I have created a (frighteningly realistic) swim cycle for an object, and then added a path. The object follows the path using a constraint: as it swims along the path, the tail flaps.

I then added noise to the object's Z position. (I 'animated' the armature's location on one cell, then added an F curve modifier with noice to add some change to the armature's Z location.)

I would like to tie the rise in the Z position to be tied to a downward tail stroke, but to have some randomness in it... and I would like to end up with a keyframable value, so I can increase/decrease tail speed with a corresponding increase in the Z position change -- albeit with some noise making it not completely linear or predictable.

I have gone this route so that it looks less mechanistic... which is to say there may be a better way to do it overall... but the goal it so have an appearance of something swimming perhaps in a current... and not to have a clock-like precision in speed/location of tail.

Fish tails go side to side, I know... so say this is a porpoise... Anyway, the goal is to get an animatable value that drives both things -- flap speed and Z location change -- in a not-completely-predictable way.

enter image description here


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.