[PyOpenGL-Users] [ pyopengl-Feature Requests-458589 ] Real Time Shadow Library

[SourceForge.net <noreply@so...>]

Feature Requests item #458589, was opened at 2001-09-05 01:47
Message generated for change (Comment added) made by madact
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=355988&aid=458589&group_id=5988

Category: new module
Group: v2.1
Status: Open
Resolution: None
Priority: 3
Submitted By: Mike C. Fletcher (mcfletch)
Assigned to: Tarn Weisner Burton (twburton)
Summary: Real Time Shadow Library

Initial Comment:
A wrapper for a library similar to 
http://reality.sgi.com/mjk/tips/rts/ would be very 
cool.  I'm guessing there are better libraries 
somewhere, but I haven't found them with some 
preliminary searching.

----------------------------------------------------------------------

Comment By: Yuri Vilmanis (madact)
Date: 2004-09-29 13:03

Message:
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Please do... this is something (most) free engines &
scenegraphs dont even have. BTW, the link is dead - was this
lib shadow maps or stencil buffer? 

----------------------------------------------------------------------

Comment By: Mike C. Fletcher (mcfletch)
Date: 2001-09-05 21:32

Message:
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Let's ask Mark for a clarification of the license, my 
reading is that it's fine, but we'll make sure before we go 
ahead with it.

----------------------------------------------------------------------

Comment By: Tarn Weisner Burton (twburton)
Date: 2001-09-05 01:58

Message:
Logged In: YES 
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This was already done back in 2.0a2, and killed in 2.0a3.  
I killed it because I wasn't sure about the license.  It 
has the same license as GLUT.  Do you me want to resurrect 
it?

----------------------------------------------------------------------

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[PyOpenGL-Users] gtkgl: gtkglext or gtkglarea?

[fulko <vwf@fv...>]

Hello,

I often use GL within GTK. Gtkgl died quietly, and now I have to choose
between gtkglext or gtkglarea. Gtkglext can be used as almost a drop-in
replacement, but gtkglarea seems to have some promising features too.
Can someone explain the differences and what is important for choosing
one.

Thanks,
Fulko

Re: [PyOpenGL-Users] Importing 3D Models into Python

[Y S <yury1854@ho...>]

This looks really nice. Thank you Shane. When I get around to it, I'll 
glance at the tessellations.

-Yury

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Re: [PyOpenGL-Users] Importing 3D Models into Python

[Mike C. Fletcher <mcfletch@ro...>]

Well, I wrote it, so I'm biased ;) , but I normally use VRML97 and load 
it with OpenGLContext.  Under the covers the various OpenGLContext 
scenegraph nodes are creating (normally array-based) representations of 
the loaded geometry in very OpenGL-friendly formats.  VRML97 can be 
generated by quite a considerable number of modelers, including the free 
(but very-weird if you're an old AutoCAD/3DS/3DSMax/Maya modeler like 
me) Blender.  You could quite conceivably rip the parsing + 
pre-rendering-processing code out of OpenGLContext if you want to import 
into your own scenegraph model (it's all BSD-licensed).

3DS files, btw, are often exportable from other modelers, 3DSMax is just 
about as foreign to 3DS as any other modeler.

I believe there may be some Quake-style map importers, but I've long 
since lost track of those projects.

I believe the University of Waterloo computer graphics course has a .obj 
to PyOpenGL importer kicking about somewhere, but I don't think they've 
released the source code.

Good luck,
Mike

Y S wrote:
...

> If anyone has any suggestions about a good way to import 3D models to 
> use in Python with PyOpenGL, I would appreciate the feedback. Thank you. 

...

________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

Re: [PyOpenGL-Users] Importing 3D Models into Python

[Shane Holloway (IEEE) <shane.holloway@ie...>]

Yury,

I haven't gotten a chance to wrap 3DS files, but I do have a good start 
on loading the geometry from Lightwave Object 5.0 files and Wavefront 
OBJ files.  They're covered by a BSD style license, so you should be 
able to use them wherever you want.  Right now, I have a tessellation 
problem for large polygons; I simply haven't had the time to update the 
code to use the GLU tessellator objects.  Also included in our toolbag 
is a triangle stripification algorithm.  See if you like it.

http://techgame.net/projects/Runeblade/browser/trunk/RBRapier/RBRapier/Formats/

http://techgame.net/projects/Runeblade/browser/trunk/RBRapier/RBRapier/Tools/Geometry/Analysis/

Hope that helps you (and maybe some others!)

I'd love patches, too, if you have time to create them.

Thanks,
-Shane

Y S wrote:
> Hello,
> 
> I am a long time programmer, but just recently started working with 
> PyOpenGL. I am designing an isometric 3D (true rendered 3D) game. I ran 
> into a road block and would like some suggestions. I need to import 3D 
> models from files and render them. I have had very limited success. I 
> did some research and found several utilities. A small 3DS loader, but I 
> do not really want to use 3DS files as I am not a huge fan of 3D Studio 
> Max. In addition, I had trouble getting it to work. I also found 
> PyCal3D, but apparently that's been dead for a while. I managed to grab 
> a copy of the source from archive.org, but I would prefer to use 
> something that is still being developed or completed, rather than dead 
> in early alpha.
> 
> If anyone has any suggestions about a good way to import 3D models to 
> use in Python with PyOpenGL, I would appreciate the feedback. Thank you.
> 
> -Yury
> 
> P.S. Is PyCal3D really dead? If so, why? I did an extensive search, but 
> found nothing.

[PyOpenGL-Users] Importing 3D Models into Python

[Y S <yury1854@ho...>]

Hello,

I am a long time programmer, but just recently started working with 
PyOpenGL. I am designing an isometric 3D (true rendered 3D) game. I ran into 
a road block and would like some suggestions. I need to import 3D models 
from files and render them. I have had very limited success. I did some 
research and found several utilities. A small 3DS loader, but I do not 
really want to use 3DS files as I am not a huge fan of 3D Studio Max. In 
addition, I had trouble getting it to work. I also found PyCal3D, but 
apparently that's been dead for a while. I managed to grab a copy of the 
source from archive.org, but I would prefer to use something that is still 
being developed or completed, rather than dead in early alpha.

If anyone has any suggestions about a good way to import 3D models to use in 
Python with PyOpenGL, I would appreciate the feedback. Thank you.

-Yury

P.S. Is PyCal3D really dead? If so, why? I did an extensive search, but 
found nothing.

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Re: [PyOpenGL-Users] wx.GLCanvas animation example needed

[Mike C. Fletcher <mcfletch@ro...>]

If you're looking for something simple-to-program, you'll likely want to 
go with one of the scenegraph-based systems, rather than raw OpenGL.

OpenGLContext has a demo wherein a rotating cube is stopped/started by 
clicking on a wxPython button.  With something like OpenGLContext, you 
create a (VRML97 for OpenGLContext) scene with your 3D modeler, giving 
each car/cone a DEF name in your modeler that you then access from your 
simulation code to get pointers to the Transform nodes.  Setting 
someTransform.translation and someTransform.rotation then lets you 
move/rotate individual cars.

Depending on how you want to drive the animation, you can either use an 
internal timer (i.e. one provided by the scenegraph library) or just 
drive the animation(s) from a wxPython one.  The wx_with_controls.py 
sample mentioned uses a scenegraph timer (they tend to be more flexible, 
offering speed control, start/stop/reverse and the like), but if you 
know wxPython already it shouldn't be too hard to translate that to 
wxPython operations.

To give you an idea, this is what the sample is doing to get it's (very 
basic) animation:

    def OnTimerFraction( self, event ):
        """Update our rotation from the timer event"""
        self.sg.children[0].rotation = (
            0,1,0,event.fraction()* 3.14149*2
        )
       
    def OnButtonPause( self, event ):
        """Handle the wxPython event from our button"""
        if self.rotating:
            self.time.pause()
        else:
            self.time.resume()
        self.rotating = not self.rotating

the events that come in are scenegraph events, not wxPython events 
there.  In the first method, a particular node in the scenegraph is 
rotated about the 0,1,0 axis, with its rotation as a function of the 
fraction() of the time-cycle represented by the event.  The 
OnButtonPause method is taking a wxPython event and using it to modify 
the Timer (i.e. pause/resume it).  The scenegraph engine takes care of 
scheduling redraws when the scenegraph is changed.

The same basic idea works for any scenegraph engine, such as Pivy, 
Vpython, or the like, though I don't know of any others which are able 
to run under wxPython.  If that isn't a hard requirement, your choice of 
scenegraph platforms expands significantly.  Note: if you're intending 
to use multiple windows, wxPython likely isn't a good choice ATM, as it 
has a bug that makes multiple window interactions nonfunctional.  My 
personal recommendation for something this small would probably be 
Vpython, which is targeted at those looking to create simple educational 
simulations.  Oh, I realise this is a long shot, but if your goal is 
court rendering, be very careful and read a lot, there's quite a few 
non-intuitive rules surrounding that stuff.

If you really do want to program "to the metal" in raw OpenGL, then 
expect to be storing a model of your system somewhere (i.e. 
position/location for each thing), and during rendering of each frame, 
use that model to control the creation of the transformation matrix for 
each object (and be sure to push/pop the matrix stack for each object).  
That's what the scenegraph is doing for you under the covers, of course.

Enjoy yourself,
Mike

AP Meyer wrote:

> Dear PyOpenGL users
>
> For a simulation project I would like to use the wxPython GLCanvas for 
> animated visualisation.

...
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

[PyOpenGL-Users] wx.GLCanvas animation example needed

[AP Meyer <a.p.meyer@fe...>]

Dear PyOpenGL users

For a simulation project I would like to use the wxPython GLCanvas for 
animated visualisation.

To start with, I have a wxPython frame with some cone and cube that can 
be rotated on user interaction. For teh simulation, however, I need to 
move objects around in an environment (imagine cars riding on streets).

Would somebody from one of these lists be so kind as to direct me to 
example code for creating and moving objects in a GLCanvas, please?

What I imagine to see in my visualisation are moving blocks (cars) 
inside transparent spheres, with transparent cones attached 
(representing the view field) and arrows (for direction and speed). The 
goal is to demonstrate how cars navigate to avoid traffic jams and 
accidents. The attached image of a first Tkinter 2D version gives an 
impression (and motivation to go for something nicer...).

Thanks for your support
Andre


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[PyOpenGL-Users] [ pyopengl-Feature Requests-661691 ] OpenGL is at 1.4

[SourceForge.net <noreply@so...>]

Feature Requests item #661691, was opened at 2003-01-03 16:54
Message generated for change (Comment added) made by drapmeyer
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=355988&aid=661691&group_id=5988

Category: GL
Group: v2.2
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: OpenGL is at 1.4

Initial Comment:
Currently, OpenGL is at version 1.4.  It sure would be 
nice to access the new features from withion Python.

----------------------------------------------------------------------

Comment By: Andre Meyer (drapmeyer)
Date: 2004-09-21 10:34

Message:
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So what about OpenGL 2.0?

http://www.opengl.org/documentation/spec.html

http://www.opengl.org/documentation/opengl_current_version.html


----------------------------------------------------------------------

Comment By: Mike C. Fletcher (mcfletch)
Date: 2003-10-23 17:00

Message:
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Not dead AFAIK, we just released a new version 2 or 3 days
ago ;) .  That said, the primary developer (me) is not
particularly flush for time to work on PyOpenGL, so I'm
mostly acting as manager, rather than developer these days.
 I'd *love* to see the extensions for 1.4 added, but unless
someone decides to pay my employer for me to work on
PyOpenGL (which really doesn't seem likely), or someone with
far more time steps up to do the work, the development is
going to be slow.

----------------------------------------------------------------------

Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-23 15:41

Message:
Logged In: NO 

i love pyopengl, it is great! but is it dead?

why isn't opengl 1.4 supported? and why isn't there a win32 
installer for python 2.3?

----------------------------------------------------------------------

Comment By: Mike C. Fletcher (mcfletch)
Date: 2003-01-07 14:06

Message:
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Agreed, want to submit a patch ;) .

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Re: [PyOpenGL-Users] PyOpenGL and stereo

[Patrick Hartling <patrick@13...>]

On Mon, 2004-09-20 at 11:35 -0400, Yuichi Sakano wrote:
> Hi.
>=20
> My previous mail seems to have lacked some information. Sorry.
>=20
> I'm using a pair of liquid crystal shutter glasses (closing the=20
> shutters in front of the eyes alternately synchronizing with the CRT=20
> refresh rate). So, I'd like to present the graphics for the left and=20
> right eyes alternately synchronizing with the CRT refresh rate.

By combining PyOpenGL with PyJuggler
(http://www.vrjuggler.org/pyjuggler/), you can get support for this type
of stereoscopic rendering without any special coding.  The enabling and
disabling of stereo happens at the configuration level rather than at
the application level.

Unfortunately, the most recent releases of VR Juggler and PyJuggler have
not been tested on Mac OS X because I don't have access to any OS X
machine.  I'm trying to make use of the SourceForge compile farm's OS X
machines to address this limitation, but there have been login problems
with the compile farm during this past week.  Even then, I don't have
access to OS X 10.3--only 10.1 and 10.2.

As a fair warning, VR Juggler has fundamentally different goals than
GLUT, so the use of VR Juggler may not meet your expectations if you are
thinking it will behave like GLUT.  It will allow you to do stereoscopic
rendering without any special coding effort on your part, and it
supports multi-pipe and cluster-based systems pretty transparently if
you ever wanted to go that route.  For the use case you are describing,
however, the interaction functionality will probably not be what you
expect.

 -Patrick

> On 18 Sep 2004 at 11:59 PM, David Keeney wrote:
>=20
> > On 17 Sep 2004 at 16:40, Yuichi Sakano wrote:
> >
> >> Hi.
> >>
> >> Is anyone using stereo (not audio but vision) with PyOpenGL? I'm=20
> >> trying
> >> to using it, but I'm at a loss how to use it. If you have succeeded in
> >> it, would you let me know how (if possible, send the script) please?
> >
> > What hardware are you using for the stereoscopic vision?
> >
> > Take a look at stereo_zoe, which is a simple OpenGL rendering
> > engine adapted to show stereo graphics using Edimensional's LCD
> > glasses and top/bottom display mode.
> >
> > http://sourceforge.net/project/showfiles.php?group_id=3D110483&pac
> > kage_id=3D119667
> >
> > -or-
> > http://www.sourceforge.net/project/pduel
> >
> > David Keeney
> >
> >>
> >> Actually, I have checked the archive of this mailing list and found
> >> that Jack Jansen had sent a similar question mail.
> >> http://sourceforge.net/mailarchive/message.php?msg_id=3D1579199
> >> But no one seems to have responsed to it using this mailing list.
> >>
> >> I'm using Mac G4 (OS10.2.8, 866MHz-dual processors) and ATI RADEON
> >> graphics board.
> >> I can use stereo with C and OpenGL using a sample code.
> >> http://developer.apple.com/samplecode/GLUTStereo/GLUTStereo.html
> >>
> >> Thanks for any help.
> >>
> >> Yuichi
> >>
> >>
> >>
> >> -------------------------------------------------------
> >> This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
> >> Project Admins to receive an Apple iPod Mini FREE for your judgement=20
> >> on
> >> who ports your project to Linux PPC the best. Sponsored by IBM.
> >> Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
> >> _______________________________________________
> >> PyOpenGL Homepage
> >> http://pyopengl.sourceforge.net
> >> _______________________________________________
> >> PyOpenGL-Users mailing list
> >> PyOpenGL-Users@...
> >> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
> >>
> >
> >
> >
>=20
>=20
>=20
> -------------------------------------------------------
> This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
> Project Admins to receive an Apple iPod Mini FREE for your judgement on
> who ports your project to Linux PPC the best. Sponsored by IBM.
> Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyOpenGL-Users@...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
--=20
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http://www.137.org/patrick/             | 2274 Howe Hall Room 2624
PGP: http://tinyurl.com/2oum9           | http://www.vrac.iastate.edu/

Re: [PyOpenGL-Users] Stencil _slow_

[fulko <vwf@fv...>]

On Mon, Sep 20, 2004 at 07:48:31AM -0700, Fred Burton wrote:
> >
> Try different color depths and see what happens.
> 
24 bit works

It is really true: if use spend more, you get more.
I've become a believer!

Thanks,

Fulko

Re: [PyOpenGL-Users] PyOpenGL and stereo

[Yuichi Sakano <yuichi@cs...>]

Hi.

My previous mail seems to have lacked some information. Sorry.

I'm using a pair of liquid crystal shutter glasses (closing the 
shutters in front of the eyes alternately synchronizing with the CRT 
refresh rate). So, I'd like to present the graphics for the left and 
right eyes alternately synchronizing with the CRT refresh rate.

Thanks,
Yuichi


On 18 Sep 2004 at 11:59 PM, David Keeney wrote:

> On 17 Sep 2004 at 16:40, Yuichi Sakano wrote:
>
>> Hi.
>>
>> Is anyone using stereo (not audio but vision) with PyOpenGL? I'm 
>> trying
>> to using it, but I'm at a loss how to use it. If you have succeeded in
>> it, would you let me know how (if possible, send the script) please?
>
> What hardware are you using for the stereoscopic vision?
>
> Take a look at stereo_zoe, which is a simple OpenGL rendering
> engine adapted to show stereo graphics using Edimensional's LCD
> glasses and top/bottom display mode.
>
> http://sourceforge.net/project/showfiles.php?group_id=110483&pac
> kage_id=119667
>
> -or-
> http://www.sourceforge.net/project/pduel
>
> David Keeney
>
>>
>> Actually, I have checked the archive of this mailing list and found
>> that Jack Jansen had sent a similar question mail.
>> http://sourceforge.net/mailarchive/message.php?msg_id=1579199
>> But no one seems to have responsed to it using this mailing list.
>>
>> I'm using Mac G4 (OS10.2.8, 866MHz-dual processors) and ATI RADEON
>> graphics board.
>> I can use stereo with C and OpenGL using a sample code.
>> http://developer.apple.com/samplecode/GLUTStereo/GLUTStereo.html
>>
>> Thanks for any help.
>>
>> Yuichi
>>
>>
>>
>> -------------------------------------------------------
>> This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
>> Project Admins to receive an Apple iPod Mini FREE for your judgement 
>> on
>> who ports your project to Linux PPC the best. Sponsored by IBM.
>> Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
>> _______________________________________________
>> PyOpenGL Homepage
>> http://pyopengl.sourceforge.net
>> _______________________________________________
>> PyOpenGL-Users mailing list
>> PyOpenGL-Users@...
>> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
>>
>
>
>

[PyOpenGL-Users] Stencil _slow_

[fulko <vwf@fv...>]

Hello,

I try to use a stencil buffer with OpenGL and gtk (in Python).
The stencil does not work correctly, and is soooo slowwww (~100x).
After two days my resources are exhausted; I don't know what to try
next. I need the stencil for a rather simple operation: not drawing 
in a few selected areas.

Documentation on the use of stencils is sparse, most about lighting,
and all for C. Does someone have a simple stencil example in Python 
that works fine? Or does someone know the magic trick to get it running?

I tried to force the use of the stencil-buffer with:
glconfig = gtk.gdkgl.Config(attrib_list=(gtk.gdkgl.RGBA,
	                                 gtk.gdkgl.DOUBLEBUFFER,
                                         gtk.gdkgl.STENCIL_SIZE, 1,
                                         gtk.gdkgl.DEPTH_SIZE, 1))
but with no effect: STENCIL_SIZE seems to be not available


I run Python 2.3, PyOpenGL 2.0, I tried pygtkglext-1.0.1 and
python-gtkgl 2.0, both with pyGTK 2.0. My video-card is an 
NVidia geForce2 GTK with 1.0-6106 drivers. All on Debian Testing 
(a rather old testing version).

Thanks for any help,
Fulko

Re: [PyOpenGL-Users] PyOpenGL and stereo

[David Keeney <dkeeney@tr...>]

On 17 Sep 2004 at 16:40, Yuichi Sakano wrote:

> Hi.
> 
> Is anyone using stereo (not audio but vision) with PyOpenGL? I'm trying 
> to using it, but I'm at a loss how to use it. If you have succeeded in 
> it, would you let me know how (if possible, send the script) please?

What hardware are you using for the stereoscopic vision?  

Take a look at stereo_zoe, which is a simple OpenGL rendering 
engine adapted to show stereo graphics using Edimensional's LCD 
glasses and top/bottom display mode.

http://sourceforge.net/project/showfiles.php?group_id=110483&pac
kage_id=119667

-or-
http://www.sourceforge.net/project/pduel

David Keeney

> 
> Actually, I have checked the archive of this mailing list and found 
> that Jack Jansen had sent a similar question mail.
> http://sourceforge.net/mailarchive/message.php?msg_id=1579199
> But no one seems to have responsed to it using this mailing list.
> 
> I'm using Mac G4 (OS10.2.8, 866MHz-dual processors) and ATI RADEON 
> graphics board.
> I can use stereo with C and OpenGL using a sample code.
> http://developer.apple.com/samplecode/GLUTStereo/GLUTStereo.html
> 
> Thanks for any help.
> 
> Yuichi
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170
> Project Admins to receive an Apple iPod Mini FREE for your judgement on
> who ports your project to Linux PPC the best. Sponsored by IBM.
> Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyOpenGL-Users@...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users
> 

[PyOpenGL-Users] PyOpenGL and stereo

[Yuichi Sakano <yuichi@cs...>]

Hi.

Is anyone using stereo (not audio but vision) with PyOpenGL? I'm trying 
to using it, but I'm at a loss how to use it. If you have succeeded in 
it, would you let me know how (if possible, send the script) please?

Actually, I have checked the archive of this mailing list and found 
that Jack Jansen had sent a similar question mail.
http://sourceforge.net/mailarchive/message.php?msg_id=1579199
But no one seems to have responsed to it using this mailing list.

I'm using Mac G4 (OS10.2.8, 866MHz-dual processors) and ATI RADEON 
graphics board.
I can use stereo with C and OpenGL using a sample code.
http://developer.apple.com/samplecode/GLUTStereo/GLUTStereo.html

Thanks for any help.

Yuichi

Re: [PyOpenGL-Users] glut32 not found

[enrike <enrike@al...>]

hi

>>
>> i have been installling and uninstalling python and all the modules on 
>> my XP machine and now i am getting an error when i try to import GLUT. 
>> It says it cannot find it. i have downloaded it and placed it on 
>> windows/system32 but then i get another error suggesting this maight 
>> not be the right glut32.dll i should be using.
> 
> 
> You'll want to be using GLUT 3.7(.6), probably the Win32 binary release 
> pointed to by the installation page.  If you can post the actual error 
> messages it would be far more likely that we I can help diagnose and 
> solve the problem.
> 
> I'm assuming you're using the binary release on Python 2.3 with PyOpenGL 
> 2.0.1.08, if not, let me know (generally speaking, when asking these 
> kinds of questions it's very useful to give as much information as 
> possible about your software setup).

I dont understand what went wrong but i finally solve it by copying 
glut32.dll version 3.7.6 into my windows/system32 folder
I just had installed python 2.3.4 then 
PyOpenGL-2.0.1.07.py2.3-numpy23.exe and then wxPythonWIN32-2.5.1.5-Py23.exe

I had also intalled PIL, Numeric-23.0.win32-py2.3.exe and 
numarray-0.9.win32-py2.3.exe

thanks

-- 
enrike

Re: [PyOpenGL-Users] Problems

[Mike C. Fletcher <mcfletch@ro...>]

David Keeney wrote:

> On 13 Sep 2004 at 16:38, Brian Debuire wrote:
>
>> I have a problem running PyOpenGL, i get a message "Abnormal program 
> termination" when i run
>> any PyOpenGL app.
>>
>> I have installed all the requierements but Glut, because i dont know 
> how to install it, i have the .dll
>> and the .lib and so, but where should i put those????
> You don't say what platform you are using, but if you are using 
> Windows try putting
> glut32.dll in the \windows\system folder.

Almost, glut32.dll should be installed in the *system32* folder on 
Windows, not the system folder (which is IIRC only for Win3.1 
compatibility files).  If the OP is using a Linux/Unix-ish system (he 
does say he's got a .so as well, somehow), then my suggestion would be 
(strongly) use the system's package-manager to do the installation :) .  
"emerge glut"  or "apt-get glut" or something like that should take care 
of the installation quite nicely.

Not sure where the abnormal program terminations are coming from, there 
really shouldn't AFAIK be any if just GLUT is missing.

Have fun,
Mike

________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

Re: [PyOpenGL-Users] Problems

[David Keeney <dkeeney@tr...>]

On 13 Sep 2004 at 16:38, Brian Debuire wrote:

> I have a problem running PyOpenGL, i get a message "Abnormal program termination" when i run 
> any PyOpenGL app.
> 
> I have installed all the requierements but Glut, because i dont know how to install it, i have the .dll 
> and the .lib and so, but where should i put those????
 
You don't say what platform you are using, but if you are using Windows try putting
glut32.dll in the \windows\system folder.

David Keeney

> Hi,
> 
> I am very lost here, and i will apreciate any help.
> 
> Thanks
> 
> Brian
> 
> 
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[PyOpenGL-Users] Problems

[Brian Debuire <debuirebrian@ho...>]

<html><div style='background-color:'><DIV class=RTE>Hi,</DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE>I have a problem running PyOpenGL, i get a message "Abnormal program termination" when i run any PyOpenGL app.</DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE>I have installed all the requierements but Glut, because i dont know how to install it, i have the .dll and the .lib and so, but where should i put those????</DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE>I am very lost here, and i will apreciate any help.</DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE>Thanks</DIV>
<DIV class=RTE>&nbsp;</DIV>
<DIV class=RTE>Brian</DIV></div><br clear=all><hr>Protect your PC - <a href="http://g.msn.com/8HMBEN/2755??PS=47575">Click here</a> for McAfee.com VirusScan Online </html>

Re: [PyOpenGL-Users] bug: glVertex2fv(None) segfaults

[Mike C. Fletcher <mcfletch@ro...>]

Okay, I've added a check typemap for this that appears to solve the 
problem.  Looking at the code, I can see at least a few more instances 
where Tarn wasn't checking for array-size/non-null conditions, so 
there's at least a few more situations like this that will arise.  For 
now, anything which is defined as having "sometype *v" as it's signature 
is getting void-checked and raising an error on that condition.

Why didn't I just modify the conversion routine?

    There may be situations where the declaration *shouldn't* be
    null-checked (that is, where NULL is a valid input), i.e. the fix
    may actually break some code and making it easy to fix those
    situations requires that the conversion routine not include the
    checking support.  The entire OpenGLContext test suite passes (at
    least, runs as expected) with the changes, so it seems to work in
    the common cases, anyway.

As a note, introducing this finally explained a long-standing bug with a 
test-script, namely that a missing combine callback to GLU's 
tessellation mechanism was returning a None, so was passing a NULL 
pointer to gluVertex2fv.

Thanks for the report,
Mike

Maciej Kalisiak wrote:

>Quick disclaimer: I haven't updated my PyOpenGL in some time; version file
>shows 2.0.1.03.  Alas, updating right now is not an option (lack of time,
>especially if upgrade doesn't go smoothly)
>
>I've noticed that glVertex2fv, and quite possibly the other vector forms of
>glVertex, do not handle gracefully the case when they are (erroneously) handed
>"None" instead of an actualy vector/sequence.  I get a segfault; an exception
>(i.e., arg checking code) would be much more helpful.
>
>It could be that this is fixed in the latest versions of pyopengl, which I
>haven't tried, but I'm mailing this on the off chance that it isn't... it seems
>to me to be a rather rare bug, hence likely still present.
>  
>
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

Re: [PyOpenGL-Users] glut32 not found

[Mike C. Fletcher <mcfletch@ro...>]

enrike wrote:

> hi
>
> i have been installling and uninstalling python and all the modules on 
> my XP machine and now i am getting an error when i try to import GLUT. 
> It says it cannot find it. i have downloaded it and placed it on 
> windows/system32 but then i get another error suggesting this maight 
> not be the right glut32.dll i should be using.

You'll want to be using GLUT 3.7(.6), probably the Win32 binary release 
pointed to by the installation page.  If you can post the actual error 
messages it would be far more likely that we I can help diagnose and 
solve the problem.

I'm assuming you're using the binary release on Python 2.3 with PyOpenGL 
2.0.1.08, if not, let me know (generally speaking, when asking these 
kinds of questions it's very useful to give as much information as 
possible about your software setup).

Good luck,
Mike

________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

[PyOpenGL-Users] lack of -L/usr/X11R6/lib when building

[Huw Lynes <huw-l@mo...>]

I'm currently trying to build PyOpenGL 2.0.1.08 on a RedHat 7.2 box against
Python-2.3.4 . I've already installed several big packages like PIL and
Numeric Python so I'm pretty sure that my Python setup is OK.

when doing "python setup.py build" I get the following error:

gcc -pthread -shared build/temp.linux-i686-2.3/src/Togl-1.6/togl.o -L/usr/lib
-L/usr/lib -Lbuild/temp.linux-i686-2.3 -L/usr/lib -L/usr/lib
-Lbuild/temp.linux-i686-2.3 -lGL -lX11 -lXext -lGLU -lXmu -lXt -lm -ltcl8.3
-ltk8.3 -linterface_util -o build/Togl-1.6-tk8.3/Togl.so
/usr/bin/ld: cannot find -lX11
collect2: ld returned 1 exit status
error: command 'gcc' failed with exit status 1

libX11.so is under /usr/X11R6/lib 

config/linux.cfg contains the line:

library_dirs=/usr/lib:/usr/local/lib:/usr/X11/lib:/usr/X11R6/lib

so I would have expected to see -L/usr/X11R6/lib and -L/usr/X11/lib amongst
the gcc options but they were not there. The fact that -L/usr/lib is repeated
over and over again is making me suspicious that something nasty has happened.

Does anyone have any ideas about how I can start tracking down what is going
on?

Thanks,
Huw 

-- 
| Huw Lynes               | The Moving Picture Company  |
| System Administrator    | 127 Wardour Street          |
|.........................| London, W1F 0NL             | 

Re: [PyOpenGL-Users] Display Text

[Mike C. Fletcher <mcfletch@ro...>]

OpenGLContext/scenegraph/text/wxfont.py

has code for using wxPython to create aliased (i.e. non-antialiased)
bitmap fonts. wxPython doesn't AFAIK allow for extracting font outlines,
so for that you'd need to use something like the fonttools fonts in:

OpenGLContext/scenegraph/text/toolsfont.py

which uses TTFQuery/FontTools to extract font outlines from .ttf files.

You can also use GLUT fonts in a wxPython context, btw.

HTH,
Mike

Frank Chen wrote:

> Hi:
> Is there any example to display text with wxPython?
> To use bitmap font?
> To use outline font?

________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://www.vrplumber.com
  http://blog.vrplumber.com

[PyOpenGL-Users] Display Text

[Frank Chen <jsfrank.chen@ms...>]

Hi:

Is there any example to display text with wxPython?
To use bitmap font?
To use outline font?