RedCine Render Times

[ThomtheEditor]

Has anyone got any tips or tricks to squeeze the fastest render times out of your machine? I know in After effects if you render the Caps Lock enabled it disables previews on the desktop thus effectively cutting render times in half, anything like that for RedCine?

I've found that dropping the show quality down to it's lowest possible choice (1/4 res. Medium), zooming out of the viewer, and disabling stacks viewing while rendering altogether doubled my processing speed.

Anything else out there, is RedCine effectively utilizing all cores?

Just wondering, thx!

~T

 

[Terry Wester]

I've found that dropping the show quality down to it's lowest possible choice (1/4 res. Medium), zooming out of the viewer, and disabling stacks viewing while rendering altogether doubled my processing speed.
~T

I would use "1/4 res. High" if you are processing in draft mode.
Check out this thread It has a link to a short screen capture movie I made.

 

[Matthew Verkler]

RedCine is using all 8 cores on my MacPro 3.2 GHz. According to Kevin Stanley, Red "Flowmaster", RedCine uses the CPU's to process, and that the GPU is just "handling metadata". So 8 core machines should be helpful.

Definitely, bringing the display resolution down to 1/4 High or Medium makes a HUGE difference, as right now RedCine is redrawing every frame for the screen as it's rendering out. So reducing its load for this non-essential task during rendering speeds things way up.

Having NR on can slow things down a bit. "Process" quality changes things a lot. With that set to standard, I'm getting a render ratio of 4:1 when taking 4K 2:1 footage down to 1080 HD Quicktime ProRes. When process is set to high, the ratio goes to roughly 20:1. Standard is still very usable, so when time matters, it's the way to go.

Filter settings can change render time a bit, but not that much. Filter settings can really affect the look of the footage - gaussian really smoothes things out, for example, while linear leaves very tiny "grains". Test to see what's best for your footage - there is some tradeoff between sharpness and smoothness. I wish there was a guide for the various filters; I know most of them, but it's nice to have it laid out, perhaps like Photoshop does with a basic description of what it's good for next to the filter name.

4:1 render ratio is not bad at all. One hour of footage takes four to process. If I have more time where the machine isn't doing anything and I don't need to edit yet, I can process at high. And if I want to start editing immediately, I can throw down the half-size proxies on a timeline in FCP and get busy on 'em, then either use them as is (to fill the 1080 vertical, blow up 6%, no big deal. And the proxies from 4K 2:1 look quite good actually), or use Crimson to roundtrip to RedCine and back. The key to using the proxies as is is to have tweaked the metadata during shooting to be close to what you want, as the proxies use the metadata to interpret the RAW, and as such, are "baked in" to the proxies.

 

[Mark Andersen]

Has anyone got any tips or tricks to squeeze the fastest render times out of your machine? I know in After effects if you render the Caps Lock enabled it disables previews on the desktop thus effectively cutting render times in half, anything like that for RedCine?

I've found that dropping the show quality down to it's lowest possible choice (1/4 res. Medium), zooming out of the viewer, and disabling stacks viewing while rendering altogether doubled my processing speed.

Anything else out there, is RedCine effectively utilizing all cores?

Just wondering, thx!

~T

truthfully, I do it at nite. I hit the cool RED go button, and go home.

 

[ThomtheEditor]

Unfortunately we're working a music video that shot many many takes running a 3 camera setup and all footage needs to be rendered twice as were using 2k files from RedCine and the effects house wants all the footage not just the cuts at 2k dpx (all green screen) so we're already rendering around the clock as it is.

The fastest i've gotten is 4:1 while the machine is doing nothing else which is nice. However i have 3 machines running it all and other people are on and off of them during the course of the day and those are getting a depressingly slow 8:1 thruput :angry02:

Verko, thanks for the detailed response quite helpful!
~T

 

[Kenn Michael]

The key is to have the display setting match the debayer quality.

Eg.

If you're doing Full Quality Render - set the display to Full High.
If you're doing a Standard Quality Render (1/2 Debayer) - set the display to 1/2 High.
If you're doing a Draft Render (1/4 Debayer) - set the display to 1/4 High.

Anything different than that and your renders WILL be slower.

On an 8-Core MacPro (2.8 GHz), I'm getting 15-16x for 4K source at Full and 3-4x for Standard.

 

[David Nardini]

CLARIFICATION please ...

CLARIFICATION please ...

The key is to have the display setting match the debayer quality.

Eg.

If you're doing Full Quality Render - set the display to Full High.
If you're doing a Standard Quality Render (1/2 Debayer) - set the display to 1/2 High.
If you're doing a Draft Render (1/4 Debayer) - set the display to 1/4 High.

Anything different than that and your renders WILL be slower.

On an 8-Core MacPro (2.8 GHz), I'm getting 15-16x for 4K source at Full and 3-4x for Standard.

Am I reading this correctly (IGNORING render speed) ... the QUALITY of the render output is affected by the selected 'DISPLAY' pull down !?!?

I was under the impression that the 'DISPLAY' pull down only affected the viewing (and playback ease) rather than the OUTPUT QUALITY from the render ... ???

 

[Kenn Michael]

No, render output is not affected by the selected display pull down. Rendering speed IS though. Common sense would just have display set to 1/4 when rendering (which is originally what Jim suggested some months ago), but apparently a blanket setting of 1/4 when rendering slows down rendering speed in Standard and Full mode.

Display affects render speed, not quality.

 

[danielvilar]

Hi there guys...

i read you with great expectations....
i set my display according to my quality....

but it is still unbelieveably slow....

i must be doing something wrong....

i don't understand that a 3,5seconds clip takes 20 minutes to render out to a DVCPRO HD 720p....
i really have a problem with rendering times....and with Format qualities...

let me explain...
i shot at 4k 2:1
i'm trying to edit the project on FC Pro 6.0.2

when trying to export the project i imagine that DVCPRO HD720p should be more than enough to show it on Non HD TV's... (am i wrong?)
but the render time is looooooooooooong!!!! like 200hours for all the sequences... less than 1 hour of film!!!

can anybody help???
how can i speed rendering up????


thanks in advance....
daniel