public override void OnInspectorGUI()
{
var attachment = (UsdPrimSource)target;
var stageRoot = attachment.GetComponentInParent <UsdAsset>();
if (!stageRoot)
{
stageRoot = attachment.GetComponent <UsdAsset>();
}
if (!stageRoot)
{
Debug.LogError("No stage root found");
return;
}
var scene = stageRoot.GetScene();
if (scene == null)
{
Debug.LogError("Invalid scene: " + stageRoot.usdFullPath);
return;
}
var prim = scene.GetPrimAtPath(attachment.m_usdPrimPath);
//
// BEGIN GUI.
//
GUILayout.BeginHorizontal();
EditorGUILayout.LabelField("USD Prim: ", GUILayout.Width(100));
EditorGUILayout.SelectableLabel(attachment.m_usdPrimPath, EditorStyles.textField,
GUILayout.Height(EditorGUIUtility.singleLineHeight));
GUILayout.EndHorizontal();
if (prim != null)
{
GUILayout.BeginHorizontal();
EditorGUILayout.LabelField("Prim Type: ", GUILayout.Width(100));
EditorGUILayout.SelectableLabel(prim.GetTypeName(), EditorStyles.textField,
GUILayout.Height(EditorGUIUtility.singleLineHeight));
GUILayout.EndHorizontal();
}
EditorGUILayout.LabelField("USD Time: " + stageRoot.m_usdTimeOffset);
m_showExpandedUi = GUILayout.Toggle(m_showExpandedUi, "Show USD Inspector");
if (!m_showExpandedUi)
{
return;
}
//
// Attribute Grid.
//
// Separator.
EditorGUILayout.LabelField("", GUI.skin.horizontalSlider);
if (prim == null)
{
EditorGUILayout.LabelField("(Prim is not valid/loaded in USD file)");
return;
}
DrawAttributeGui(prim, scene);
//
// Prim Composition Graph.
//
// Separator.
EditorGUILayout.LabelField("", GUI.skin.horizontalSlider);
EditorGUILayout.LabelField("Prim Composition Graph", EditorStyles.boldLabel);
// Since composition can only happen at the prim level, the prim is used to construct the
// composition graph. The Pcp (Prim Cache Population) API is the lowest level of the
// composition system, which means it's most powerful and most complicated. PcpNodeRefs
// provide direct access to the in-memory composition structure. Note that unloaded prims
// will not have a PrimIndex.
//
// The composition graph is typically less useful for users, since it's a complicated
// structure to understand, but often there is a small handful of power users on a
// production responsible for setting up the pipeline composition structure; for them this
// visualization can be extremely helpful.
WalkNodes(prim.GetPrimIndex().GetRootNode());
if (selectedAttribute != null && selectedAttribute.IsValid())
{
DrawAttributeInfo(scene);
}
}