/// <summary>
/// Converts a SerializedProperty to a VtValue, for writing to USD.
/// </summary>
static public pxr.VtValue PropToVtValue(SerializedProperty prop)
{
switch (prop.propertyType)
{
case SerializedPropertyType.AnimationCurve:
// TODO: needs to be broken down into atoms.
return(new pxr.VtValue());
case SerializedPropertyType.ArraySize:
return(prop.intValue);
case SerializedPropertyType.Boolean:
return(prop.boolValue);
case SerializedPropertyType.Bounds:
return(UnityTypeConverter.BoundsToVtArray(prop.boundsValue));
case SerializedPropertyType.BoundsInt:
// TODO: add this to UnityTypeConverter.
var bi = prop.boundsIntValue;
var bnds = new Bounds(bi.center, bi.size);
return(UnityTypeConverter.BoundsToVtArray(bnds));
case SerializedPropertyType.Character:
return(prop.intValue);
case SerializedPropertyType.Color:
return(UnityTypeConverter.ColorToVec4f(prop.colorValue));
case SerializedPropertyType.Enum:
return(prop.enumDisplayNames[prop.enumValueIndex]);
case SerializedPropertyType.ExposedReference:
// TODO.
//return prop.exposedReferenceValue;
return(new pxr.VtValue());
case SerializedPropertyType.FixedBufferSize:
return(prop.fixedBufferSize);
case SerializedPropertyType.Float:
return(prop.floatValue);
case SerializedPropertyType.Generic:
return("GENERIC");
case SerializedPropertyType.Gradient:
// TODO: gradientValue accessor is not public. wat?
return("Gradient");
case SerializedPropertyType.Integer:
return(prop.intValue);
case SerializedPropertyType.LayerMask:
return(prop.intValue);
case SerializedPropertyType.ObjectReference:
var obj = prop.objectReferenceValue;
if (obj == null)
{
return(new pxr.VtValue(""));
}
// For object references in the scene, the asset path will be empty/null.
// However, for mesh and material instances in the scen, what do we want to do here?
// They are serialized to .unity files with just a file id, rather than fileid, pathid, and guid.
string assetPath = AssetDatabase.GetAssetPath(prop.objectReferenceValue);
if (string.IsNullOrEmpty(assetPath))
{
return(new pxr.VtValue(""));
}
var fileId = prop.FindPropertyRelative("m_FileID").intValue;
var pathId = prop.FindPropertyRelative("m_PathID").intValue;
string guid = AssetDatabase.AssetPathToGUID(assetPath);
return(prop.FindPropertyRelative("m_PathID").intValue + ":" + guid + ":" + fileId);
case SerializedPropertyType.Quaternion:
return(UnityTypeConverter.QuaternionToQuatf(prop.quaternionValue));
case SerializedPropertyType.Rect:
return(UnityTypeConverter.RectToVtVec4(prop.rectValue));
case SerializedPropertyType.RectInt:
// TODO: add this to UnityTypeConverter.
var ri = prop.rectIntValue;
return(new pxr.GfVec4i(ri.x, ri.y, ri.width, ri.height));
case SerializedPropertyType.String:
return(prop.stringValue);
case SerializedPropertyType.Vector2:
return(UnityTypeConverter.Vector2ToVec2f(prop.vector2Value));
case SerializedPropertyType.Vector2Int:
// TODO: add this to UnityTypeConverter.
return(new pxr.GfVec2i(prop.vector2IntValue.x, prop.vector2IntValue.y));
case SerializedPropertyType.Vector3:
return(UnityTypeConverter.Vector3ToVec3f(prop.vector3Value));
case SerializedPropertyType.Vector3Int:
var v3 = prop.vector3IntValue;
// TODO: add this to UnityTypeConverter.
return(new pxr.GfVec3i(v3.x, v3.y, v3.z));
case SerializedPropertyType.Vector4:
return(UnityTypeConverter.Vector4ToVec4f(prop.vector4Value));
}
return("UNKNOWN");
}