how come my mask is inaccurate in after effects.

[fernandom51020152]

i am trying to mask some footage but when it delete what i mask it its inaccurate. does someone know how to fix it.

[haraujo · Accepted solution]

Hi Fernando

Please post your question only once next time.

You need to pre-compose your layer with all the effects that are distorting it (Warp, Warp 2, ....).

Then apply the mask to the pre-composed layer. Or the other way around.

Mask it, pre-compose and then do the distortion.

Cheers

Henrique