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Rendering Speed!

Posted: Sat, 3rd Apr 2010, 2:45pm

Post 1 of 4

EmpireTen

Force: 400 | Joined: 13th Jan 2008 | Posts: 2

EffectsLab Pro User

Gold Member

I really don't mean to be THAT GUY, but, how can you speed up rendering? It seems really slow for me. It took 30 minutes just to render 300 frames, then I realized that it was only the back half of the film. So it took another 50 minutes to render the first 500 or so frames. Is this normal? Because that seems insanely slow! And the quality really wasn't that good.

I guess my question really is, how can, if you can, speed up the rendering speed, also what settings will make the quality better?

Thanks,
Kris
Posted: Sat, 3rd Apr 2010, 3:57pm

Post 2 of 4

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

Rating: +1

Basically, you can speed up rendering by using lower resolution footage, by using less effects, or by simplifying the effects you are using. Obviously for final output, none of these are things you want to do, but to speed up test renders and the like, they are options.

Rendering always takes a long time, that's the nature of visual effects work. There were scenes in the film Hollow Man which took 24 hours per frame to render, with an entire render farm of computers working on the job. Just to put your 6 second per frame renders into perspective.

Unfortunately, at the present time the software doesn't take advantage of your graphics card, which would help speed things up. I'm sure its being looked into by the developers though.

As far as quality, make sure the project settings match the format of your footage when you start a project, and render to uncompressed, and you won't lose any quality at all from your original footage. What render settings and codec settings did you use?
Posted: Sat, 3rd Apr 2010, 4:32pm

Post 3 of 4

EmpireTen

Force: 400 | Joined: 13th Jan 2008 | Posts: 2

EffectsLab Pro User

Gold Member

Axeman wrote:

Basically, you can speed up rendering by using lower resolution footage, by using less effects, or by simplifying the effects you are using. Obviously for final output, none of these are things you want to do, but to speed up test renders and the like, they are options.

Rendering always takes a long time, that's the nature of visual effects work. There were scenes in the film Hollow Man which took 24 hours per frame to render, with an entire render farm of computers working on the job. Just to put your 6 second per frame renders into perspective.

Unfortunately, at the present time the software doesn't take advantage of your graphics card, which would help speed things up. I'm sure its being looked into by the developers though.

As far as quality, make sure the project settings match the format of your footage when you start a project, and render to uncompressed, and you won't lose any quality at all from your original footage. What render settings and codec settings did you use?
I just use the default settings which I guess are single file output type and .avi file type. As for the codec settings, I'm not quite sure. Thanks for the reply, now I know it's not just me!
Posted: Sat, 3rd Apr 2010, 9:44pm

Post 4 of 4

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

After you click Render, you are presented with a Compression Settings window, which is where you select the codec. there is a bit of info regarding which codec you should use in this article. There isn't a clear answer, unfortunately, as which codec is best will depend on your specific requirements and circumstances. that should hopefully familiarize you with the options a bit though. Also, this article explains exactly how to change the codec you render to.