Hi,
I'm a coding newbie, so I'm often trying to frankenstein code I've found online and then re-write for my purposes.
I have this script which I pieced together which is supposed to take the top-level of the selected meshes and then individually export each as a GLTF.
It works, but not without issue. I noticed it would fail if the object had a Redshift material on it (I didn't need materials, so I added the lines to remove the texture tags). Sometimes C4D will crash when the script runs.
I also noticed that the script will not work (no error or anything) after, separately, doing a regular File->Export->GLTF. Restart C4D and then the script works again.
Hoping someone here can point out any flaws in my script, something that might solve the above issues, or generally ways to do it better.
Thanks!
The code:
import c4d
import os
import string
def export_gltf_for_object(obj, save_dir):
# Create a new temporary document
temp_doc = c4d.documents.BaseDocument()
# Clone the object and insert it into the temporary document
cloned_obj = obj.GetClone(c4d.COPYFLAGS_NONE, None)
temp_doc.InsertObject(cloned_obj)
# Remove material tags from the cloned object
tags = cloned_obj.GetTags() # Get a list of all tags on the cloned object
for tag in tags:
if isinstance(tag, c4d.TextureTag): # Check if the tag is a TextureTag (material tag)
tag.Remove() # Remove the tag from the object
# Prepare the file path name
file_name = obj.GetName() + ".gltf"
file_path = os.path.join(save_dir, file_name)
# Retrieve and setup the glTF export plugin.
objExportId = c4d.FORMAT_GLTFEXPORT
plug = c4d.plugins.FindPlugin(objExportId, c4d.PLUGINTYPE_SCENESAVER)
if not plug:
raise RuntimeError("Failed to retrieve the gltf exporter.")
data = {}
if not plug.Message(c4d.MSG_RETRIEVEPRIVATEDATA, data):
raise RuntimeError("Failed to retrieve private data.")
# Retrieve and set export settings
objExport = data.get("imexporter", None)
if objExport is None:
raise RuntimeError("Failed to retrieve BaseContainer private data.")
unit_scale_data = c4d.UnitScaleData()
unit_scale_data.SetUnitScale(1.0, c4d.DOCUMENT_UNIT_M) # Adjust as needed
objExport[c4d.GLTFEXPORTER_UNITSCALE] = unit_scale_data
objExport[c4d.GLTFEXPORTER_CURRENTFRAME] = True
objExport[c4d.GLTFEXPORTER_TEXTURES] = False
# Export the temporary document
if not c4d.documents.SaveDocument(temp_doc, file_path, c4d.SAVEDOCUMENTFLAGS_DONTADDTORECENTLIST, objExportId):
raise RuntimeError(f"Failed to save the document for object: {obj.GetName()}")
# Close and delete the temporary document from memory
c4d.documents.KillDocument(temp_doc)
print(f"Document successfully exported to: {file_path}")
def main():
# Get a directory to save the exported files
save_dir = c4d.storage.LoadDialog(title="Select directory for OBJ Exports", type=c4d.FILESELECTTYPE_ANYTHING, flags=c4d.FILESELECT_DIRECTORY)
if not save_dir:
return
active_doc = c4d.documents.GetActiveDocument()
selected_objects = active_doc.GetActiveObjects(0) # 0 means no hierarchy, only top-level selected objects
for obj in selected_objects:
export_gltf_for_object(obj, save_dir)
if __name__ == '__main__':
main()
