public Vector3 GetTerrainPosition(Vector3 position)
{
var time = Time.time;
var y = terrainSettings.Amplitude * MathfExt.PerlinNoiseHarmonic(position.x * terrainSettings.Scale, position.z * terrainSettings.Scale, time, 5);
position.y = y;
return(position);
}
public bool Execute()
{
float step = rect.width / (resolution - 1);
var vc = 0;
for (int index = startIndex; index < endIndex; index++)
{
int i = index / resolution;
int j = index % resolution;
{
var x = i * step;
var z = j * step;
var y = amplitude * MathfExt.PerlinNoiseHarmonic(x * scale, z * scale, time, Harmonics);
vertices[vc++] = new Vector3()
{
x = x, y = y, z = z
};
}
}
return(true);
}
public void Execute(int index)
{
float step = rect.width / (resolution - 1);
var tc = 0;
var vc = 0;
//for (int i = 0; i < resolution; i++)
int i = index / resolution;
{
var ishift = i * resolution;
//for (int j = 0; j < resolution; j++)
int j = index % resolution;
{
var x = i * step;
var z = j * step;
var y = amplitude * MathfExt.PerlinNoiseHarmonic(x * scale, z * scale, time, Harmonics);
vertices[ishift + j] = new Vector3()
{
x = x, y = y, z = z
};
}
}
}
public Mesh GenerateMesh(Mesh mesh, int resolution)
{
float step = terrainSettings.Rect.width / (resolution - 1);
int vertexCount = (resolution + 1) * (resolution + 1);
bool rebuildMesh = false;
int[] triangles = null;
if (mesh.vertexCount != vertexCount)
{
mesh.Clear();
Debug.Log($"Mesh vertexCount:{mesh.vertexCount} vertices.Count:{mesh.vertices.Length} vertexCountNew: {vertexCount}");
mesh.vertices = new Vector3[vertexCount];
mesh.triangles = new int[resolution * resolution * 6];
triangles = mesh.triangles;
rebuildMesh = true;
}
var vertices = mesh.vertices;
var tc = 0;
var vc = 0;
var time = Time.time;
for (int i = 0; i < resolution; i++)
{
var ishift = i * resolution;
var ishiftLast = (i - 1) * resolution;
for (int j = 0; j < resolution; j++)
{
var x = i * step;
var z = j * step;
var y = terrainSettings.Amplitude * MathfExt.PerlinNoiseHarmonic(x * terrainSettings.Scale, z * terrainSettings.Scale, time, terrainSettings.Harmonics);
vertices[ishift + j] = new Vector3()
{
x = x, y = y, z = z
};
if (i > 0 && j > 0 && triangles != null)
{
triangles[tc++] = ishiftLast + j - 1;
triangles[tc++] = ishiftLast + j;
triangles[tc++] = ishift + j;
triangles[tc++] = ishiftLast + j - 1;
triangles[tc++] = ishift + j;
triangles[tc++] = ishift + j - 1;
}
}
}
mesh.vertices = vertices;
if (triangles != null)
{
mesh.triangles = triangles;
}
mesh.RecalculateNormals();
if (rebuildMesh)
{
mesh.RecalculateBounds();
}
return(mesh);
}
