//-------------------------------------------------------------------------
// end: GPU compute / grid samples
// CPU
//-------------------------------------------------------------------------
public static float Get(float v, int seed = 0)
{
// return frac(sin(mod(s, 6.2831853)) * 43758.5453123);
float s = NoiseCommon.JumbleSeed(seed);
float r = Mathf.Sin(Mathf.Repeat(s + v, 6.2831853f)) * 43758.5453123f;
r = (r >= 0.0f) ? r : -r;
r -= Mathf.Floor(r);
return(r);
}
public static float Get(Vector2 v, int seed = 0)
{
// float d = dot(s + 0.1234567, float2(1111112.9819837, 78.237173));
float s = NoiseCommon.JumbleSeed(seed);
float d =
(s + v.x + 0.1234567f) * 1111112.9819837f
+ (s + v.y + 0.1234567f) * 78.237173f;
// return frac(sin(m) * 43758.5453123);
float r = Mathf.Sin(d) * 43758.5453123f;
r = (r >= 0.0f) ? r : -r;
r -= Mathf.Floor(r);
return(r);
}