public void PipeData(ComputeShader compute, CraterData craters)
{
compute.SetFloat("craterEffect", craters.craterEffect);
compute.SetFloat("craterPoint", craters.craterPoint);
compute.SetFloat("warpAmt", craters.warpAmount);
compute.SetVector("craterComp", craters.comp);
compute.SetFloat("craterMin", craters.craterMin);
compute.SetFloat("craterMax", craters.craterMax);
compute.SetFloat("craterLip", craters.craterLip);
PipeData(compute, craters.noise);
}
public static JsonArray Pack(CraterData c)
{
JsonArray a = new JsonArray(c.craterEffect,
c.craterPoint,
c.warpAmount);
a.AddAll(Pack(c.noise));
a.AddAll(Pack(c.comp));
a.Add(c.craterMin);
a.Add(c.craterMax);
a.Add(c.craterLip);
return(a);
}
public static Mesh generateCraters(Mesh meshData, int craterDensity, float rimWidth, float rimHeight, float rimSteepness, float maxRadius)
{
Vector3[] vertices = meshData.vertices;
CraterData[] craterDatas = new CraterData[craterDensity];
// for each crater, creates and stores a centerpoint and a radius
for (int i = 0; i < craterDensity; i++)
{
craterDatas[i] = new CraterData(
meshData.vertices[Random.Range(0, meshData.vertices.Length)],
Random.Range(1, maxRadius)
);
}
for (int i = 0; i < meshData.vertices.Length; i++)
{
float craterHeight = 0;
for (int c = 0; c < craterDensity; c++)
{
// get an x coordinate between -1 and 1
float x = Vector3.Distance(meshData.vertices[i], craterDatas[c].center) / craterDatas[c].radius;
//three functions that gives a rough crater shape
float crater = x * x - 1;
float rim = Mathf.Min(x - 1 - rimWidth, 0);
float rimFinal = rim * rim * rimSteepness;
//combine the functions
float craterValue = Mathf.Max(crater, rimHeight);
craterValue = Mathf.Min(craterValue, rimFinal);
craterHeight += craterValue * craterDatas[c].radius;
}
vertices[i] += meshData.normals[i] * craterHeight;
}
meshData.vertices = vertices;
meshData.RecalculateNormals();
return(meshData);
}
