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Increasing speed more than 6x for speed-ramping
http://forums.luma-touch.com/viewtopic.php?f=25&t=8158
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Author:  vovka.dq [ Mon Nov 11, 2019 3:17 am ]
Post subject:  Increasing speed more than 6x for speed-ramping

Why is maximum acceleration ratio limited by six? This conversion does not have high computational complexity, as i know.
I would like to have acc ratio of 20-40 for making speed-ramp transitions in my drone videos.. Why do you set this limit?
May be there is another way to do this..
But it’s extremely inconvenient to overload several times a video segment for repeated acceleration, for example..
A small example of what I would like to get in the attachment.

PS I found a information that it is ios restriction and clips would need to be rendered for faster speeds.
Please implement that if you can..

https://yadi.sk/i/SOdLPxL_gf4i_w

Author:  Dave Barton [ Mon Nov 11, 2019 3:42 am ]
Post subject:  Re: Increasing speed more than 6x for speed-ramping

Hi vovka.dq

You found the answer to your own question:

'PS I found a information that it is ios restriction and clips would need to be rendered for faster speeds'

(LF keeps the amount of pre rendering to a minimum)

I know what you mean about speed ramping with your drone - I use key frames with mine

Proper speed ramping is on the 'to do' list and is a much requested feature (but is not being tested yet)

Author:  netsrac27 [ Mon Nov 11, 2019 3:59 am ]
Post subject:  Re: Increasing speed more than 6x for speed-ramping

While working on it, they could add key frames for speed. Can't believe that this is so hard to implement...

Author:  vovka.dq [ Mon Nov 11, 2019 4:26 am ]
Post subject:  Re: Increasing speed more than 6x for speed-ramping

Quote:
I know what you mean about speed ramping with your drone - I use key frames with mine
Thank you..
Can you explain how to make speedramp with keyframes?

Author:  Dave Barton [ Mon Nov 11, 2019 4:40 am ]
Post subject:  Re: Increasing speed more than 6x for speed-ramping

:oops: :oops: Ok :oops: :oops:

I wasn't winding you up :oops: :oops: but I admit that what I just typed was rubbish :oops: :oops: (It's been a while since I did it) :oops: :oops:

I select my clip and place cuts at suitable locations to change the speed and then change the speed of each clip slightly

It takes ages and providing you don't make big changes to the speed it's difficult to notice any jumps

I always look for moving things within the frame - cars etc to try to minimise jerkiness

Yes, I was talking junk before :oops: :oops: and yes, I'm hoping for proper speed ramping :oops: :oops:

Author:  vovka.dq [ Tue Nov 12, 2019 3:30 am ]
Post subject:  Re: Increasing speed more than 6x for speed-ramping

Thank you, I hope LF will get normal acceleration soon.

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