| Parameter | Description |
|---|---|
| pos | Input (x,y) coordinate. |
| rot | Angle to rotate the gradients. |
float3 The first component of the 3-element return vector is the noise value, and the second and third components are the x and y partial derivatives.
2-D non-tiling simplex noise with rotating gradients and analytical derivative.
| Parameter | Description |
|---|---|
| pos | Input (x,y) coordinate. |
float3 The first component of the 3-element return vector is the noise value, and the second and third components are the x and y partial derivatives.
2-D non-tiling simplex noise with fixed gradients and analytical derivative.