I use SVRT whenever possible, that is exactly what you described.
The time it takes to save the video if it has nothing to do (render) in the video is similar to making a copy of the original file.
When we visualize the cursor runs fast and slows down when it encounters something that needs to be processed. AMD-FX 8350 / 8GB DDR3
SSD SUV400S37240G / 2-HD WD 1TB
AMD Radeon R9 270 / AOC M2470SWD
Windows 7-64 / PD16 Ultimate

Quote: I use SVRT whenever possible, that is exactly what you described.
The time it takes to save the video if it has nothing to do (render) in the video is similar to making a copy of the original file.
When we visualize the cursor runs fast and slows down when it encounters something that needs to be processed.

Thanks Playsound for your feedback.

When you write “that is exactly what you described” are you referring to all 4 questions or only to question A?

Quote:

Quote: I use SVRT whenever possible, that is exactly what you described.
The time it takes to save the video if it has nothing to do (render) in the video is similar to making a copy of the original file.
When we visualize the cursor runs fast and slows down when it encounters something that needs to be processed.

Thanks Playsound for your feedback.

When you write “that is exactly what you described” are you referring to all 4 questions or only to question A?

The PD12 does what he wants, if the video is already in standard compatible with BD, AVCHD or DVD, working with videos created by Sony camcorders, SVRT works well.

Intelligent SVRT button, select profile based on the original video.
If you show 100% will only copy.
If it shows less than 100% will have rendered parts, text effects etc. ..
If show, 0% will render the whole video.

Note: Even SVRT shows, 0% have cases I create a profile manually, which will link SVRT in my case for DVD projects.
Use PD12 trial (gratis) to analyze from their videos.
Wait for other opinions AMD-FX 8350 / 8GB DDR3
SSD SUV400S37240G / 2-HD WD 1TB
AMD Radeon R9 270 / AOC M2470SWD
Windows 7-64 / PD16 Ultimate

Quote: I am currently evaluating PD12 Ultimate to edit video clips shot with a Sony RX100 in AVCHD 1080p60 (28 Mb/s) on a 4th generation Intel 4 core PC, 16G ROM, NVDIA GeForce GT 740M and Win 8.1

Could someone help me with the following questions regarding Smart Rendering with PD12 Ultimate...

A- Will it automatically Smart Render such a production or do we have to explicitly ask for it by... “in the Produce window, click the Intelligent SVRT button on the Standard 2D or 3D tab. To select a video profile, just select it in the Intelligent SVRT dialog and then click Apply.”

B- I read in the User's Guide under the “Intelligent SVRT: When Is Used?” section:

“... In the following conditions, clips (or portions of clips) must be rendered during production, and SVRT can therefore not be applied:

Adding a title or transition effect
Modifying the color of a video clip
Merging two video clips (clips within 2 seconds before or after the merged clips will be rendered)
Splitting a video clip (clips within 2 seconds before or after the split will be rendered)
Trimming a video clip (clips within 2 seconds before or after the trimmed clip will be rendered)”

B1- Does that mean that only the title or transition portion of a clip will be rendered in production by PD12 and not the whole clip?

B2- Does that mean that if only the audio of a clip is modified and not its video, PD12 will only render in production the audio of that clip and not its video?

B3- Does it mean that if a project is only made of straight cuts from a number of merged / split / trimmed clips with an average clip length of say 10 seconds, than 20% of the whole project will be rendered (2sec / 10sec) during production?

90 views, most probably including many Senior Contributors and no clear answers to my 4 basic questions... strange!

Hi,
In your other post I have asked for a sample file: http://forum.cyberlink.com/forum/posts/list/31517.page

SVRT functions IF your video meets the criteria - has a profile that matches your video clip.

If you make a change to a video that has a suitable Profile it is only the parts you change which will be re-rendered, the rest is left as it was. Remember ANY change you make, by this we mean adding something* that wasn't there before.

*Titles, transitions, effects, crop, audio, anything you make a change by adding something to the tracks.

Straight cuts to a video - so you have a combination of split clips or merging of same source files (same type of files from the same or similar camera which uses the same Profile as you've selected) will NOT be re-rendered.

I haven't given you specific answers to your questions.
Dafydd

Quote: A- Will it automatically Smart Render such a production or do we have to explicitly ask for it by... “in the Produce window, click the Intelligent SVRT button on the Standard 2D or 3D tab. To select a video profile, just select it in the Intelligent SVRT dialog and then click Apply.”

If SVRT works correctly for your camera footage the following would be the answers based on my SVRT experience.

No, you need to select it. Produce window, Fast video rendering technology, SVRT. Intelligent SVRT will help select a proper profile if you don't know your source footage format or maybe have multiple source formats. Depending on source camera you may also have to activate "Allow SVRT on single IDR...." in Preferences > Produce.

Quote:
B1- Does that mean that only the title or transition portion of a clip will be rendered in production by PD12 and not the whole clip?

B2- Does that mean that if only the audio of a clip is modified and not its video, PD12 will only render in production the audio of that clip and not its video?

B3- Does it mean that if a project is only made of straight cuts from a number of merged / split / trimmed clips with an average clip length of say 10 seconds, than 20% of the whole project will be rendered (2sec / 10sec) during production?

B1 - Yes, but it also applies to more than just titles or transitions. If you put a pic on video track 2 that section would also need rendering. If you used some effect,... on and on. Any region that would have a modified composite picture relative to your pure source would need to be rendered.
B2 - Yes
B3 - At every split PD will use CPU encoding. So if I have a clip 600 seconds and no splits or edits, that will produce faster than the same clip split into 10 pieces. At 9 split sections, CPU encoding will be used around each split, 36 seconds worth. Your numbers are not exact but you have the picture. If my clip was 100 seconds and I split once, 4/100 would need rendering. 2 seconds pre and post split.

Jeff

Quote:

Quote: A- Will it automatically Smart Render such a production or do we have to explicitly ask for it by... “in the Produce window, click the Intelligent SVRT button on the Standard 2D or 3D tab. To select a video profile, just select it in the Intelligent SVRT dialog and then click Apply.”

If SVRT works correctly for your camera footage the following would be the answers based on my SVRT experience.

No, you need to select it. Produce window, Fast video rendering technology, SVRT. Intelligent SVRT will help select a proper profile if you don't know your source footage format or maybe have multiple source formats. Depending on source camera you may also have to activate "Allow SVRT on single IDR...." in Preferences > Produce.

Quote:
B1- Does that mean that only the title or transition portion of a clip will be rendered in production by PD12 and not the whole clip?

B2- Does that mean that if only the audio of a clip is modified and not its video, PD12 will only render in production the audio of that clip and not its video?

B3- Does it mean that if a project is only made of straight cuts from a number of merged / split / trimmed clips with an average clip length of say 10 seconds, than 20% of the whole project will be rendered (2sec / 10sec) during production?

B1 - Yes, but it also applies to more than just titles or transitions. If you put a pic on video track 2 that section would also need rendering. If you used some effect,... on and on. Any region that would have a modified composite picture relative to your pure source would need to be rendered.
B2 - Yes
B3 - At every split PD will use CPU encoding. So if I have a clip 600 seconds and no splits or edits, that will produce faster than the same clip split into 10 pieces. At 9 split sections, CPU encoding will be used around each split, 36 seconds worth. Your numbers are not exact but you have the picture. If my clip was 100 seconds and I split once, 4/100 would need rendering. 2 seconds pre and post split.

Jeff

Thanks JL-JL for your clear feedback.

A- So if I get you right, as I will almost always film in AVCHD 1080p60 all I need to do is to select the “AVC 1920 x 1080/60p (28 Mbits/s)” Profile Name/Quality and to check Fast Video Rendering Technology / SVRT... and that's all. On the other hand, if I was to film in an “unknown or multiple” formats than I could first check Intelligent SVRT to help me select the proper profile... and still check Fast Video Rendering Technology / SVRT... and that's all.

B3- ... 2 seconds pre and post split... Your answer surprises me. The User Guide text says “2 seconds before OR after the split/merge/trim” and not “2 seconds before AND after the split/merge/trim”... or am I missing something.

A - I think you resolved what PD does in your other post while playing with MPEG footage.

Quote: B3- ... 2 seconds pre and post split... Your answer surprises me. The User Guide text says “2 seconds before OR after the split/merge/trim” and not “2 seconds before AND after the split/merge/trim”... or am I missing something.

Your initial question appeared to be centered around performance, essentially how much of the timeline would require CPU encoding (slow) vs SVRT (fast) after making some simple splits in the timeline
To answer, I put 240 seconds of footage in the timeline and split 23 times for 24 total clips, no edits or additions, you need sufficient duration and number of clips to adequately isolate produce time effects.

1) Produce with SVRT, recover elapsed wall time
2) Produce the single clip generated in item 1 above with CPU encoding, recover elapsed wall time, this establishes pure CPU encoding performance
3) Produce the single clip generated in item 1 above with SVRT encoding, recover elapsed wall time, this establishes pure SVRT performance

With the above 3 simple timed tests and a little middle school algebra one can solve what fraction of my original 24 clips 240 second timeline was CPU encoded and what was SVRT encoded to result in the proper elapsed wall time.
I had 100 seconds CPU, 140 seconds SVRT, so from a performance point of view, 100sec/24clips=4.2sec for each clip, I have ~4 seconds of the clip that needs the slower CPU encode rate. Exactly what PD does, I don't know nor would I trust the docs, however, from a performance perspective, effectively about 4seconds per clip needs the slower CPU encode rate. One can watch the produce progress bar and gain some insight into regions that must have been encoded as progress slows. A repeat of the above with 60 clips and 360 seconds timeline yielded the same overall results, ~4sec/clip needed a slower encode rate.

The docs for SVRT rules also state:
"If the total duration of the production is less than one minute and any portion
of the video requires rendering, the entire production will be rendered for
efficiency reasons."

Drop a 50 second clip in the timeline and add a 5 second title at the beginning, what are your produce results? Watching the produce performance on my box and my clips it's easy to see the beginning was CPU encoded (slower) and the remaining of the clip SVRT (very fast), appears to also contradict the statement of "entire production will be rendered".

I should caution, SVRT may or may not fulfill your needs, it does have some anomalies that may make the end production unsatisfactory for your footage, you will have to be the judge of that end result.

Jeff

Quote: A - I think you resolved what PD does in your other post while playing with MPEG footage.

Quote: B3- ... 2 seconds pre and post split... Your answer surprises me. The User Guide text says “2 seconds before OR after the split/merge/trim” and not “2 seconds before AND after the split/merge/trim”... or am I missing something.

Your initial question appeared to be centered around performance, essentially how much of the timeline would require CPU encoding (slow) vs SVRT (fast) after making some simple splits in the timeline
To answer, I put 240 seconds of footage in the timeline and split 23 times for 24 total clips, no edits or additions, you need sufficient duration and number of clips to adequately isolate produce time effects.

1) Produce with SVRT, recover elapsed wall time
2) Produce the single clip generated in item 1 above with CPU encoding, recover elapsed wall time, this establishes pure CPU encoding performance
3) Produce the single clip generated in item 1 above with SVRT encoding, recover elapsed wall time, this establishes pure SVRT performance

With the above 3 simple timed tests and a little middle school algebra one can solve what fraction of my original 24 clips 240 second timeline was CPU encoded and what was SVRT encoded to result in the proper elapsed wall time.
I had 100 seconds CPU, 140 seconds SVRT, so from a performance point of view, 100sec/24clips=4.2sec for each clip, I have ~4 seconds of the clip that needs the slower CPU encode rate. Exactly what PD does, I don't know nor would I trust the docs, however, from a performance perspective, effectively about 4seconds per clip needs the slower CPU encode rate. One can watch the produce progress bar and gain some insight into regions that must have been encoded as progress slows. A repeat of the above with 60 clips and 360 seconds timeline yielded the same overall results, ~4sec/clip needed a slower encode rate.

The docs for SVRT rules also state:
"If the total duration of the production is less than one minute and any portion
of the video requires rendering, the entire production will be rendered for
efficiency reasons."

Drop a 50 second clip in the timeline and add a 5 second title at the beginning, what are your produce results? Watching the produce performance on my box and my clips it's easy to see the beginning was CPU encoded (slower) and the remaining of the clip SVRT (very fast), appears to also contradict the statement of "entire production will be rendered".

I should caution, SVRT may or may not fulfill your needs, it does have some anomalies that may make the end production unsatisfactory for your footage, you will have to be the judge of that end result.

Jeff

WOW! That is a solid and convincing analysis. Thanks Jeff for your time and effort, I really appreciate it.

You wrote “Your initial question appeared to be centered around performance, essentially how much of the timeline would require CPU encoding (slow) vs SVRT (fast) after making some simple splits in the timeline”.

I understand your impression of me being focus on performance... I guess my choice of words could have been better. Yes, performance is part of what I am looking for but being retired I have a lot of time available !! For me IQ is more important than performance. I shoot video with a Sony RX100 mostly because of its superb IQ (and full manual controls and compactness) so I am looking for an editing software that would keep re-rendering to a bare minimum to preserve the original in-camera IQ. That's where my point on “2secs or 4secs of re-rendering” for each split/merge/trim came from. If it is 4secs then there are (if I understand it properly) twice the number of frames being re-rendered... so twice the number of original in-camera frames are re-calculated with some IQ loss. My video editing projects show typically a 15 secs average clip duration. If each clip requires 4/15 of its frames to be re-rendered for straight cuts alone, that seems a lot to me.

When adding to the straight cuts, tittle/credit, transitions, overlays, audio level adjustments, etc... it adds up to more original in-camera IQ loss... if I understand it properly!

BTW, if a transition at the beginning or end of a clip has a duration of 2secs or less, will it require more original frames to be re-rendered or will it be the same frames that would need to be re-rendered anyway because of the split/merge/trim, as discussed above?