Activity › Forums › Adobe After Effects › Misstake while masking Adobe After Effects Misstake while masking Posted by Florian Schwarzer on December 31, 2008 at 11:20 am Hello, I do something critically wrong at masking. I have some screens so you can may be see what im doin wrong . I want to mask the camera display and put in that place a diffrent picture. If i “mask” it nothing happen. Thanks. Travis Kelly replied 17 years, 7 months ago 2 Members · 1 Reply 1 Reply Travis Kelly December 31, 2008 at 1:18 pm change the mask from add to subtract Reply to this Discussion! Login or Sign Up Public All Members My Connections Only Me PublicAll MembersMy ConnectionsOnly Me Public All Members My Connections Only Me Reply to this Discussion! Login or Sign Up