private static List <StaticObjectSubmesh> CreateSubmeshes(List <Vector3> vertices, List <ColorRGBA4B> vertexColors, List <StaticObjectFace> faces)
{
bool hasVertexColors = vertexColors.Count != 0;
Dictionary <string, List <StaticObjectFace> > submeshMap = CreateSubmeshMap(faces);
List <StaticObjectSubmesh> submeshes = new List <StaticObjectSubmesh>();
foreach (KeyValuePair <string, List <StaticObjectFace> > mappedSubmesh in submeshMap)
{
//Collect all indices and build UV map
List <uint> indices = new List <uint>(mappedSubmesh.Value.Count * 3);
Dictionary <uint, Vector2> uvMap = new Dictionary <uint, Vector2>(mappedSubmesh.Value.Count * 3);
foreach (StaticObjectFace face in mappedSubmesh.Value)
{
for (int i = 0; i < 3; i++)
{
uint index = face.Indices[i];
indices.Add(index);
if (!uvMap.ContainsKey(index))
{
uvMap.Add(index, face.UVs[i]);
}
}
}
//Get Vertex range from indices
uint minVertex = indices.Min();
uint maxVertex = indices.Max();
//Build vertex list
uint vertexCount = maxVertex - minVertex;
List <StaticObjectVertex> submeshVertices = new List <StaticObjectVertex>((int)vertexCount);
for (uint i = minVertex; i < maxVertex + 1; i++)
{
Vector2 uv = uvMap[i];
ColorRGBA4B color = hasVertexColors ? vertexColors[(int)i] : null;
submeshVertices.Add(new StaticObjectVertex(vertices[(int)i], uv, color));
}
//Normalize indices
for (int i = 0; i < indices.Count; i++)
{
indices[i] -= minVertex;
}
submeshes.Add(new StaticObjectSubmesh(mappedSubmesh.Key, submeshVertices, indices));
}
return(submeshes);
}
public StaticObjectVertex(Vector3 position, Vector2 uv, ColorRGBA4B color) : this(position, uv)
{
this.Color = color;
}
