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In the docs for the procedural texture filter there are lines like this:

mapcui(T v, T edge0, T edge1)

perlin(S x, I octaves, S persistence)

What do the S and T and V's mean. I'm guessing V is for vector. What are the others?

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Hi Belmont,

The below info should answer your questions,

T = Type: so can be either a Scalar or Vector (but not integer).
V = vector (non-scalar, 2 to 6 components)
S = scalar (non-vector)
I = single integer (not scalar, or fractional) - internally, the input could be fractional, but the value will be rounded/truncated to an integer

Where functions take T or V arguments - the vector size must be the same for all arguments, they are not interchangeable.


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