basic 3D, bug?

Forum|Forum|25 days ago
June 29, 2026
2 replies
19 views

Many times I use basic 3D to adjust a video slightly, in the past it all went well. Now I export the videos to after effects, but it must be fixable in premiere?! This is what happens: I put the basic 3d effect on a video. There appear two black bars on the right and left side. When scrolling over the video the sides appear again. Worst thing is the black bars are there in the render as well.. Hope someone has a fix!! (video included)

Screen Recording 2026-06-29 at 11.45.33.mov

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PaulMurphy

Community Expert

The issue is the order in which effects and motion settings are applied to the clip. To fix it, set Motion > Scale back to 100, then add a Transform effect above the Basic 3D effect and set its Scale to 50%.

Ann Bens

Community Expert

Cannot reproduce on my end. The only thing I find odd is the anchor point.

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PaulMurphy

Community Expert

To recreate the user’s settings:

Create a Color Matte that’s 5728 x 3024
Add it to a sequence that’s 2560 x 1440
Set the Color Matte’s Scale to 50%
Add the Basic 3D effect and set Swivel -3

The sides the of the Color Matte will be cropped. To avoid this, set the Scale back to 100% and add the 50% scale with the Transform effect before the Basic 3D effect.

Ann Bens

Community Expert

Tried putting the video in a matching sequence add the effect and then nest in main timeline.

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