motion blur darkens footage in after effects cc 2018

Forum|Forum|7 years ago
November 28, 2018
5 replies
3400 views

Whenever I try to put motion blur on my footage, it darkens it while the opacity is still at 100%.

I did add a twixtor effect but I'm not sure if that's the problem because when I delete the effect, it remains dark.

What am I doing wrong?

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Correct answer Mo Moolla

Twixtor is causing this issue. Its an interpolation problem.

I also apply Twixtor to a solid and never to footage unless I do it in PP

Try adding Twixtor to a solid layer and set footage as source.

Rick Gerard

I

Izza5CE9

Participant

I have the same problem except when I turn off twixtor, the footage is still dark. I tried pre composing and then adding motion blur but it's not working.

Mo MoollaCorrect answer

Legend

Twixtor is causing this issue. Its an interpolation problem.

I also apply Twixtor to a solid and never to footage unless I do it in PP

Try adding Twixtor to a solid layer and set footage as source.

Rick Gerard

T

thibautv959047Author

Participant

This helped, thank you

T

thibautv959047Author

Participant

yes i need to use motion blur on that

R

Rick Gerard

Community Expert

I don't see any keyframes for position or scale so Motion Blur has no motion in Layer 4 to work with. It should not be doing anything to the layer. If you disable Twixtor by just clicking the FX icon in the timeline does the layer return to normal? If it does then there is some weird interaction going on with Twixtor and Motion blur.

I never apply Twixtor directly to the footage. I apply it to a solid then set the footage layer as the source. It solves a bunch of potential problems, especially when you really mess with the speed of the clip. It also respects the in-point of the layer. Give that a try. If you need to adjust the position or scale, or even animate anything else in the footage just apply those transforms to the solid layer.

I cannot reproduce the error with Twixtor or Twixtor Pro.

R

Rick Gerard

Community Expert

thibautv959047 wrote
...
I did add a twixtor effect but I'm not sure if that's the problem because when I delete the effect, it remains dark.
What am I doing wrong?

I don't know because I can't see the modified properties of the layer that is giving you problems. Select the layer, press the U key twice to reveal all modified properties, purge all memory and disk cache and start turning things off or resetting parameters until the problem goes away. if you can't figure out post a screenshot that shows us what you have done to the layer. There is a really good chance it's just user error.