public static float GetHeight(Vector3 p, float radius, DisplacementLayer[] displace)
{
if (displace != null)
{
float maxHeight = 0f;
float addedHeight = 0f;
for (var i = 0; i < displace.Length; i++)
{
var d = displace[i];
var strength = 1f;
if (maxHeight > 0f)
{
strength = d.heightStrength.Evaluate(addedHeight / maxHeight);
}
if (d.noise == NOISE.Perlin)
{
addedHeight += d.height * Noise.Perlin(d.detail * p.x + d.seed, d.detail * p.y, d.detail * p.z) * strength;
}
else if (d.noise == NOISE.Worley)
{
addedHeight += d.height * Noise.Worley(d.detail * p.x + d.seed, d.detail * p.y, d.detail * p.z) * strength;
}
else if (d.noise == NOISE.FractalMapped)
{
addedHeight += d.height * Noise.FractalMapped(d.detail * p.x + d.seed, d.detail * p.y, d.detail * p.z) * strength;
}
else
{
var np = PTHelpers.GetHeightmapCoord(p);
addedHeight += d.height * d.texture.GetPixelBilinear(np.x, np.y).grayscale;
}
maxHeight += d.height;
}
return(radius + addedHeight);
}
return(radius);
}
