panda3d and tkinter


Hi. I have been struggling to come up with a tkinter Frame that contains a panda3d view. Can anyone please post a small example? Many thanks.



This works for me (tested on Windows and Linux):

from direct.showbase.ShowBase import ShowBase
from panda3d.core import WindowProperties
import Tkinter

# Start ShowBase, but don't open a Panda window yet
base = ShowBase(windowType='none')

# Start Tkinter integration, get the root window handle

frame = base.tkRoot
id = frame.winfo_id()
width = frame.winfo_width()
height = frame.winfo_height()

props = WindowProperties()
props.setOrigin(0, 0)
props.setSize(width, height)


scene = base.loader.loadModel("environment")

Of course, you’ll want to add code to automatically resize the Panda window when the Tk window is resized, but it gets the point across.


Thanks for this. It helps. But it also crashes on OS X, with a segfault on this line:


I am experimenting further. FWIW, here is the stack trace:

* thread #1: tid = 0x27af60, 0x00007fff97734d57 libobjc.A.dylib`objc_msgSend + 23, queue = '', stop reason = EXC_BAD_ACCESS (code=1, address=0x8b1110)
  * frame #0: 0x00007fff97734d57 libobjc.A.dylib`objc_msgSend + 23
    frame #1: 0x000000010f5d9f6b libpandagl.dylib`CocoaGraphicsWindow::open_window() + 1963
    frame #2: 0x0000000103a84913 libpanda.1.10.dylib`GraphicsWindow::set_properties_now(WindowProperties&) + 419
    frame #3: 0x000000010f5dc696 libpandagl.dylib`CocoaGraphicsWindow::set_properties_now(WindowProperties&) + 38
    frame #4: 0x0000000103a84589 libpanda.1.10.dylib`GraphicsWindow::process_events() + 121
    frame #5: 0x000000010f5d96da libpandagl.dylib`CocoaGraphicsWindow::process_events() + 26
    frame #6: 0x0000000103a432ed libpanda.1.10.dylib`GraphicsEngine::WindowRenderer::do_windows(GraphicsEngine*, Thread*) + 77
    frame #7: 0x0000000103a3ea99 libpanda.1.10.dylib`GraphicsEngine::open_windows() + 201
    frame #8: 0x0000000103a3de47 libpanda.1.10.dylib`GraphicsEngine::make_output(GraphicsPipe*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<c\
har> > const&, int, FrameBufferProperties const&, WindowProperties const&, int, GraphicsStateGuardian*, GraphicsOutput*) + 2503
    frame #9: 0x0000000102aad4b1`Dtool_GraphicsEngine_make_output_668(_object*, _object*, _object*) + 769
    frame #10: 0x00000001000b102c Python`PyEval_EvalFrameEx + 15692


According to the Tkinter documentation for winfo_id:

Hmm, I believe we need an NSWindow or NSView pointer. Perhaps Tkinter doesn’t expose this information on Mac OS X? I can’t find anything useful when Googling about it.

It might be possible to render to a texture on Mac, let Panda copy it to RAM, and then render that image in Tkinter in some way or another. But it’d be a significant performance impairment.

split this topic #5

2 posts were split to a new topic: Tkinter error opening directtools