LYGIA Shader Library

superShapeSDF (lygia/sdf/superShapeSDF)

It returns a supershape, which is a mathematical function for modelling natural forms develop by Paul Bourke and Johan Gielis. Some notes about the parameters:

* `m` determines number of sides/branches
* `m = 0` yields a circle
* `a!=b` results in an asymmetrical shape
* `n1=n2=n3<1` the shape is "pinched"
* `n1>n2,n3` the shape is "bloated"
* `n1!=n2!=n3` the shape is asymmetrical
* `n1=n2=n3=1` the shape is a square
* `n1=n2=n3=2` the shape is a star

For more information about the supershape, check this article by Algosome.

<float> supershapeSDF(<vec2> st, <vec2> center, <float> size s, <float> a, <float> b, <float> n1, <float> n2, <float> n3, <float> m)

<float> supershapeSDF(<vec2> st, <float> size s, <float> a, <float> b, <float> n1, <float> n2, <float> n3, <float> m)

<float> supershapeSDF(<float2> st, <float> size s, <float> a, <float> b, <float> n1, <float> n2, <float> n3, <float> m)

<float> supershapeSDF(<float2> st, <float2> center, <float> size s, <float> a, <float> b, <float> n1, <float> n2, <float> n3, <float> m)

<float> supershapeSDF(<float2> st, <float> size s, <float> a, <float> b, <float> n1, <float> n2, <float> n3, <float> m)

Examples

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