public const float MaximumHeight = 350; /* heighest point in Netherlands */
public static Mesh CreateMesh(Stream pStream, String pName)
{
try
{
var decoder = new QuantizedMeshFormatDecoder(pStream, false);
Vector3[] terrainVertices = new Vector3[decoder.VertexList.Length];
for (int index = 0; index < terrainVertices.Length; index++)
{
float heightInMeter = decoder.GetHeightInMeter(index);
float normalizedHeight = Mathf.InverseLerp(MinimumHeight, MaximumHeight, heightInMeter);
terrainVertices[index] = new Vector3(
(float)QuantizedMeshFormatDecoder.Normalize(decoder.VertexList[index].u),
normalizedHeight,
(float)QuantizedMeshFormatDecoder.Normalize(decoder.VertexList[index].v));
}
int[] terrainTriangles = new int[decoder.TriangleIndices.Length];
for (int index = 0; index < terrainTriangles.Length / 3; index++)
{
// Inverse traingle direction (frontface / backface)
int offset = (index * 3);
terrainTriangles[offset + 0] = (int)decoder.TriangleIndices[offset + 0];
terrainTriangles[offset + 1] = (int)decoder.TriangleIndices[offset + 2];
terrainTriangles[offset + 2] = (int)decoder.TriangleIndices[offset + 1];
}
Vector2[] terrainUV = new Vector2[decoder.VertexList.Length];
for (int index = 0; index < terrainVertices.Length; index++)
{
terrainUV[index] = new Vector2(
(float)QuantizedMeshFormatDecoder.Normalize(decoder.VertexList[index].u),
(float)QuantizedMeshFormatDecoder.Normalize(decoder.VertexList[index].v));
}
// Replace quad mesh with own mesh
Mesh terreinMesh = new Mesh()
{
name = pName,
vertices = terrainVertices,
triangles = terrainTriangles,
uv = terrainUV
};
terreinMesh.RecalculateBounds();
terreinMesh.RecalculateNormals(); // Could also be extracted from terrain file; but this is easer
return(terreinMesh);
}
catch (Exception ex)
{
Mesh terreinMesh = CreateEmptyQuad(pName + "_corruptstream");
return(terreinMesh);
}
}
static void Main(string[] args)
{
//var decoder = new QuantizedMeshFormatDecoder(new System.IO.FileInfo(@"C:\\development\\quantized-mesh-decoder-master\\src\\assets\\tile-with-extensions.terrain", false));
var decoder = new QuantizedMeshFormatDecoder(new System.IO.FileInfo(@"C:\dem\DenHaag\output\14\8385\10979.terrain"), false);
}
