com and sign up for an After Effects training course and I’ll see you on the next tutorial, I guess I should blow out this candle. To learn more tips and tricks like these log onto Genius DV. This candle is a great example of how you can use the wiggle expression in After Effects. Once again I’ll trim the comp area and alt click the stopwatch. Again the amount you will need to flavor to taste. Looks interesting, but now lets try something with the position property. Here lets apply a wiggle to scale of 30 and 30 and lets just see what we get. This wiggle expression can be added to any parameter that is keyframable. As you can see this adds very small fluctuation but at a high rate. Now lets try 100 for the frequency and 40 for the amount. As you can see, it is a very slow animation with great variation. The 25 represents how many times per second and the 75 represents how much the intensity of the light will fluctuate. You must type this exact or the expression will not work. Code: wiggle (5,100) The '5' represents the times per second the layer flickers, the '100' is the maximum value (transparency at 100).
Now navigate to the expression line and type wiggle then open bracket and lets start with a value of 25 then add a comma and lets try 75 for our amount and then add a close bracket. You could either use the first expression here or try the 'wiggle' expression with the transparency channel. To add an expression just simple alt or option click on the stopwatch in front of the parameters name, this will enable expressions for the associated property.
I wanted to add fluctuation to the light intensity so it would appear the light was flickering. I have created this simple 3-D composition and added a light. I am going to introduce you to the wiggle expression. Today we are going to take a brief look at expressions. Hello everyone and welcome to Genius DV After Effects tutorial.
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