Blank white screen after packaging

General Discussion
1

I am using 1.7.0 SDK, and Windows 7 64 bit.

I am packaging with packp3d.exe, the tutorial panda application from the manual. (I copied the models to the project directory).

When I double click on the generated “p3d” file I get a blank-white window. If i run it from command line the output is as follows:

:display: loading display module: libpandagl.dll
:display: loading display module: libpandadx9.dll
:display: loading display module: libpandadx8.dll
:display: loading display module: libtinydisplay.dll
Known pipe types:
  wglGraphicsPipe
  wdxGraphicsPipe9
  wdxGraphicsPipe8
  TinyWinGraphicsPipe
  TinyOffscreenGraphicsPipe
(all display modules loaded.)
:display:windisplay: OS version: 6.1.2.7600
:display:windisplay:
:display:windisplay: max Mhz 2403000000, current Mhz 2403000000
:ShowBase: Default graphics pipe is wglGraphicsPipe (OpenGL).
:display: Unable to set window properties: !undecorated
:ShowBase: Successfully opened window of type wglGraphicsWindow (OpenGL)
:audio: NullAudioManager
:audio: NullAudioManager
:ShowBase: __dev__ == 0
:loader: Reading /mf/environment.bam
:loader: Reading /mf/panda-model.bam
:loader: Reading /mf/panda-walk4.bam
:ShowBase: Got window event: origin=(-1, -1) size=(640, 480) title="Panda" !unde
corated !fullscreen foreground !minimized open !cursor_hidden absolute
:ShowBase: Got window event: origin=(-1, -1) size=(640, 480) title="Panda" !unde
corated !fullscreen !foreground !minimized open !cursor_hidden absolute

PS: I tried vertex-buffers #f (found it somewhere on forums) - does nothing.

2

Does it run correctly if you run it interactively?

David

3

Yes, if I run

ppython script.py
it works!

I am wandering if it’s using the wrong python for the generating of a package or something related to python version.

4

Are you using this line in your main.py script?

if __name__ == '__main__':

If so: main is not “main” in your packaged script, but “main” (the name of the module, “main.py”).
Removing the “if” or changing this line like bleow should fix it then:

if __name__ in ['__main__', 'main']:
5

That makes as much sense as removing the ‘if’, because name is always one of those two (correct me if I’m wrong).

6

Nope, I don’t use main. Here is my script:

from direct.showbase.ShowBase import ShowBase
from math import pi, sin, cos
from direct.task import Task
from direct.actor.Actor import Actor
from direct.interval.IntervalGlobal import Sequence
from panda3d.core import Point3

class MyApp(ShowBase):
  def __init__(self):
    ShowBase.__init__(self)

    self.environ = self.loader.loadModel("environment")
    self.environ.reparentTo(self.render)
    self.environ.setScale(0.25, 0.25, 0.25)
    self.environ.setPos(-8, 42, 0)

    self.taskMgr.add(self.spinCameraTask, "SpinCameraTask")

    self.pandaActor = Actor("panda-model",
        {'walk' : 'panda-walk4'})
    self.pandaActor.setScale(0.005, 0.005, 0.005)
    self.pandaActor.reparentTo(self.render)
    self.pandaActor.loop('walk')

    pandaPosInterval1 = self.pandaActor.posInterval(13,
        Point3(0, -10, 0),
        startPos = Point3(0, 10, 0))
    pandaPosInterval2 = self.pandaActor.posInterval(13,
        Point3(0, 10, 0),
        startPos = Point3(0, -10, 0))
    pandaHprInterval1 = self.pandaActor.hprInterval(3,
        Point3(180, 0, 0),
        startHpr = Point3(0,0,0))
    pandaHprInterval2 = self.pandaActor.hprInterval(3,
        Point3(0, 0, 0),
        startHpr=Point3(180, 0, 0))
    self.pandaPace = Sequence(pandaPosInterval1,
        pandaHprInterval1,
        pandaPosInterval2,
        pandaHprInterval2,
        name='pandaPace')
    self.pandaPace.loop()


  def spinCameraTask(self, task):
    angle = task.time * 6.0
    radians = angle * (pi/180.0)
    self.camera.setPos(20 * sin(radians), -20.0*cos(radians), 3)
    self.camera.setHpr(angle, 0,0)
    return Task.cont

app = MyApp()
app.run()
7

Umm… right. My fault. Either it is ‘main’ if called directly by the interpreter, or ‘main’ if it is imported by some other script. So the line I suggested is useless, and removing the line is the right thing. But seems this is not the problem.

8

Hm. What happens if you import DirectStart, instead of ShowBase, and don’t inherit from ShowBase?

David

9

Okey.
I think I figured it out.
I copied the models but I didn’t copy the textures, so I got a bunch of errors which I thought were part of the build process:

:gobj(error): Unable to find texture "maps/envir-treetrunk.jpg" on model-path /d

In any case - i think it’s weird that running it from command line works (it finds the sample models and textures just fine) - but it does not work when packaging.

Thanks in any case!