Blackmagic Forum

Posted: **Tue May 06, 2025 4:05 pm**

Hey folks,

Does anyone have an idea of what might be causing this kind of warping effect? They are 100% not intended.

Output Image:

: Screenshot 2025-05-06 085511.jpg (158.29 KiB) Viewed 408 times

In the Fusion page:

: Screenshot 2025-05-06 085531.jpg (165.95 KiB) Viewed 408 times

My Node Graph:

: Screenshot 2025-05-06 085645.jpg (237.9 KiB) Viewed 408 times

I am using a Plugin called "colourlab ai" to help grade.

Any thoughts would be great thank you

Posted: **Tue May 06, 2025 5:09 pm**

That looks like a framerate change with Optical Flow enabled. Change frame rate to be timeline frame rate and/or optical flow to frame blend or nearest neighbour.

Posted: **Tue May 06, 2025 6:51 pm**

Mads Johansen wrote:That looks like a framerate change with Optical Flow enabled. Change frame rate to be timeline frame rate and/or optical flow to frame blend or nearest neighbour.

Hi there Mads - thanks for the help.

When you say change frame rate - do you mean for the composition? If it's at 59.94, and my timeline is 23.976m but I want to be able to slow down this footage in the timeline, what should I do?

I can change to nearest neighbor as a workaround, but I'm curious as to best workflow.

Should my fusion compositions be timeline speed and then do retiming of clips within fusion?

Thank you

Posted: **Tue May 06, 2025 9:58 pm**

Zanshin wrote:I'm curious as to best workflow.

Change the FPS in Clip Attributes.

Blackmagic Forum

Warping in my Output Image

Warping in my Output Image

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Re: Warping in my Output Image

Re: Warping in my Output Image