public static bool Export(string folder, string filename, Mesh mesh, ExportMaterial[] textures, bool copyTextures)
{
exportMesh = mesh;
exportTextures = textures;
targetFolder = folder;
targetName = filename;
_copyTextures = copyTextures;
if(folder.Contains(" "))
{
EditorUtility.DisplayDialog("Filename Error","The filename can't contain spaces","I'm sorry");
return false;
}
if(filename.Contains(" "))
{
EditorUtility.DisplayDialog("Filename Error","The filename can't contain spaces","I'm sorry");
return false;
}
/*if (!CreateTargetFolder())
{
Debug.LogError("There was a problem with the destination folder");
return false;
}*/
MeshToFile(targetFolder, targetName);
exportMesh = null;
exportTextures = null;
return true;
}
private static string MeshToString(Dictionary <string, ExportMaterial> materialList)
{
StringBuilder sb = new StringBuilder();
sb.AppendLine("# Unity Asset Buildr OBJ Exporter\n http://buildr.jasperstocker.com");
sb.Append("g ").Append(targetName).Append("\n");
foreach (Vector3 lv in exportMesh.vertices)
{
Vector3 wv = lv;
//This is sort of ugly - inverting x-component since we're in
//a different coordinate system than "everyone" is "used to".
sb.Append(string.Format("v {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 lv in exportMesh.normals)
{
Vector3 wv = lv;
sb.Append(string.Format("vn {0} {1} {2}\n", -wv.x, wv.y, wv.z));
}
sb.Append("\n");
foreach (Vector3 v in exportMesh.uv)
{
sb.Append(string.Format("vt {0} {1}\n", v.x, v.y));
}
for (int t = 0; t < exportMesh.subMeshCount; t++)
{
sb.Append("\n");
if (t < exportTextures.Length - 1)
{
sb.Append("g ").Append(exportTextures[t].name).Append("\n");
sb.Append("usemtl ").Append(exportTextures[t].name).Append("\n");
sb.Append("usemap ").Append(exportTextures[t].name).Append("\n");
}
else
{
sb.Append("g ").Append(exportTextures[exportTextures.Length - 1].name).Append("\n");
sb.Append("usemtl ").Append(exportTextures[exportTextures.Length - 1].name).Append("\n");
sb.Append("usemap ").Append(exportTextures[exportTextures.Length - 1].name).Append("\n");
}
//See if this material is already in the materiallist.
try
{
ExportMaterial objMaterial = exportTextures[t];
materialList.Add(objMaterial.name, objMaterial);
}
catch (ArgumentException)
{
//Already in the dictionary
//Debug.LogError("Already in the dictionary");
}
int[] triangles = exportMesh.GetTriangles(t);
for (int i = 0; i < triangles.Length; i += 3)
{
//Because we inverted the x-component, we also needed to alter the triangle winding.
sb.Append(string.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n",
triangles[i] + 1 + vertexOffset, triangles[i + 1] + 1 + normalOffset, triangles[i + 2] + 1 + uvOffset));
}
}
vertexOffset += exportMesh.vertices.Length;
normalOffset += exportMesh.normals.Length;
uvOffset += exportMesh.uv.Length;
return(sb.ToString());
}