FolderLink is asset made with Xpresso and Python that allows you to select folder which includes specific file types. You can decide which kind of file types you are looking for by typing file extensions (separated with comma). FolderLink will scan selected folder (top level) and collects approved files to dropdown menu.
Then you can link easily and quickly browse between different files with dropdown menu and link selected file’s file path to whatever you like, for example to textures or HDRIs.
import c4d, os # Import necessary libraries def main(): global path # Output file path string = search # Get extensions string string = search.replace(" ","") # Remove spaces extensions = string.split(",") # Split to list c = 0 # Initialize iteration variable names =  # Initialize list for file names obj = doc.SearchObject("FolderLink") cycle = c4d.BaseContainer() # Initialize base container bc = c4d.GetCustomDatatypeDefault(c4d.DTYPE_LONG) # Integer bc.SetString(c4d.DESC_NAME, "File") # Set user data name bc.SetInt32(c4d.DESC_CUSTOMGUI, c4d.CUSTOMGUI_CYCLE) # Set user data gui try: # Try to execute following code if folder != "": # If there is folder files = os.listdir(folder) # Get files from folder for f in files: # Iterate through files ext = f.rsplit(".",1) # Get file extension if ext in extensions: # If file extension matches c += 1 # Increase iteration cycle.SetString(c, f) # Add item to user data cycle names.append(f) # Add file name to list bc.SetContainer(c4d.DESC_CYCLE, cycle) # Set container obj.SetUserDataContainer([c4d.ID_USERDATA, 5], bc) # Update user data path = folder+"\\"+names[select-1] # Return file path else: # Else path = "" # Return empty string except IndexError: # If something went wrong path = "" # Return empty string
If you use Mac OS X you might have to change line 26 “\\” to “/”.
I updated the file so now it’s possible to filter files by filename extension. Thanks to @lasse_lauch for this suggestion.