Won't run sample programs

Installation
1

I have installed from the 1.8.1 installer onto my mac and get the following when trying to run any of the example programs given.

Traceback (most recent call last):
  File "Tut-Chessboard.py", line 10, in <module>
    import direct.directbase.DirectStart
  File "dstroot/pythoncode/Developer/Panda3D/lib/direct/directbase/DirectStart.py", line 3, in <module>
  File "dstroot/pythoncode/Developer/Panda3D/lib/direct/showbase/ShowBase.py", line 10, in <module>
  File "/Developer/Panda3D/lib/pandac/PandaModules.py", line 8, in <module>
    from libpandaModules import *
  File "/Developer/Panda3D/lib/pandac/libpandaModules.py", line 2, in <module>
    Dtool_PreloadDLL("libpanda")
  File "/Developer/Panda3D/lib/pandac/extension_native_helpers.py", line 79, in Dtool_PreloadDLL
    imp.load_dynamic(module, pathname)
ImportError: dlopen(/Developer/Panda3D/lib/libpanda.dylib, 2): Library not loaded: @executable_path/../Frameworks/Cg.framework/Cg
  Referenced from: /Developer/Panda3D/lib/libpanda.dylib
  Reason: image not found

I have a Mac OS X Lion 10.7.5 and also have Python 2.7.1 installed and use it fairly regularly. I am not even sure where to start to address this issue. I did check the libpanda.dylib, which it appears is an alias for the 1.8 version of libpanda, and both are where they should be. I have also tried 3-4 different example programs provided and get the same error.

Can someone give me an idea of where to start to address this?

2

You will also need to install the NVidia Cg Toolkit.

David

3

I see. Thank you.

Out of curiosity, is there a reason this is not mentioned obviously somewhere? The download page gave the implication it was the only thing needed.

4

Yes, I agree this should be mentioned on the download page. Actually, it would be even better if the download included Cg somehow itself, though I’m not sure if that’s possible.

David

5

Says it right here on the download page:
panda3d.org/download.php?pl … =1.8.1&sdk

It also says it on the page that appears when you exit the installer:
panda3d.org/manual/index.ph … ted_on_OSX

NVIDIA recently relaxed their redistribution rules, so perhaps we could start shipping it along now. Hmm, I’ll think about it.