public MeshExporter(USkeletalMesh originalMesh, ELodFormat lodFormat = ELodFormat.FirstLod, bool exportMaterials = true)
{
_meshName = originalMesh.Owner?.Name ?? originalMesh.Name;
if (!originalMesh.TryConvert(out var convertedMesh) || convertedMesh.LODs.Length <= 0)
{
Log.Logger.Warning($"Mesh '{_meshName}' has no LODs");
_meshLods = new Mesh[0];
return;
}
_meshLods = new Mesh[lodFormat == ELodFormat.AllLods ? convertedMesh.LODs.Length : 1];
for (var i = 0; i < _meshLods.Length; i++)
{
if (convertedMesh.LODs[i].Sections.Value.Length <= 0 || convertedMesh.LODs[i].Indices.Value == null)
{
Log.Logger.Warning($"LOD {i} in mesh '{_meshName}' has no section");
continue;
}
var usePskx = convertedMesh.LODs[i].NumVerts > 65536;
using var writer = new FCustomArchiveWriter();
var materialExports = exportMaterials ? new List <MaterialExporter>() : null;
ExportSkeletalMeshLod(convertedMesh.LODs[i], convertedMesh.RefSkeleton, writer, materialExports);
_meshLods[i] = new Mesh($"{_meshName}_LOD{i}.psk{(usePskx ? 'x' : "")}", writer.GetBuffer(), materialExports ?? new List <MaterialExporter>());
}
}
public MeshExporter(UStaticMesh originalMesh, ELodFormat lodFormat = ELodFormat.FirstLod, bool exportMaterials = true, EMeshFormat meshFormat = EMeshFormat.ActorX, ETexturePlatform platform = ETexturePlatform.DesktopMobile)
{
MeshLods = new List <Mesh>();
MeshName = originalMesh.Owner?.Name ?? originalMesh.Name;
if (!originalMesh.TryConvert(out var convertedMesh) || convertedMesh.LODs.Count == 0)
{
Log.Logger.Warning($"Mesh '{MeshName}' has no LODs");
return;
}
var i = 0;
foreach (var lod in convertedMesh.LODs)
{
if (lod.SkipLod)
{
Log.Logger.Warning($"LOD {i} in mesh '{MeshName}' should be skipped");
continue;
}
using var Ar = new FArchiveWriter();
var materialExports = exportMaterials ? new List <MaterialExporter>() : null;
string ext;
switch (meshFormat)
{
case EMeshFormat.ActorX:
ext = "pskx";
ExportStaticMeshLods(lod, Ar, materialExports);
break;
case EMeshFormat.Gltf2:
ext = "glb";
new Gltf(MeshName.SubstringAfterLast("/"), lod, materialExports).Save(meshFormat, Ar);
break;
case EMeshFormat.OBJ:
ext = "obj";
new Gltf(MeshName.SubstringAfterLast("/"), lod, materialExports).Save(meshFormat, Ar);
break;
default:
throw new ArgumentOutOfRangeException(nameof(meshFormat), meshFormat, null);
}
MeshLods.Add(new Mesh($"{MeshName}_LOD{i}.{ext}", Ar.GetBuffer(), materialExports ?? new List <MaterialExporter>()));
if (lodFormat == ELodFormat.FirstLod)
{
break;
}
i++;
}
}
