private static void MergeMeshes(SBMLoader loader, out Mesh result, out string[] materials)
{
if (loader.MeshCount == 0)
{
result = null;
materials = null;
return;
}
if (loader.MeshCount == 1)
{
loader.GetMesh(0, out result, out materials);
return;
}
List<string> finalmaterials = new List<string>();
MeshBuilder merged = new MeshBuilder();
merged.UseNormals = true;
merged.UseTangents = true;
merged.UseTexCoords = true;
int totalsubmeshes = 0;
for (int i = 0; i < loader.MeshCount; i++)
{
Mesh cmesh;
string[] curmats;
loader.GetMesh(i, out cmesh, out curmats);
totalsubmeshes += cmesh.Submeshes.Length;
int baseindex = merged.CurrentVertexCount;
merged.AddPositions(cmesh.Positions);
merged.AddNormals(cmesh.Normals);
merged.AddTextureCoords(cmesh.TextureCoordinates);
merged.AddTangents(cmesh.Tangents);
for (int j = 0; j < cmesh.Submeshes.Length; j++)
{
int submeshindex;
if (finalmaterials.Contains(curmats[j]))
submeshindex = finalmaterials.IndexOf(curmats[j]);
else
{
submeshindex = finalmaterials.Count;
finalmaterials.Add(curmats[j]);
}
merged.AddIndices(submeshindex, cmesh.Submeshes[j], (uint)baseindex);
}
}
Console.WriteLine("Merged {0} meshes with a total of {1} submeshes into 1 mesh with a total of {2} submeshes.", loader.MeshCount, totalsubmeshes, finalmaterials.Count);
result = merged.Build();
materials = finalmaterials.ToArray();
}
public static Mesh CombineMeshes(params Mesh[] meshes)
{
MeshBuilder builder = new MeshBuilder();
if (meshes[0].TextureCoordinates != null) builder.UseTexCoords = true;
if (meshes[0].Normals != null) builder.UseNormals = true;
uint indexpos = 0;
for (int i = 0; i < meshes.Length; i++)
{
var mesh = meshes[i];
if (builder.UseTexCoords) builder.AddTextureCoords(mesh.TextureCoordinates);
if (builder.UseNormals) builder.AddNormals(mesh.Normals);
for (int j = 0; j < mesh.Submeshes.Length; j++)
builder.AddIndices(j, mesh.Submeshes[j]);
builder.AddPositions(mesh.Positions);
indexpos += (uint)mesh.Positions.Length;
}
return builder.Build();
}
