Hi,
My understanding of SVRT is that SVRT can either :
Suggest, based on your timeline content, the most appropriate output profile - preset or custom - to speed up rendering in production. Use ALT-s to show the SVRT track above the timeline.
and/or
speed up rendering if your timeline content matches your chosen production output.
These two may sound similar but in workflow terms they are very different. One is suggesting a suitable output format for you to use, the other allows you to chose your output format and then avail of SVRT if your workflow is planned accordingly.
For example, I have just finished a wedding video, compiling a 3 day event into 34 mins, the content is from multiple sources and cameras, image and video, .mp3 and .wav audio.
My workflow is to split the production into sections (11 in this case), compile and edit for each section, produce to MY CHOICE of output. This output choice will, of course, depend on several variables - such as content specs, audience type, playback facilities, streaming etc. etc.
SVRT is highly unilkely to be activated or of any significant use at this stage because of the multiple content types and amount of editing required.
However, when all the sections are completed, I can assemble them, do any minor transitions between sections etc. and then produce to my chosen output and SVRT will kick in and the final compiled render will be much, much quicker.
Any glitch or change in any particular section at this stage means only that the section needs to be edited, re-produced (No SVRT) and inserted into the final compilation where the whole can be re-produced with SVRT.
The key to understanding the use of SVRT is probably here, although this is from an old FAQ:
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"Intelligent SVRT can be applied to video clips in the MPEG-1, MPEG-2, H.264 (Ultra64 version only) and DV-AVI (Type I) formats. In the following conditions, clips (or portions of clips) do not require rendering during production, and SVRT can therefore be applied:
The frame rate, frame size, and file format are the same as those of the destination production profile.
The bitrate is similar to that of the destination production profile.
The TV format is the same as that of the destination production profile.
If all of the above conditions are met, SVRT can be used.
Any clips that do not meet the above criteria are fully rendered without SVRT
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As you can see the chances of a timeline content exactly meeting those criteria in normal cicumstances is probably limited.
I stand to be corrected but I believe that in no case can SVRT be activated for a timeline content of images alone, SVRT only becomes a possibility for video content.
Hope that helps,
Adrian
This message was edited 3 times. Last update was at Oct 14. 2017 06:04
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