public void GenerateMesh()
{
gameObject.AddComponent <MeshFilter>();
gameObject.AddComponent <MeshRenderer>();
var resource = DifResourceManager.getResource(Path.Combine(Application.streamingAssetsPath, filePath));
if (resource == null)
{
Debug.LogError("Dif decode failed");
return;
}
// create mesh!
Mesh mesh = new Mesh();
mesh.name = Path.GetFileNameWithoutExtension(filePath);
mesh.vertices = resource.vertices.Select(p => new Vector3(p.x, -p.y, p.z)).ToArray();
mesh.normals = resource.normals;
mesh.uv = resource.uvs;
mesh.tangents = resource.tangents;
mesh.subMeshCount = resource.triangleIndices.Length;
for (int i = 0; i < resource.triangleIndices.Length; i++)
{
mesh.SetTriangles(resource.triangleIndices[i], i);
}
Material[] materials = new Material[resource.materials.Length];
for (var index = 0; index < resource.materials.Length; index++)
{
var material = ResolveTexturePath(resource.materials[index]);
materials[index] = DefaultMaterial;
if (File.Exists(material))
{
byte[] fileData = File.ReadAllBytes(material);
var tex = new Texture2D(2, 2);
tex.LoadImage(fileData); // This will auto-resize the texture dimensions.
materials[index] = Instantiate(DefaultMaterial);
materials[index].mainTexture = tex;
}
}
mesh.Optimize();
GetComponent <MeshFilter>().mesh = mesh;
if (GetComponent <MeshCollider>())
{
GetComponent <MeshCollider>().sharedMesh = mesh;
}
if (GetComponent <MeshRenderer>())
{
GetComponent <MeshRenderer>().materials = materials;
}
}
public void CreateObj()
{
var fullDifPath = Path.Combine(Application.streamingAssetsPath, filePath);
var dif = DifResourceManager.getResource(fullDifPath);
if (dif == null)
{
Debug.LogError("Dif decode failed");
return;
}
var stringBuildler = new System.Text.StringBuilder();
var numberFormat = "0.####";
stringBuildler.AppendLine("## Dif to Obj encoder, by the marble dumbfucks who never give up ##");
stringBuildler.AppendLine("mtllib " + Path.GetFileNameWithoutExtension(fullDifPath) + ".mtl");
for (var i = 0; i < dif.vertices.Length; i++)
{
stringBuildler.AppendLine("v " +
(-dif.vertices[i].x).ToString(numberFormat) + " " +
(-dif.vertices[i].y).ToString(numberFormat) + " " +
dif.vertices[i].z.ToString(numberFormat)
);
}
stringBuildler.AppendLine();
for (var i = 0; i < dif.normals.Length; i++)
{
stringBuildler.AppendLine("vn " +
(-dif.normals[i].x).ToString(numberFormat) + " " +
(-dif.normals[i].y).ToString(numberFormat) + " " +
dif.normals[i].z.ToString(numberFormat)
);
}
stringBuildler.AppendLine();
for (var i = 0; i < dif.uvs.Length; i++)
{
stringBuildler.AppendLine("vt " +
dif.uvs[i].x.ToString(numberFormat) + " " +
dif.uvs[i].y.ToString(numberFormat)
);
}
stringBuildler.AppendLine();
stringBuildler.AppendLine();
for (int i = 0; i < dif.triangleIndices.Length; i++)
{
stringBuildler.AppendLine();
stringBuildler.AppendLine("usemtl " + dif.materials[i]);
for (int ii = 0; ii < dif.triangleIndices[i].Length; ii += 3)
{
var i0 = dif.triangleIndices[i][ii + 0] + 1;
var i1 = dif.triangleIndices[i][ii + 1] + 1;
var i2 = dif.triangleIndices[i][ii + 2] + 1;
stringBuildler.AppendLine($"f {i2}/{i2}/{i2} {i1}/{i1}/{i1} {i0}/{i0}/{i0}");
}
}
File.WriteAllText(Path.Combine(Application.dataPath, Path.GetFileNameWithoutExtension(fullDifPath) + ".obj"), stringBuildler.ToString());
File.WriteAllText(Path.Combine(Application.dataPath, Path.GetFileNameWithoutExtension(fullDifPath) + ".mtl"),
string.Join("\r\n", dif.materials.Distinct().Select(p =>
"newmtl " + p +
@"
Ka 1 1 1
Kd 1 1 1
Ks 1 1 1
d 1
illum 4
"
))
);
AssetDatabase.ImportAsset("Assets/" + Path.GetFileNameWithoutExtension(fullDifPath) + ".obj");
AssetDatabase.ImportAsset("Assets/" + Path.GetFileNameWithoutExtension(fullDifPath) + ".mtl");
var asset = AssetDatabase.LoadAssetAtPath <Object>("Assets/" + Path.GetFileNameWithoutExtension(fullDifPath) + ".obj");
EditorGUIUtility.PingObject(asset);
}
