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Xpression to “wiggle” a value around its timeline animation
I’m using the Noise node, but how to I hook it up to be a “relative” value, rather than absolute? So my object still follows its timeline animation but with an added degree of randomness… know what I mean?
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10 Replies
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For the intensity of a light? Any ideas on how to do that off the top of your head? I feel like I’ve done something similar in the past but I’m curious as to your thoughts
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From your original post I assumed an object moving along a path and you wanted it to not be so static.
“So my object still follows its timeline animation but with an added degree of randomness”
Guess I read too much into it.
I think using noise in Xpresso is probably the best. So you have a light that animates, but you want to add a little flicker to it?
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Tim Shetz
c4dtraining.com -
yes, precisely
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Actually you know what I just figured it out
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Wait… no I didn’t :\
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here’s an xpresso that does what a Vibrate tag does (for position in this case) and the same math (more or less) to ‘vibrate’ the intensity of a light. Volumetric so it’s easier to see…
8382_vibratekeyframedanim.c4d.zip
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Thanks Brian!
I was fiddling around and was sort of getting to what you have there, but hadn’t gotten to the clamp quite yet.
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Tim Shetz
c4dtraining.com -
as long as you want to limit the light to standard values of course… take it out to leave the possibility of negative values or values over 100% and associated ‘bloom’ etc. No problem.
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Very nice! The clamp is what I was missing actually. I also didn’t realize the intensity values were a range from 0-1, good to know!
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