Turn Opacity to 100% for 1 frame every (user defined with slider) seconds.

[Jeff Kay]

EDIT: ugh I used the wrong formatting for the post and it lost half the post

My syntax is off, but Try

create an expression slider for how often it occurs (I’ll call it FXTime)
maybe create a second slider for frame offset (FXoffset) if you want to give control to them being able start on the first frame in a second or on a later frame (set boundaries from 0 to framerate-1)

Opacity
if math.floor[(current frame # + FXoffset) / (current framerate)*FXTime]= [(current frame # + FXoffset) / ((current framerate)*FXTime] then 100
else 0

Might want to put in functions to make FXoffset a whole number and/or having “(current framerate)*FXTime” always return a whole number. This should set the opacity to 100 for the single frame where “(current framerate)*FXTime” is a whole number which will happen every FXTime seconds.

Its not exactly elegant, but it should work.

[Sean Apple]

Thanks, Jeff. I’ll give it a try…