void Start()
{
if (terToolkit != null && doErodeTerrain)
{
//terToolkit.FastThermalErosion(20, 0.0f, 0.0f); //creates pits
//terToolkit.FastHydraulicErosion(100, 1.0f, 0.0f); //creates washouts
//terToolkit.FullHydraulicErosion(1, 10.0f, 1.0f, .3f, 2.0f);
terToolkit.SmoothTerrain(10, 1.0f);
}
}
public void InitRoad(CarPath path)
{
if (terToolkit != null && doFlattenAtStart)
{
terToolkit.Flatten();
}
if (terToolkit != null && doGenerateTerrain)
{
terToolkit.PerlinGenerator(1, 0.1f, 10, 0.5f);
//terToolkit.NormaliseTerrain(0.0f, 0.001f, 0.5f);
}
GameObject go = GameObject.Instantiate(roadPrefabMesh);
MeshFilter mf = go.GetComponent <MeshFilter>();
Mesh mesh = new Mesh();
mf.mesh = mesh;
go.tag = "road_mesh";
int numQuads = path.nodes.Count - 1;
int numVerts = (numQuads + 1) * 2;
int numTris = numQuads * 2;
Vector3[] vertices = new Vector3[numVerts];
int numTriIndecies = numTris * 3;
int[] tri = new int[numTriIndecies];
int numNormals = numVerts;
Vector3[] normals = new Vector3[numNormals];
int numUvs = numVerts;
Vector2[] uv = new Vector2[numUvs];
for (int iN = 0; iN < numNormals; iN++)
{
normals[iN] = Vector3.up;
}
int iNode = 0;
Vector3 posA = Vector3.zero;
Vector3 posB = Vector3.zero;
Vector3 vLength = Vector3.one;
Vector3 vWidth = Vector3.one;
for (int iVert = 0; iVert < numVerts; iVert += 2)
{
if (iNode + 1 < path.nodes.Count)
{
PathNode nodeA = path.nodes[iNode];
PathNode nodeB = path.nodes[iNode + 1];
posA = nodeA.pos;
posB = nodeB.pos;
vLength = posB - posA;
vWidth = Vector3.Cross(vLength, Vector3.up);
if (terToolkit != null && doFlattenArroundRoad && (iVert % 10) == 0)
{
terToolkit.FlattenArround(posA + vWidth.normalized * roadOffsetW, 10.0f, 30.0f);
}
if (doLiftRoadToTerrain)
{
posA.y = terrain.SampleHeight(posA) + 1.0f;
}
posA.y += roadHeightOffset;
}
else
{
PathNode nodeA = path.nodes[iNode];
posA = nodeA.pos;
posA.y += roadHeightOffset;
}
Vector3 leftPos = posA + vWidth.normalized * roadWidth + vWidth.normalized * roadOffsetW;
Vector3 rightPos = posA - vWidth.normalized * roadWidth + vWidth.normalized * roadOffsetW;
vertices[iVert] = leftPos;
vertices[iVert + 1] = rightPos;
uv[iVert] = new Vector2(0.2f * iNode, 0.0f);
uv[iVert + 1] = new Vector2(0.2f * iNode, 1.0f);
iNode++;
}
int iVertOffset = 0;
int iTriOffset = 0;
for (int iQuad = 0; iQuad < numQuads; iQuad++)
{
tri[0 + iTriOffset] = 0 + iVertOffset;
tri[1 + iTriOffset] = 2 + iVertOffset;
tri[2 + iTriOffset] = 1 + iVertOffset;
tri[3 + iTriOffset] = 2 + iVertOffset;
tri[4 + iTriOffset] = 3 + iVertOffset;
tri[5 + iTriOffset] = 1 + iVertOffset;
iVertOffset += 2;
iTriOffset += 6;
}
mesh.vertices = vertices;
mesh.triangles = tri;
mesh.normals = normals;
mesh.uv = uv;
mesh.RecalculateBounds();
if (terToolkit != null && doErodeTerrain)
{
//terToolkit.FastThermalErosion(20, 0.0f, 0.0f); //creates pits
//terToolkit.FastHydraulicErosion(100, 1.0f, 0.0f); //creates washouts
//terToolkit.FullHydraulicErosion(1, 10.0f, 1.0f, .3f, 2.0f);
terToolkit.SmoothTerrain(10, 1.0f);
if (doFlattenArroundRoad)
{
foreach (PathNode n in path.nodes)
{
terToolkit.FlattenArround(n.pos, 8.0f, 10.0f);
}
}
float[] slopeStops = new float[2];
float[] heightStops = new float[2];
slopeStops[0] = 1.0f;
slopeStops[1] = 2.0f;
heightStops[0] = 4.0f;
heightStops[1] = 10.0f;
//terToolkit.TextureTerrain(slopeStops, heightStops, textures);
}
}
