block transition with Fractal Noise
by randyman
on
May 1, 2007 at 6:44:00 pm
I'm trying to create a transition that reveals lower thirds with a square pixeled wipe effect.
I'm thinking building a random grid of pixels with fractal noise (which I have) but am not clear on how to make the pixels travel from a total black screen to a wipe from left to right of randomly generated white pixels ending in solid white.
Basically block dissolve with settings of:
Width 8.0
Height 8.0
Feather off
Except moving left to right. Any Ideas?
Re: block transition with Fractal Noise by randyman on May 1, 2007 at 9:16:00 pm
I was hoping someone could suggest a way to have a gradient control the fractal noise. I thought of that (as well as the block dissolve transition with a controlling gradient).
I'm trying to get that "digital" feel you get with the block dissolve rather than have the squares flip. Unless I'm missing something in card wipe.
Look at Wiping fractals 2.
Basically, I've used an adjustment layer set to Hard Light with a moving ramp. Placed that over the layer with the fractal noise. To finish things of, I added an adjustment layer with a threshold on it, to have the blocks switch on instead of fading in.
Wiping fractals 1 is something I made because I hadn't read your post properly the first time. I left it in 'cause I think it makes for an interesting effect none the less.
Re: block transition with Fractal Noise by randyman on May 1, 2007 at 10:50:14 pm
YAE! That's it. I'm going to tweak the block size a bit but that's the effect I was trying to get. There used to be a transition in an old Grass Valley switcher called digitrail (now I just spilled the beans, I'm old - and the youngsters are saying "what's a grass valley switcher") that I used for this.
I knew AE could do it I just hadn't been able to figure out the combination. You can also do something like this in Photoshop but it was so long ago I did it I couldn't put it together there either. Anyone know that trick? Just curious.
