpace: 1
Kelvin: 5700.00
Tint: 0.00
ISO: 320
Exposure: 0.00
Saturation: 1.00
Contrast: 0.00
Brightness: 0.00
GainRed: 1.00
GainGreen: 1.00
GainBlue: 1.00
Black X: 0.00000
Black Y: 0.00000
Toe X: 0.25000
Toe Y: 0.25000
Mid X: 0.50000
Mid Y: 0.50000
Knee X: 0.75000
Knee Y: 0.75000
White X: 1.00000
White Y: 1.00000

Thanks,
Michael
---
[www.dvshortfilms.com]
[www.mksiu.com]
 
Ok, looks like a bug with dpx/tiff output and multithreading. Try --procs 1.
 
Deanan,

This worked! Thank you!

Using --useRSX 1 and --procs 1, i am able to override the TC in / out point from the RSX file with -S and -E command.

Although admittedly I do not fully understand the --procs command. Can you explain how using --procs 1 will affect the process and speed of render from REDLine?

Michael,
---
[www.dvshortfilms.com
[www.mksiu.com]
 
It does affect speed a bit but we haven't optimized things yet so I'd recommend running six redlines at the same time for an 8core.
 
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