https://github.com/erfajo/OrchidForDynamo/issues/34
I presume it will be implemented soon.
At the moment I have a solution with Python.
#Copyright Alberto Tono alberto.tono@hok.com
import clr
clr.AddReference('RevitAPI')
from Autodesk.Revit.DB import *
clr.AddReference('RevitServices')
import RevitServices
from RevitServices.Persistence import DocumentManager
doc = DocumentManager.Instance.CurrentDBDocument
def toList(obj):
if hasattr(obj, '__iter__'): return obj
else: return [obj]
mats = toList(UnwrapElement(IN[0]))
for mat in mats:
appearanceAssetId = mat.AppearanceAssetId
assetElem = doc.GetElement(appearanceAssetId)
getRenderingAsset = assetElem.GetRenderingAsset()
genericDiffuseProperty = getRenderingAsset.FindByName("generic_diffuse")
connectedAsset = genericDiffuseProperty.GetSingleConnectedAsset()
bitmapProperty = connectedAsset["unifiedbitmap_Bitmap"]
path = bitmapProperty.Value
OUT = path
