public static MeshSplitter Split(agx.Vec3Vector vertices, agx.UInt32Vector indices, Func <agx.Vec3, Vector3> transformer, int maxNumVertices = Int16.MaxValue)
{
var splitter = new MeshSplitter();
splitter.m_vertices = new List <Vector3>(vertices.Count);
for (int i = 0; i < vertices.Count; ++i)
{
splitter.m_vertices.Add(transformer(vertices[i]));
}
for (int i = 0; i < indices.Count; i += 3)
{
if (i == 0 || splitter.m_subMeshData.Last().NumVertices >= maxNumVertices)
{
splitter.m_subMeshData.Add(new SubMeshData(maxNumVertices));
}
splitter.m_subMeshData.Last().Add(splitter.m_vertices[Convert.ToInt32(indices[i + 0])],
splitter.m_vertices[Convert.ToInt32(indices[i + 2])],
splitter.m_vertices[Convert.ToInt32(indices[i + 1])]);
}
foreach (var data in splitter.m_subMeshData)
{
data.CreateMesh();
}
return(splitter);
}
public static MeshSplitter Split(agx.Vec3Vector vertices,
agx.UInt32Vector indices,
agx.Vec2Vector uvs,
Func <agx.Vec3, Vector3> vertexTransformer,
int maxNumVertices = Int16.MaxValue)
{
var splitter = new MeshSplitter();
if (vertices.Count < maxNumVertices)
{
splitter.m_subMeshData.Add(new SubMeshData(uvs != null, vertices.Count));
splitter.m_subMeshData.Last().CreateMesh(vertices, indices, uvs, vertexTransformer);
return(splitter);
}
// This works but isn't correct. It's not possible to recover
// the triangles list for a mesh with #vertices < MaxValue.
splitter.m_vertices = new List <Vector3>(vertices.Count);
for (int i = 0; i < vertices.Count; ++i)
{
splitter.m_vertices.Add(vertexTransformer(vertices[i]));
}
var hasUvs = uvs != null && uvs.Count == vertices.Count;
for (int i = 0; i < indices.Count; i += 3)
{
if (i == 0 || splitter.m_subMeshData.Last().NumVertices >= maxNumVertices)
{
splitter.m_subMeshData.Add(new SubMeshData(hasUvs,
maxNumVertices));
}
if (hasUvs)
{
splitter.m_subMeshData.Last().Add(splitter.m_vertices[Convert.ToInt32(indices[i + 0])],
splitter.m_vertices[Convert.ToInt32(indices[i + 2])],
splitter.m_vertices[Convert.ToInt32(indices[i + 1])],
uvs[Convert.ToInt32(indices[i + 0])].ToVector2(),
uvs[Convert.ToInt32(indices[i + 2])].ToVector2(),
uvs[Convert.ToInt32(indices[i + 1])].ToVector2());
}
else
{
splitter.m_subMeshData.Last().Add(splitter.m_vertices[Convert.ToInt32(indices[i + 0])],
splitter.m_vertices[Convert.ToInt32(indices[i + 2])],
splitter.m_vertices[Convert.ToInt32(indices[i + 1])]);
}
}
foreach (var data in splitter.m_subMeshData)
{
data.CreateMesh();
}
return(splitter);
}
