PPRO Scripting: Custom Bezier Keyframe Interpolation

[_nicdean]

The PPro UI allows editing keyframe handles to set custom easing curves in Effect Controls Panel.

Currently, PPro scripting only allows Linear, Hold, and Bezier keyframes:

During migration to UXP, please add API support for custom bezier interpolation on keyframes. This would enable developers to build more robust presets, plugins, and extensions to automate keyframe creation & light motion graphics in PPro.

It would also allow devs to build custom easing panels, with easing presets, and a better curve editor. These products are extremely popular for After Effects: Flow, Ease Sync, After Ease, etc.

You could model the API after AE's KeyframeEase object.

Here are threads of people requesting this exact feature and related issues:

• https://community.adobe.com/t5/premiere-pro-discussions/premiere-pro-scripting-keyframe-interpolatio...
• https://community.adobe.com/t5/premiere-pro-ideas/make-keyframe-handles-pin-horizontally-upon-holdin...
• https://community.adobe.com/t5/premiere-pro-ideas/easy-ease-keyframe-interpolation/idi-p/15183340
• https://community.adobe.com/t5/premiere-pro-discussions/keyframe-controls/m-p/13042007
• https://community.adobe.com/t5/premiere-pro-ideas/edit-keyframe-velocity-numerically/idi-p/14015167

[bbb_999 · Accepted solution]

"These requests seem oddly familiar...Oh, hey Nic!"

😉

>During migration to UXP, please add...

Migration of existing APIs remains our priority. Once we approach 1:1 parity with what was previously available via CEP+ExtendScript, we can begin considering new API feature requests. 

[_nicdean]

Hello @bbb_999! Understood about migrating the existing APIs first.

Hope that this feature request & the supporting threads are helpful for prioritization. Trying to get this one added to the top of the list after 1:1 parity 🙂

[bbb_999]

Good luck garnering more votes for your proposed Keyframe work; the Captions Coalition is already building support with Product Management... 😉

[_nicdean]

I strongly support all Captions updates! Haven't seen much discussion on keyframes, so I wanted to make the official ticket.

Captions, emojis, and keyframes are the 3 pillars that I think would be well received by many users.

[bbb_999]

Makes sense; I'm sure they'd ALL be well-received.

[adgeb91931600]

yeah I know PLENTY  of people myself included that would greatly benefit from official bezier handle infoe being integrated with UXP.