Annoyingly TD doesn't play the audio from a movie file by default! What you must create is an AUDIO MOVIE CHOP. Drag the MOVIE FILE IN node onto this & connect and Audio Device Out & you'll get the movie audio!
To access frames in a video that have gone by, use a cache & cache select TOP. Eg. you want to blend "2 frames ago" with the current frame on your video. To your movie-file-in, attach a cache TOP. Next create a cache select TOP and specify the name of the cache TOP. Now in the parameter of the cache select type -2. blam!
Make an LFO CHOP. Set it to pulse. Choose a frequency. Connect a COUNT CHOP to it. For this example, set it to Loop Min/Max. And set the Max to something like 9999. Make a NOISE CHOP. Drag the Count CHOP's value into the Seed parameter. You might have to add [0] at the end of the op('noise1')[0] so that the value is actually read. Also set the amplitude and offset to 0.5, so the noise is going from 0 to 1. Connect a MATH CHOP to the noise. In the OP tab, set the integer to Round (so we get whole numbers) and also set the To Range to the numbers you'd like your random values to fall between. You now have random numbers being pulsed.
Use something like Simplex 3D (GPU) noise. Set the period to something quite low, so you get lots of noisiness. Animate the transform Z with absTime.seconds. Plug it into a FUNCTION node In the Function RGB, select Input ^ Exponent Increase Exponent The lower values should now just be black & the higher values now pinging. Use a Level node to tame the opacity & composite it on top of something
Comments
Post a Comment