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Add support for exporting meshes from the CLI (#5)

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* Add support for exporting meshes from the CLI

* Add the Mesh ClassIDType to CLIOptions' supportedAssetTypes
This commit is contained in:
Pierce Thompson
2023-06-23 08:37:40 -04:00
committed by GitHub
parent bb9ea7d86b
commit 5695afae7b
4 changed files with 108 additions and 4 deletions
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99
AssetStudioCLI/Exporter.cs
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@ -270,6 +270,103 @@ namespace AssetStudioCLI
return false;
}
private static bool ExportMesh(AssetItem item, string exportPath)
{
var m_Mesh = (Mesh)item.Asset;
if (m_Mesh.m_VertexCount <= 0)
return false;
if (!TryExportFile(exportPath, item, ".obj", out var exportFullPath))
return false;
var sb = new StringBuilder();
sb.AppendLine("g " + m_Mesh.m_Name);
#region Vertices
if (m_Mesh.m_Vertices == null || m_Mesh.m_Vertices.Length == 0)
{
return false;
}
int c = 3;
if (m_Mesh.m_Vertices.Length == m_Mesh.m_VertexCount * 4)
{
c = 4;
}
for (int v = 0; v < m_Mesh.m_VertexCount; v++)
{
sb.Append($"v {-m_Mesh.m_Vertices[v * c]} {m_Mesh.m_Vertices[v * c + 1]} {m_Mesh.m_Vertices[v * c + 2]}\r\n");
}
#endregion
#region UV
if (m_Mesh.m_UV0?.Length > 0)
{
c = 4;
if (m_Mesh.m_UV0.Length == m_Mesh.m_VertexCount * 2)
{
c = 2;
}
else if (m_Mesh.m_UV0.Length == m_Mesh.m_VertexCount * 3)
{
c = 3;
}
for (int v = 0; v < m_Mesh.m_VertexCount; v++)
{
sb.AppendFormat("vt {0} {1}\r\n", m_Mesh.m_UV0[v * c], m_Mesh.m_UV0[v * c + 1]);
}
}
#endregion
#region Normals
if (m_Mesh.m_Normals?.Length > 0)
{
if (m_Mesh.m_Normals.Length == m_Mesh.m_VertexCount * 3)
{
c = 3;
}
else if (m_Mesh.m_Normals.Length == m_Mesh.m_VertexCount * 4)
{
c = 4;
}
for (int v = 0; v < m_Mesh.m_VertexCount; v++)
{
sb.AppendFormat("vn {0} {1} {2}\r\n", -m_Mesh.m_Normals[v * c], m_Mesh.m_Normals[v * c + 1], m_Mesh.m_Normals[v * c + 2]);
}
}
#endregion
#region Face
int sum = 0;
for (var i = 0; i < m_Mesh.m_SubMeshes.Length; i++)
{
sb.AppendLine($"g {m_Mesh.m_Name}_{i}");
int indexCount = (int)m_Mesh.m_SubMeshes[i].indexCount;
var end = sum + indexCount / 3;
for (int f = sum; f < end; f++)
{
sb.AppendFormat("f {0}/{0}/{0} {1}/{1}/{1} {2}/{2}/{2}\r\n", m_Mesh.m_Indices[f * 3 + 2] + 1, m_Mesh.m_Indices[f * 3 + 1] + 1, m_Mesh.m_Indices[f * 3] + 1);
}
sum = end;
}
#endregion
sb.Replace("NaN", "0");
File.WriteAllText(exportFullPath, sb.ToString());
Logger.Debug($"{item.TypeString}: \"{item.Text}\" exported to \"{exportFullPath}\"");
return true;
}
public static bool ExportConvertFile(AssetItem item, string exportPath, CLIOptions options)
{
switch (item.Type)
@ -292,6 +389,8 @@ namespace AssetStudioCLI
return ExportFont(item, exportPath);
case ClassIDType.Sprite:
return ExportSprite(item, exportPath, options);
case ClassIDType.Mesh:
return ExportMesh(item, exportPath);
default:
return ExportRawFile(item, exportPath);
}