/// <summary>Copies the contents of the generated mesh to a [UnityEngine.Mesh](https://docs.unity3d.com/ScriptReference/Mesh.html).</summary>
/// <param name="mesh">The mesh to copy the <see cref="Chisel.Core.GeneratedMeshContents"/> into</param>
/// <remarks><code>
/// MeshDescription meshDescription = ... ;
/// GeneratedMeshContents contents = tree.GetGeneratedMesh(meshDescription);
/// UnityEngine.Mesh unityMesh = new UnityEngine.Mesh();
/// contents.CopyTo(unityMesh);
/// </code>
/// See the [Create Unity Meshes](~/documentation/createUnityMesh.md) article for more information.
/// </remarks>
/// <exception cref="System.ArgumentNullException">Thrown when <paramref name="mesh"/> is null.</exception>
/// <exception cref="System.ArgumentException">Thrown when <paramref name="mesh"/> is invalid. This can happen when the mesh has already been destroyed.</exception>
public void CopyTo(UnityEngine.Mesh mesh)
{
if (object.ReferenceEquals(mesh, null))
{
throw new ArgumentNullException("mesh");
}
if (!mesh)
{
throw new ArgumentException("mesh", "mesh is not valid, it might have already been destroyed");
}
if (description.vertexCount < 3 ||
description.indexCount < 3)
{
mesh.Clear();
return;
}
mesh.SetVertices(positions);
if (normals.IsCreated)
{
mesh.SetNormals(normals);
}
if (tangents.IsCreated)
{
mesh.SetTangents(tangents);
}
if (uv0.IsCreated)
{
mesh.SetUVs(0, uv0);
}
mesh.SetTriangles(indices.ToArray(), 0, false);
mesh.bounds = bounds;
}
private void ApplyNormals()
{
var normals = GetNormals();
if (normals != null)
{
unityNormals.Clear();
for (int i = 0; i < normals.Length; ++i)
{
unityNormals.Add(normals[i]);
}
unityMesh.SetNormals(unityNormals);
}
}