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  • Published 10 Nov 2023

Change the seed on Turbulence force

For more dynamic simulations it would be benificial to have a seed or W value in the turbulence force this would be highly benificial for cloth simulations and particle simulations. Now you can only rotate the turbulence but that only rotates the field it doesnt bring dynamic change.

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Development Status: Open

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notimportantstudio
10 Nov 2023

5 Comments

notimportantstudio Author

I found a old article about this exact same problem in blender, it was 13 years ago. The turbulance uses a 3D noise field so it cant be animated in a normal way. It needs to change to a 4D noise field.

artturi85

I know these are not perfect solutions, but you can also change the location of the force field. Now if you have multiple force fields with different seeds that all are changing their location with animation noise modifier, it could create quite dynamic looking effect.

notimportantstudio Author

But makes it more unpredictable and heavy. Just as easily it could be a 4D noise that has a animatable noise factor!

artturi85

You already can change the seed of turbulence from the physics properties. Or did you mean something else?

thomas.albos

He means an evolution factor, like the W factor on the noise texture. Right now the turbulence force field is only static noise which makes it really hard to create organic cloth and particle sims. In Houdini this option is called "pulse length", its the speed at which the noise evolves.

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