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Brendan.JB
Currently Being Moderated

Unusual render times

Feb 4, 2014 5:41 PM

Tags: #file #slow #render #small #long #too #fluctuate

Hello, I seem to be experiencing weird, fluctuating render times with my projects. Some 10+ minute projects render in 20 minutes or so, others like the one below take far too long for what they are.

 

I am running a Macbook Pro, 2.5ghz Intel Core i7, 8GB 1333 Mhz DDR3 ram, and an AMD Radeon HD 6770M 1GB.

 

Here is a current project I am working on at the moment - please excuse the blurred sections, this is an internal business video and I am required to do this for security.

 

The maximum filesize will only be est. 134mb, the length of the video is 3 and a half minutes, and I am only rendering at 720p with 90 second keyframes. When I render this file it takes upwards of 2 hours; sometimes longer.

 

Render-Settings.jpg

 

The source files are 1920x1080 and 1440x1080, and I have 4-5 nested sequences approx 10-20 seconds long each with warp stabilizer applied to them.

I also have fast color corrector applied to all clips. I usually have a VBR of min-4 max-6 but attempted to change it to CBR to see if that decreased rendering time; it didn't.

I've also tried optimizing the memory for both rendering and memory in the preferences window, but I see no difference.

 

Can you spot anything that might be causing this render to take so long?

 

Thanks in advance for your help.

 

 

Brendan

 
Replies
  • Currently Being Moderated
    Feb 4, 2014 5:52 PM   in reply to Brendan.JB

    I am not surprised!

     

    You got a ot going on there in the differences between source and export

     

    Frame rate : PAL to NTSC...

     

    Square pixel to rectangular

     

    Dimension change

     

    WHy did you choose those settings?

     

    Did source footage match the project settings?

     
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  • Currently Being Moderated
    Feb 4, 2014 6:37 PM   in reply to Brendan.JB

    Sounds like random settings choice issue!

     

    So...

     

    what are the source files?

    what was the sequence setting?

     
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  • Currently Being Moderated
    Feb 4, 2014 7:01 PM   in reply to Brendan.JB

    Hmmm

     

    You still got a lot going on there with mixed media, fx, warp stab. etc...but I cant see anyway around it in your case.

     

    Sorry.

     
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