public TerrainChunk(TerraTerrain terrain, TerrainChunk parent, Vector3 start, Vector3 right, Vector3 forward, int resolution, int layer)
{
this.parent = parent;
this.start = start;
this.right = right;
this.forward = forward;
this.resolution = resolution;
this.layer = layer;
go = new GameObject("TerrainChunkLOD" + layer);
meshFilter = go.AddComponent <MeshFilter>();
meshRenderer = go.AddComponent <MeshRenderer>();
if (parent == null)
{
go.transform.parent = terrain.transform;
}
else
{
go.transform.parent = parent.go.transform;
}
mesh = new Mesh();
meshFilter.mesh = mesh;
}
public void Generate(TerraTerrain terrain)
{
if (mesh != null)
{
mesh.Clear();
}
meshRenderer.material = terrain.Material;
Vector3[] vertices = new Vector3[(resolution + 1) * (resolution + 1)];
Vector3[] normals = new Vector3[vertices.Length];
Vector2[] uvs = new Vector2[vertices.Length];
int[] triangles = new int[resolution * resolution * 6];
for (int z = 0, index = 0; z <= resolution; z++)
{
for (int x = 0; x <= resolution; x++, index++)
{
terrain.Graph.CurrentVertex = 2 * start + (2 * x * (right / resolution)) + (2 * z * (forward / resolution));
terrain.Graph.CurrentUV = new Vector2((float)x / resolution, (float)z / resolution);
vertices[index] = (Vector3)terrain.Graph.OutNode.GetValue(null);
normals[index] = Vector3.up;
uvs[index] = terrain.Graph.CurrentUV;
}
}
for (int ti = 0, vi = 0, y = 0; y < resolution; y++, vi++)
{
for (int x = 0; x < resolution; x++, ti += 6, vi++)
{
triangles[ti] = vi;
triangles[ti + 3] = triangles[ti + 2] = vi + 1;
triangles[ti + 4] = triangles[ti + 1] = vi + resolution + 1;
triangles[ti + 5] = vi + resolution + 2;
}
}
mesh.vertices = vertices;
mesh.normals = normals;
mesh.uv = uvs;
mesh.triangles = triangles;
mesh.RecalculateNormals();
go.transform.localScale = Vector3.one;
}