Generate pseudo-random seed python

[barakooda]

After adding the module random to touch.

I`m trying to add noise inside point sop node.
I need random number that will repeat it self with the same input.
what “function” should be?

random.function(me.inputPoint.index)

is it the fastest way to add simple noise to points ?

[rob]

derivative.ca/wiki088/index. … le#Methods

tdu.rand(me.inputPoint.index)

should do the trick.

rand(seed) → float
Return a random value in the range [0.0, 1.0) given the input seed value. That is, it will never return 1.0, but it may return 0.0. For a given seed, it will always return the same random number. The seed does not need to be a number. If the seed is not numeric, it resolves it to its string representation to produce a unique value. In the case of OPs for example, its string representation is a constant path. Thus one can produce a unique random value for each OP which remains the same for that OP each time you reload TouchDesigner.
tdu.rand(me) # return a specific random number based on path
tdu.rand(5) # return a specific random number
tdu.rand(absTime.frame) # return a different number every frame