[Pierre Jasmin]

Unfortunately helicopter blades don’t work well for this technique – there is too much difference between frames for a single motion vector value to represent the proper thing (a bit for the same reason that train wheel goes backward in 18 FPS old movies). The helicopter blade friends includes the hummingbird wings and various insects in motion and close-up.

Option 1: Make a copy of the scene and Render that element only with a lot more FPS or frames (slow down the animation) and frame average AFTER with something like SmoothKit Frame Accumulate — e.g. if you render 5X slower/5X more frames instead of 24, that would be 2 before and 2 after in SK Frame Accumulate and then you posterize time to recover the proper duration.

Option 2: If the camera is static or the blade is easy to isolate. You can sometimes do something with SmoothKit Directional Per-Pixel. Essentially you would need to draw an ellipse with a radial greyscale fill in a precomp that follows the helicopter blade, and use that as the layer the direction is made from and as well use the alpha of that to control where the directional blur is applied (the Length control).

Pierre
RE:Vision Effects

[Pierre Jasmin]

Unfortunately helicopter blades don’t work well for this technique – there is too much difference between frames for a single motion vector value to represent the proper thing (a bit for the same reason that train wheel goes backward in 18 FPS old movies). The helicopter blade friends includes the hummingbird wings and various insects in motion and close-up.

Option 1: Make a copy of the scene and Render that element only with a lot more FPS or frames (slow down the animation) and frame average AFTER with something like SmoothKit Frame Accumulate — e.g. if you render 5X slower/5X more frames instead of 24, that would be 2 before and 2 after in SK Frame Accumulate and then you posterize time to recover the proper duration.

Option 2: If the camera is static or the blade is easy to isolate. You can sometimes do something with SmoothKit Directional Per-Pixel. Essentially you would need to draw an ellipse with a radial greyscale fill in a precomp that follows the helicopter blade, and use that as the layer the direction is made from and as well use the alpha of that to control where the directional blur is applied (the Length control).

Pierre
RE:Vision Effects

[Pierre Jasmin]

“Let me know if you need a guinea pig for the PPro tutorials. ”

Sure, send your email to techsupport at revisionfx dot com

[Pierre Jasmin]

“Let me know if you need a guinea pig for the PPro tutorials. ”

Sure, send your email to techsupport at revisionfx dot com

[Pierre Jasmin]

1. Create a new project
2. Create a new sequence – DV NTSC Standard

The movie you are using already has frame blending in it. So ignore what it looks like and let’s just get the timing right.

3. Add clip to sequence – using SkateBoAM.mov from Twixtor tutorial
4. Add the clip again to the sequence for padding
5. Create a second sequence
6. Add first sequence to second sequence
7. Apply Twixtor 4.5 effect to first clip in first sequence

NO: To Video Track 1 named Sequence 1 in Sequence 2

Here’s the same example in FCP (we are doing the Premiere video tutorials right now) – look at the second part
https://library.creativecow.net/articles/freitag_lori/twixtor-fcp-overview/video-tutorial.php

8. Change Output Control Speed to 50%
9. Playback second sequence – motion is indeed reduced by 50%, but at the point the padding was added, it begins playing from the beginning.

[Pierre Jasmin]

1. Create a new project
2. Create a new sequence – DV NTSC Standard

The movie you are using already has frame blending in it. So ignore what it looks like and let’s just get the timing right.

3. Add clip to sequence – using SkateBoAM.mov from Twixtor tutorial
4. Add the clip again to the sequence for padding
5. Create a second sequence
6. Add first sequence to second sequence
7. Apply Twixtor 4.5 effect to first clip in first sequence

NO: To Video Track 1 named Sequence 1 in Sequence 2

Here’s the same example in FCP (we are doing the Premiere video tutorials right now) – look at the second part
https://library.creativecow.net/articles/freitag_lori/twixtor-fcp-overview/video-tutorial.php

8. Change Output Control Speed to 50%
9. Playback second sequence – motion is indeed reduced by 50%, but at the point the padding was added, it begins playing from the beginning.

[Pierre Jasmin]

I am not at my mac right now but
1) if leader does not work, in the nested sequence just copy the clip a few times (it should work with anything though)
2) if you are changing the in-point in the main sequence, you need to download premiere update from adobe website

maybe send a short project to techsupport at revisionfx dot com with a short movie – should be working.

Pierre

[Pierre Jasmin]

I am not at my mac right now but
1) if leader does not work, in the nested sequence just copy the clip a few times (it should work with anything though)
2) if you are changing the in-point in the main sequence, you need to download premiere update from adobe website

maybe send a short project to techsupport at revisionfx dot com with a short movie – should be working.

Pierre

[Pierre Jasmin]

Thanks for feedback
It’s on V2 FR list already

Pierre

[Pierre Jasmin]

Thanks for feedback
It’s on V2 FR list already

Pierre