private void OnCalculateCoord1(Vector3 localPosition, Vector3 localCenter, ref Vector2 coord)
{
coord.x = Mathf.Atan2(localPosition.x, localPosition.z);
coord.y = Mathf.Asin(localPosition.y / localPosition.magnitude);
coord.x = 0.5f - coord.x / (Mathf.PI * 2.0f);
coord.y = 0.5f + coord.y / Mathf.PI;
coord = SgtHelper.CartesianToPolarUV(localPosition);
if (coord.x < 0.001f)
{
if (localCenter.x < 0.0f)
{
coord.x = 1.0f;
}
}
else if (coord.x > 0.999f)
{
if (localCenter.x > 0.0f)
{
coord.x = 0.0f;
}
}
}
private void OnCalculateHeight(Vector3 localPosition, ref float height)
{
if (Heightmap != null)
{
var uv = SgtHelper.CartesianToPolarUV(localPosition);
var color = SampleBilinear(uv);
height += (color.a - 0.5f) * Strength;
}
}
public override float GetHeight(Vector3 point)
{
if (HeightTex != null)
{
var uv = SgtHelper.CartesianToPolarUV(point);
return(Mathf.Lerp(InnerRadius, OuterRadius, GetHeightTexAlpha(uv)));
}
return(1.0f);
}
// This will return the local terrain height at the given local position
public float GetSurfaceHeightLocal(Vector3 localPosition)
{
if (HeightTex != null)
{
var uv = SgtHelper.CartesianToPolarUV(localPosition);
var height01 = GetHeightTexAlphaBilinear(uv);
return(Mathf.Lerp(InnerRadius, OuterRadius, height01));
}
return(1.0f);
}
private void CalculateHeight(SgtVector3D localPosition, ref float height)
{
if (Heightmap != null)
{
var uv = SgtHelper.CartesianToPolarUV((Vector3)localPosition);
var color = SampleBilinear(uv);
switch (Encoding)
{
case EncodingType.Alpha:
{
height += Mathf.Lerp(DisplacementMin, DisplacementMax, color.a);
}
break;
case EncodingType.RedGreen:
{
height += Mathf.Lerp(DisplacementMin, DisplacementMax, (color.r * 255.0f + color.g) / 256.0f);
}
break;
}
}
}
