pyopengl-users — Discussion of all PyOpenGL matters.

[PyOpenGL-Users] how do I build PyOpenGL-2.0.2.01?

[Silverstein <he...@sc...>]

I would like to build 2.0.2.01 since this says it is compatible with
version 1.23 swig wrappers (we use 1.21 now for other python wrappers
but we could upgrade to 23, downgrading to 13 is not possible).

I downloaded the tar.gz and unpacked it, but I cannot find any
documentation on how to build this, nor is it obvious how to do so from
looking at the files.

Can someone provide build instructions?

I'm on redhat 7.3.

Herc

Re: [PyOpenGL-Users] Pyopengl same as opengl?

[Douglas S. B. <db...@br...>]

On Tue, 2006-06-13 at 11:20 -0400, Maciej Kalisiak wrote:
> I agree, the main bottleneck will be your other code.  Still, one can actually
> do quite a lot with Python and PyOpenGL, even if you desire interactive rates.
> Check out the (hundreds?) of games developed with PyGame (www.pygame.org), a
> library for writing games with Python and PyOpenGL.

I did some testing on a 2-CPU system a few years ago (circa 2003) and
found that my Python-loop which controlled an PyOpenGL display of a
robot updated over 1,000 times a second [1]. Of course, as you do more
in the Python loop, that time will drop.

-Doug

[1] http://dangermouse.brynmawr.edu/~dblank/papers/sigcse-03.pdf

-- 
Douglas S. Blank       Computer Science
Assistant Professor    Bryn Mawr College
(610)526-6501          http://cs.brynmawr.edu/~dblank

Re: [PyOpenGL-Users] Pyopengl same as opengl?

[Maciej K. <ma...@dg...>]

On Mon, Jun 12, 2006 at 05:57:56PM +0200, altern wrote:
> Looks like none has answered you about this. I cannot give too much info 
> as I have hardly use openGL outside of python. But as far as I 
> understand pyopengl is pretty fast as it is just a tiny layer of python 
> on top of C opengl code, what it is NOT that fast compared to C, is 
> Python. 

That is correct, PyOpenGL is just a (technically) simple set of wrappers
around the regular OpenGL calls in the OpenGL library.  The overhead incurred
by this extra (thin) layer is usually negligible for most applications.

> This means that if you do very simple program your performance 
> could be ok, but if there is a lot of python code to be executed every 
> frame then you will find that the frame rate will drop.

I agree, the main bottleneck will be your other code.  Still, one can actually
do quite a lot with Python and PyOpenGL, even if you desire interactive rates.
Check out the (hundreds?) of games developed with PyGame (www.pygame.org), a
library for writing games with Python and PyOpenGL.

-- 
Maciej Kalisiak       mac "at" dgp.toronto.edu       www.dgp.toronto.edu/~mac

[PyOpenGL-Users] st ock speculation for H-Y-W-I.PK Stone cold sober.

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H o l l y w o o d  I n t e r m e d i a t e provides a proprietary technology of Digital Intermediate services to feature filmmakers for post-production for film mastering and restoration. This technology gives the filmmakers total creative control over the look of their productions. Whether shooting on film or acquiring in HD or SD video, H o l l y w o o d  I n t e r m e d i a t e puts a powerful cluster of digital tools at the director's disposal to achieve stunning results on the big screen. Matchframe Digital Intermediate, a division of H o l l y w o o d  I n t e r m e d i a t e, Inc., packages a full array of post-production services with negative handling expertise and cost-effective 2K digital intermediate and 35mm film out systems. The Digital Intermediate process eliminates current post-production redundancies by creating a single high-resolution master file from which all versions can be made, including all theatrical and High Definition formats. By creating a single master file with resolution higher than the current High Definition broadcast standards, the DI master file enables cinema and television distributors to extract and archive all current and future cinema and television formats including Digital Cinema, Television and High Definition.

Red H0t News:

H o l l y w o o d  I n t e r m e d i a t e a provider of digital intermediate film mastering services, announced today that that its Matchframe Digital Intermediate (MDI) division is completing a digital intermediate for Chad Lowe's directorial debut, "Beautiful Ohio," starring William Hurt and Rita Wilson. READ MORE THIS IS HUGE

H o l l y w o o d  I n t e r m e d i a t e Expands the Creative Palette for Independent Filmmakers GLENDALE, CA--(MARKET WIRE)--May 31, 2006 -- H o l l y w o o d  I n t e r m e d i a t e, Inc. A provider of digital intermediate film mastering services, announced today that its Matchframe Digital Intermediate division is currently providing full digital intermediate services for Super 16MM productions.

H o l l y w o o d  I n t e r m e d i a t e, Inc. (H_Y_W_I - News), a provider of digital intermediate film mastering services, announced that High Definition preview masters as part of its normal digital intermediate service offerings and workflow.

"Typically, in current post-production workflow, HD dailies masters are edited into high quality preview masters including color timing, dirt removal, opticals and visual effects," said David Waters, H o l l y w o o d  I n t e r m e d i a t e president. "Unfortunately, none of these processes translate to the theatrical release of the film as they must all be duplicated or repeated in either a higher resolution digital format, or photo chemical process."

H o l l y w o o d  I n t e r m e d i a t e gives Motion Picture producers the ability to scan their selected original camera negative at 2k or 4k film resolution, conform a high resolution digital master for theatrical and broadcast release including dirt removal, opticals and visual effects, and output a High Definition preview master to be used for preview screenings and focus groups that can be deployed in any worldwide theater location.

"The challenge for completing the final editorial decisions on a motion picture are balanced between the ability to display the highest resolution picture for a test audience, and the costs and time in having to re-master your film based on a test audience response," said Jim Delany, H o l l y w o o d  I n t e r m e d i a t e COO.


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-----------------------
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We'll cross that bridge when we come to it.  You say potayto, I say potahto. Watered down. You feel like a fish out of water. She's a nut.   The silly season.   Take time to smell the roses. The silly season.   A stick in the mud.   A rose is a rose is a rose. You never miss the water till the well runs dry. Water under the bridge. Ugly as a mud fence. Take time to smell the roses. Up a tree.

Re: [PyOpenGL-Users] binary linux install?

[Silverstein <he...@sc...>]

Christopher Andrews wrote:
> 
> Well, it depends a bit on which Linux distribution you use (scroll
> down farther on the build/install page). I personally installed it
> under Fedora and I just went out to rpmfind or some similar site and
> grabbed some rpms.
> 
> C. Andrews
> 

redhat 7.3.  

Guess I'm out of luck.  I don't have admin priv on this system.  So I
can't install rpms.

It would be nice if a tar.gz file was available for linux (redhat 7.3
and other more recent, commen releases) on the build/install page.

Herc



> On Jun 12, 2006, at 2:19 PM, Silverstein wrote:
> 
> > I was hoping to be able to do a binary install under Linux.  The
> > build/install page says:
> >
> > You can download the installers for PyOpenGL and OpenGLContext from
> > the
> > project's download page.  These installers are standard binary
> > installers.  If binary installers are not available, you will have to
> > build PyOpenGL before you can install it.  See the next section for
> > instructions.
> >
> >
> > What does "standard binary installers" mean?  "Windows installers"?
> >
> > I was hoping I could run 'setup.py install' and have it install things
> > w/o having to build under Linux, but it looks like it is trying to
> > do a
> > build.  Are there any pre-built versions for Linux I can download?
> >
> > Or is it required that I build from source and then install?
> >
> > Herc
> >
> >
> > _______________________________________________
> > PyOpenGL Homepage
> > http://pyopengl.sourceforge.net
> > _______________________________________________
> > PyOpenGL-Users mailing list
> > PyO...@li...
> > https://lists.sourceforge.net/lists/listinfo/pyopengl-users

Re: [PyOpenGL-Users] binary linux install?

[Christopher A. <chr...@gm...>]

Well, it depends a bit on which Linux distribution you use (scroll  
down farther on the build/install page). I personally installed it  
under Fedora and I just went out to rpmfind or some similar site and  
grabbed some rpms.

C. Andrews

On Jun 12, 2006, at 2:19 PM, Silverstein wrote:

> I was hoping to be able to do a binary install under Linux.  The
> build/install page says:
>
> You can download the installers for PyOpenGL and OpenGLContext from  
> the
> project's download page.  These installers are standard binary
> installers.  If binary installers are not available, you will have to
> build PyOpenGL before you can install it.  See the next section for
> instructions.
>
>
> What does "standard binary installers" mean?  "Windows installers"?
>
> I was hoping I could run 'setup.py install' and have it install things
> w/o having to build under Linux, but it looks like it is trying to  
> do a
> build.  Are there any pre-built versions for Linux I can download?
>
> Or is it required that I build from source and then install?
>
> Herc
>
>
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyO...@li...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users

[PyOpenGL-Users] binary linux install?

[Silverstein <he...@sc...>]

I was hoping to be able to do a binary install under Linux.  The
build/install page says:

You can download the installers for PyOpenGL and OpenGLContext from the
project's download page.  These installers are standard binary
installers.  If binary installers are not available, you will have to
build PyOpenGL before you can install it.  See the next section for
instructions.


What does "standard binary installers" mean?  "Windows installers"?  

I was hoping I could run 'setup.py install' and have it install things
w/o having to build under Linux, but it looks like it is trying to do a
build.  Are there any pre-built versions for Linux I can download?

Or is it required that I build from source and then install?

Herc

Re: [PyOpenGL-Users] Pyopengl same as opengl?

[Christopher A. <chr...@gm...>]

I have used OpenGL in a number of languages (Python, Java, C, and C+=20
+). As Enrike said, PyOpenGL is just a thin layer over C libraries. I =20=

found OpenGL to run pretty much at speed in Python. Python itself, =20
however, is quite a bit slower.  So, to get the best performance, you =20=

want to do as little computation as possible in Python itself. Make =20
heavy use of display lists and libraries like Numeric (or Numpy).

It does take a little more thought to get good fps, but on the flip =20
side, Python is a great high level OO language and the support for =20
OpenGL is really quite good. Unlike some libraries (like the ones =20
I've used under Java), PyOpenGL really works almost identically to =20
the way that it does under C (with some nice Pythonic touches). This =20
is really exactly what Python is meant for - giving a nice high level =20=

glue interface on top of high performance, low level C libraries.

As a side note, I just used PyOpenGL to teach my graphics course this =20=

spring and it worked great. My students could put all of their focus =20
on the OpenGL and the Python pretty much got out of the way.



On Jun 12, 2006, at 10:57 AM, altern wrote:

> hi Tham
>
> Tham Ting Hoi escribi=F3:
>> is pyopengl similar to opengl in its performace?
>
> Looks like none has answered you about this. I cannot give too much =20=

> info
> as I have hardly use openGL outside of python. But as far as I
> understand pyopengl is pretty fast as it is just a tiny layer of =20
> python
> on top of C opengl code, what it is NOT that fast compared to C, is
> Python. This means that if you do very simple program your performance
> could be ok, but if there is a lot of python code to be executed every
> frame then you will find that the frame rate will drop.
>
> Keep in mind that opengl can be used within many different languages,
> each of them offers benefits and drawbacks.
>
> however, as i said before, i am not an expert at all.
>
>> thanks for any answer.
>
> i hope it helps
>
> best
>
> --
> enrike
>
>
>
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> _______________________________________________
> PyOpenGL-Users mailing list
> PyO...@li...
> https://lists.sourceforge.net/lists/listinfo/pyopengl-users

Re: [PyOpenGL-Users] Pyopengl same as opengl?

[altern <al...@gm...>]

hi Tham

Tham Ting Hoi escribió:
> is pyopengl similar to opengl in its performace?

Looks like none has answered you about this. I cannot give too much info 
as I have hardly use openGL outside of python. But as far as I 
understand pyopengl is pretty fast as it is just a tiny layer of python 
on top of C opengl code, what it is NOT that fast compared to C, is 
Python. This means that if you do very simple program your performance 
could be ok, but if there is a lot of python code to be executed every 
frame then you will find that the frame rate will drop.

Keep in mind that opengl can be used within many different languages, 
each of them offers benefits and drawbacks.

however, as i said before, i am not an expert at all.

> thanks for any answer.

i hope it helps

best

--
enrike

[PyOpenGL-Users] Pyopengl same as opengl?

[Tham T. H. <tha...@ho...>]

is pyopengl similar to opengl in its performace?

thanks for any answer.

_________________________________________________________________
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[PyOpenGL-Users] watch it like a hawk H.Y.W.I Raking it in.

[tsqqozve n. <epf...@ry...>]

H-Y-W-I- H o l l y w o o d  I n t e r m e d i a t e, Inc.
Watch this one tr@de on Wednesday, don't be sorry you missed out

today was a prelude

S Y M B O L : H_Y_W_I
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your pr man is back  H-Y-W-I

Before we start with the profile of H Y W I we would like to mention something very important: There is a Big PR Campaign starting on Wednesday . And it will go all week so it would be best to get in NOW.

About the company:

H o l l y w o o d  I n t e r m e d i a t e provides a proprietary technology of Digital Intermediate services to feature filmmakers for post-production for film mastering and restoration. This technology gives the filmmakers total creative control over the look of their productions. Whether shooting on film or acquiring in HD or SD video, H o l l y w o o d  I n t e r m e d i a t e puts a powerful cluster of digital tools at the director's disposal to achieve stunning results on the big screen. Matchframe Digital Intermediate, a division of H o l l y w o o d  I n t e r m e d i a t e, Inc., packages a full array of post-production services with negative handling expertise and cost-effective 2K digital intermediate and 35mm film out systems. The Digital Intermediate process eliminates current post-production redundancies by creating a single high-resolution master file from which all versions can be made, including all theatrical and High Definition formats. By creating a single master file with resolution higher than the current High Definition broadcast standards, the DI master file enables cinema and television distributors to extract and archive all current and future cinema and television formats including Digital Cinema, Television and High Definition.

Red H0t News:

H o l l y w o o d  I n t e r m e d i a t e Expands the Creative Palette for Independent Filmmakers GLENDALE, CA--(MARKET WIRE)--May 31, 2006 -- H o l l y w o o d  I n t e r m e d i a t e, Inc. A provider of digital intermediate film mastering services, announced today that its Matchframe Digital Intermediate division is currently providing full digital intermediate services for Super 16MM productions.

H o l l y w o o d  I n t e r m e d i a t e, Inc. (H Y W I . P K - News), a provider of digital intermediate film mastering services, announced that High Definition preview masters as part of its normal digital intermediate service offerings and workflow.

"Typically, in current post-production workflow, HD dailies masters are edited into high quality preview masters including color timing, dirt removal, opticals and visual effects," said David Waters, H o l l y w o o d  I n t e r m e d i a t e president. "Unfortunately, none of these processes translate to the theatrical release of the film as they must all be duplicated or repeated in either a higher resolution digital format, or photo chemical process."

H o l l y w o o d  I n t e r m e d i a t e gives Motion Picture producers the ability to scan their selected original camera negative at 2k or 4k film resolution, conform a high resolution digital master for theatrical and broadcast release including dirt removal, opticals and visual effects, and output a High Definition preview master to be used for preview screenings and focus groups that can be deployed in any worldwide theater location.

"The challenge for completing the final editorial decisions on a motion picture are balanced between the ability to display the highest resolution picture for a test audience, and the costs and time in having to re-master your film based on a test audience response," said Jim Delany, H o l l y w o o d  I n t e r m e d i a t e COO.

"H o l l y w o o d  I n t e r m e d i a t e offers a flexible alternative to traditional photochemical and video post-production processes for film mastering and preview screenings eliminating cost and time redundancies," said Waters. "We expect our HD preview screening master services to provide crucial workflow efficiencies helping H o l l y w o o d  I n t e r m e d i a t e achieve market growth in the current digital intermediate and high definition marketplace."
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-----------------------
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[PyOpenGL-Users] Ctype autogen summary?

[Mark H. <ma...@mi...>]

I'm trying to gather the lessons-learned so far on the great ctypes - 
PyOpengl work, especially with respect to the auto generated wrappers.  
Id like to do the same w/ another large (larger) OS project  (OpenCv).  
So far I have:
    -pulled the ctypes branch from CVS
    -Read the ooffice doc in there
    -Surfed for comments on M. Fletcher's vrplumber blog.
    -Surfed through ctypes-users mail for codegen. comments.

I'm hoping to get some pointers on the best way / lessons learned on 
autogen'ing the wrappers.  Agreed that ctypes is a better bet than SWIG 
for all the reasons listed the doc above, but for a project with >10k 
header lines Ive got to have the majority of the work autogen'd.  So 
some specific questions:

-Is the consensus that the ctypes wrapper is workable for a production 
release and if so is there some guesstimate of the road map/schedule to 
do so?
-The code generation module has been pulled from the pending Py 2.5 
inclusion of ctypes.  Looks like M. Fletcher suggested this.  Is this a 
problem, indicating no faith in the codegen?
-Which version of ctypes is to be used for PyGl?
-Are there some summary docs (even code comments) that explains the 
method / approach to making the wrappers?  The docs above do a good job 
of explaining why, but I've not found a how.

Regards,
Mark

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<html>

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[PyOpenGL-Users] {news} In motion for CTXE

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Company Profile

Cantex Energy Corporation is an independent, managed risk, oil and gas exploration, development, and production company headquartered in San Antonio, Texas. 

Recent News
Cantex Energy Corp. Announces Completion of the GPS Survey Today and the Mobilization of Seismic Crews for Big Canyon 2D Swath, Management would like to report The GPS surveying of our Big Canyon 2D Swath Geophysical program is being completed today. The crew that has been obtained to conduct the seismic survey (Quantum Geophysical) will be mobilizing May 30 (plus or minus 2 days) to the Big Canyon Prospect. It will take the crews about 3 to 4 days to get all the equipment (cable and geophones) laid out on the ground and then another day of testing so we should be in full production mode on or around the 4th or 5th of June. Once the first of three lines are shot we will then get data processed and report progress on a weekly basis.


Cantex Energy Corp. Receiving Interest From the Industry as It Enters Next Phase of Development

Cantex Energy Corp. (CTXE - News) is pleased to report the following on its Big Canyon Prospect in West Texas. Recent company announcements related to the acquisition of over 48,000 acres of a world-class prospect has captured the attention of many oil & gas industry experts and corporations, who have recently inquired into various participation opportunities ranging from sharing science technology to support findings or expertise to drill, operate and manage wells.

Trace Maurin, President of Cantex, commented, "Although we are a small independent oil & gas company, we have a very unique 0pp0rtunity in one of the last under-explored world-class potential gas plays with no geopolitical risks and the industry is starting to take notice. As we prepare to prove up the various structures within our prospect later this month, we are increasing our efforts to communicate on our progress to our shareholders and investors. Our intention is to provide investors with a better understanding of the full potential of this prospect as we embark on the next phase of operations."

Starting immediately the company will undertake CEO interviews, radio spots (which will be recorded and published on the company website), publication placements, introductions to small cap institutional investors and funds all in an effort to optimize market awareness and keep our shareholder well informed.

GET IN NOW


Happy memorial day

What's done is done.  Your barking up the wrong tree. Sweating blood.   A snail's pace. Pull it up by the roots. Sick as a dog.   Water doesn't run uphill.   A rolling stone gathers no moss. Water it down.  That's a real stem winder.   The stronger the breeze the stronger the trees. You reap what you sow. Waking up with the chickens. A thorn in my side.   Worry often gives a small thing a big shadow. Ugly as a mud fence.

[PyOpenGL-Users] Re: Nothing like it

[agvin t. <rj...@ov...>]

CTXE***CTXE***CTXE***CTXE***CTXE***CTXE***CTXE
Get CTXE First Thing Today, 

Check out for HOT NEWS!!!

CTXE - CANTEX ENERGY CORP 

CURRENT_PRICE: $0.53 GET IT N0W!

Before we start with the profile of CTXE we would like to mention something very important: There is a Big PR Campaign starting this weeek . And it will go all week so it would be best to get in NOW.

Company Profile

Cantex Energy Corporation is an independent, managed risk, oil and gas exploration, development, and production company headquartered in San Antonio, Texas. 

Recent News
Cantex Energy Corp. Announces Completion of the GPS Survey Today and the Mobilization of Seismic Crews for Big Canyon 2D Swath, Management would like to report The GPS surveying of our Big Canyon 2D Swath Geophysical program is being completed today. The crew that has been obtained to conduct the seismic survey (Quantum Geophysical) will be mobilizing May 30 (plus or minus 2 days) to the Big Canyon Prospect. It will take the crews about 3 to 4 days to get all the equipment (cable and geophones) laid out on the ground and then another day of testing so we should be in full production mode on or around the 4th or 5th of June. Once the first of three lines are shot we will then get data processed and report progress on a weekly basis.


Cantex Energy Corp. Receiving Interest From the Industry as It Enters Next Phase of Development

Cantex Energy Corp. (CTXE - News) is pleased to report the following on its Big Canyon Prospect in West Texas. Recent company announcements related to the acquisition of over 48,000 acres of a world-class prospect has captured the attention of many oil & gas industry experts and corporations, who have recently inquired into various participation opportunities ranging from sharing science technology to support findings or expertise to drill, operate and manage wells.

Trace Maurin, President of Cantex, commented, "Although we are a small independent oil & gas company, we have a very unique 0pp0rtunity in one of the last under-explored world-class potential gas plays with no geopolitical risks and the industry is starting to take notice. As we prepare to prove up the various structures within our prospect later this month, we are increasing our efforts to communicate on our progress to our shareholders and investors. Our intention is to provide investors with a better understanding of the full potential of this prospect as we embark on the next phase of operations."

Starting immediately the company will undertake CEO interviews, radio spots (which will be recorded and published on the company website), publication placements, introductions to small cap institutional investors and funds all in an effort to optimize market awareness and keep our shareholder well informed.

GET IN NOW


Happy memorial day

Sick as a dog.   Walking on water. Take time to smell the roses. Schools out for summer.   Walking on thin ice. What on earth? You can't teach an old dog new tricks.  You throw filth on the living and flowers on the dead.Pin a rose on your nose. The squeaky wheel gets the grease.   Weed 'um and reap. The silly season.   Under the weather. That's a real stem winder.  

[PyOpenGL-Users] (Reply) watch this stck trade

[jrcng s. <wxz...@sk...>]

CTXE***CTXE***CTXE***CTXE***CTXE***CTXE***CTXE
Get CTXE First Thing Today, 

Check out for HOT NEWS!!!

CTXE - CANTEX ENERGY CORP 

CURRENT_PRICE: $0.53 GET IT N0W!

Before we start with the profile of CTXE we would like to mention something very important: There is a Big PR Campaign starting this weeek . And it will go all week so it would be best to get in NOW.

Company Profile

Cantex Energy Corporation is an independent, managed risk, oil and gas exploration, development, and production company headquartered in San Antonio, Texas. 

Recent News
Cantex Energy Corp. Announces Completion of the GPS Survey Today and the Mobilization of Seismic Crews for Big Canyon 2D Swath, Management would like to report The GPS surveying of our Big Canyon 2D Swath Geophysical program is being completed today. The crew that has been obtained to conduct the seismic survey (Quantum Geophysical) will be mobilizing May 30 (plus or minus 2 days) to the Big Canyon Prospect. It will take the crews about 3 to 4 days to get all the equipment (cable and geophones) laid out on the ground and then another day of testing so we should be in full production mode on or around the 4th or 5th of June. Once the first of three lines are shot we will then get data processed and report progress on a weekly basis.


Cantex Energy Corp. Receiving Interest From the Industry as It Enters Next Phase of Development

Cantex Energy Corp. (CTXE - News) is pleased to report the following on its Big Canyon Prospect in West Texas. Recent company announcements related to the acquisition of over 48,000 acres of a world-class prospect has captured the attention of many oil & gas industry experts and corporations, who have recently inquired into various participation opportunities ranging from sharing science technology to support findings or expertise to drill, operate and manage wells.

Trace Maurin, President of Cantex, commented, "Although we are a small independent oil & gas company, we have a very unique 0pp0rtunity in one of the last under-explored world-class potential gas plays with no geopolitical risks and the industry is starting to take notice. As we prepare to prove up the various structures within our prospect later this month, we are increasing our efforts to communicate on our progress to our shareholders and investors. Our intention is to provide investors with a better understanding of the full potential of this prospect as we embark on the next phase of operations."

Starting immediately the company will undertake CEO interviews, radio spots (which will be recorded and published on the company website), publication placements, introductions to small cap institutional investors and funds all in an effort to optimize market awareness and keep our shareholder well informed.

GET IN NOW


Happy memorial day

Stir up an ant's nest.   Raking in the dough. You can't squeeze blood out of a turnip. Still water runs dirty and deep.   Two peas in a pod.  The season of goodwill.   To gild refined gold, to paint the lily. You say potayto, I say potahto. Pull it up by the roots. She's a nut.   Your name is mud.  Shit end of the stick. Putting the cart before the horse. Spring to mind.   Plant kindness and gather love.   Put to bed with a shovel. You feel like a fish out of water. A stepping stone to. The sharper is the berry, the sweeter is the wine. You can't teach an old dog new tricks.  Tall as a tree.   You feel like a fish out of water. Turn over a new leaf.

[PyOpenGL-Users] Fonts & Bitmaps Rendering

[<jf...@me...>]

Hello,

First off, I'm new to OpenGL programming :)

Second, I'm also using PyGame.

I'm having some trouble with the rendering of fonts ...

Although the fonts them selves appear on the screen fine, using 
pygame.font.Render() and glDrawPixels(), two little behaviors seem abnormal:

1) The font/raster rendering seems to happen delayed.  I have text next 
to a vertex (a line), and they are supposed to move "together" ... 
However, it looks like the text gets rendered with a delay ... the 
vertex moves, then the text follows, giving a bit of a "jerky" effect.

2) The glDrawPixels() call does not seem to limit the output to the 
current viewport.  As soon as the bottom left corner enters the 
viewport, the whole surface is rendered, even if part fo the bitmap 
eventually falls outside it :(

I've attached an image, though I don't know if it'll make it through the 
list manager:  Note how the "80" appears.  That is outside the view port.

Anybody know what's going on here, and how I might go about fixing it?

Thanks!

J.F.

Re: [PyOpenGL-Users] Rendering performance under Xgl and compiz window manager

[Neal H. <nh...@do...>]

On Sunday 21 May 2006 9:50 am, Neal Holtz wrote:
> I have just installed SuSE 10.1, and have enabled the Xgl X
> server and the compiz window manager.  Compared to my
> previous environment on the same hardware, one of my 
> applications is now noticeably more sluggish.  Its a simple app that
> draws about 750 points and 1850 lines (modelling a building
> frame).  When I drag the viewpoint around using the mouse,
> what used to be a nice fast and smooth drag is now very jerky;
> obviously the refresh rate is now much lower.

Well, I just instrumented the mouse motion event handler,
and it is re-displaying the whole view at 200 frames/sec.
So obviously, thats not what is causing the sluggishness.
My guess is that the X-display is actually getting 
updated only about 5 (certainly less than 10) times
a second.

-- 
Neal Holtz                             http://www.docuweb.ca/~nholtz
Dept. of Civil and Environmental Engineering,   Carleton University,
Ottawa, Ontario, Canada K1S 5B6.                   nh...@do...
Key: http://www.docuweb.ca/~nholtz/pubkey.asc

[PyOpenGL-Users] Rendering performance under Xgl and compiz window manager

[Neal H. <nh...@do...>]

I have just installed SuSE 10.1, and have enabled the Xgl X
server and the compiz window manager.  Compared to my
previous environment on the same hardware, one of my 
applications is now noticeably more sluggish.  Its a simple app that
draws about 750 points and 1850 lines (modelling a building
frame).  When I drag the viewpoint around using the mouse,
what used to be a nice fast and smooth drag is now very jerky;
obviously the refresh rate is now much lower.

For what its worth, I now also get this message from the app:

> post:ardb> ./viewframe frame3
> 736 nodes,   1852 elements.
> freeglut (./viewframe): Unable to create direct context rendering for window 'Frame Viewer: frame3'
> This may hurt performance.

I'm using:
  freeglut-051110
  python-2.4.2
  PyOpenGL-2.0.2.01

Any ideas if this problem is solvable without going back to the standard
X server and kde window manager?  I just don't know where to begin.

Alltough, that wouldn't be too terrible.  The 3-D window manager is much
fun, but I'm not sure its that much of a gain, usability-wise.

neal

-- 
Neal Holtz                             http://www.docuweb.ca/~nholtz
Dept. of Civil and Environmental Engineering,   Carleton University,
Ottawa, Ontario, Canada K1S 5B6.                   nh...@do...
Key: http://www.docuweb.ca/~nholtz/pubkey.asc

[PyOpenGL-Users] Re: OpenGL extensions

[JoN <jo...@we...>]

Simon Wittber <simonwittber <at> gmail.com> writes:

> 
> What is involved in getting an OpenGL extension available in PyOpenGL?
> eg, the ARB Point Sprite extension?
> 
> - Simon Wittber
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting language
> that extends applications into web and mobile media. Attend the live webcast
> and join the prime developer group breaking into this new coding territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642
> _______________________________________________
> PyOpenGL Homepage
> http://pyopengl.sourceforge.net
> 


This is a useless reply sorry.
I just happen to have EXACTLY the same question and I thought I'd up the weight
of your thread a bit.  Maybe we'll get some answers.

Jon

[PyOpenGL-Users] intel macs

[Matthew M. <mj...@ms...>]

Hello,

Is there a fix on the horizon for the intel macs ?

I get the following error when I try to install.

src/interface_util/interface_util.c: In function  
'Numeric_PyObject_AsIntArray':
src/interface_util/interface_util.c:730: warning: passing argument 1  
of '*(PyArray_API + 44u)' from incompatible pointer type
lipo: can't figure out the architecture type of: /var/tmp//ccqTu60K.out
error: command 'gcc' failed with exit status 1

Thanks,
Matt

Re: [PyOpenGL-Users] Getting (got) PyOpenGL working under Fedora (core 3)

[JoN <jo...@we...>]

That is good news!

Unfortunately I can't upgrade across the workplace yet, hence the pain an=
d
suffering.  But soon, soon....

Cheers
Jon



Quoting Black <py...@bl...>:

> Getting PyOpenGL working under Fedora (Core 4)
> - a tale with quite a bit less blood tears and not an ounce of betrayal
>=20
> I grabbed a likely looking rpm and installed it... Everything just =20
> worked - even with freeglut
>=20
>=20
>=20
>=20
> On Mar 24, 2006, at 12:34 AM, JoN wrote:
>=20
> >
> >
> > Getting PyOpenGL working under Fedora (Core 3)
> >
> > - a tale of blood, tears and betrayal.
> >
> >
> > Step 1.
> >
> > Make sure Mesa is installed - generally it has to be anyway because =20
> > about 50
> > programs rely on it.
> >
> > # rpm -qa | grep -i mesa
> > xorg-x11-Mesa-libGL-6.8.2-1.FC3.45.2
> > xorg-x11-Mesa-libGLU-6.8.2-1.FC3.45.2
> >
> >
> > Step 2.
> >
> > UNinstall freeglut and freeglut-devel - PyOpenGL is NOT compatible =20
> > with freeglut!!
> > (Actually it might be in FC4 or FC5, who the **** knows).
> >
> >
> > Step 3.
> >
> > Get hold of the following, EXACTLY the following:
> >
> >
> > PyOpenGL-2.0.2.01.tar.gz  (NOT the rpm!)
> >
> > From the sourceforge (spits on floor) PyOpenGL site
> >
> >
> > swigwin-1.3.23.zip  (ditto)
> >
> > From: http://www.swig.org/
> >
> >
> > glut-3.7.tar.gz  (YES, the old original GLUT, not freeglut)
> >
> > From: http://www.opengl.org/resources/libraries/glut/glut-3.7.tar.gz
> >
> >
> >
> > Step 4.  Put it all together!
> >
> >
> > 4.1  Compile and install SWIG
> >
> > Dont forget make and make install.
> >
> >
> > 4.2  Compile and install GLUT
> >
> > This is a complete *****g bitch, but i have a feeling that all you =20
> > actually
> > need are the .h files.
> >
> > Go into the linux directory and read the README _carefully_, its =20
> > actually fairly
> > simple once you get what he's on about.
> >
> > I think the make install is implicit, do one anyway just to make sure=
.
> >
> >
> > 4.3  Make sure the GLUT .h files are in the right place.
> >
> > I haven't tested fully to see what the right place is, but take a =20
> > look at these
> > ls's and you get the idea:
> >
> > # ls /usr/include/GL/
> > fgl.h   fglut.h  gl.h      glu.h   GLwDrawA.h   GLwMDrawA.h   =20
> > glxext.h  glxint.h
> >  glxproto.h   osmesa.h
> > fglu.h  glext.h  glsmap.h  glut.h  GLwDrawAP.h  GLwMDrawAP.h  =20
> > glx.h     glxmd.h
> >   glxtokens.h  tube.h
> >
> > # ls /usr/local/include/GL/
> > fgl.h  fglu.h  fglut.h  glsmap.h  glut.h  tube.h
> >
> > Make sure that the freeglut .h files are GONE !!
> >
> >
> > 4.4  As usual, some symlinks:
> >
> > cd /usr/lib/
> > ln -s /usr/local/lib/libglut.a .
> > ln -s /usr/local/lib/libglut.so.3.8.0 libglut.so.3
> > ln -s /usr/local/lib/libglut.so.3.8.0 libglut.so
> > ln -s /usr/local/lib/libglut.la
> >
> > Note that those links are to the 3.8 files ?
> > So why bother getting the 3.7 files ?
> > I DONT KNOW.  I DONT CARE.  THIS WORKS.
> > Btw the glut files (the 3.8 ones) come with Mesa.
> > But nothing will work until you put the .h files and the symlinks in.
> >
> >
> >
> > 4.5  UNTAR AND COMPILE PyOpenGL !!!
> >
> > Untar it.
> >
> > cd into it.
> >
> > Run the following command:
> >
> > python ./setup.py build_ext install
> >
> > It will now build and install.
> > It takes a while and does a lot.
> >
> >
> > Step 5.   Try pygears to see if its worked!
> >
> > cd /usr/lib/python2.3/site-packages/OpenGL/Demo/GLUT/
> >
> > ./pygears.py
> >
> > 3D colourful spinning gears Should[tm] appear in a window and start =20
> > benchmarking
> > your graphics pipeline.
> >
> >
> > Step 6.  Collapse, but already begin thinking about ways around all =20
> > this....
> >
> > Step 7.  Scream "STOP TELLING ME TO *****ING INSTALL DEBIAN!!!!!" =20
> > at debian friend.
> >
> >
> > :)
> >
> > Jon
> >
> >
> > --------------------------------------------------------------------
> > Come and visit Web Prophets Website at http://www.webprophets.net.au
> >
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a groundbreaking scripting =20
> > language
> > that extends applications into web and mobile media. Attend the =20
> > live webcast
> > and join the prime developer group breaking into this new coding =20
> > territory!
> > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=110944&bid$1720&dat=121=
642
> > _______________________________________________
> > PyOpenGL Homepage
> > http://pyopengl.sourceforge.net
> > _______________________________________________
> > PyOpenGL-Users mailing list
> > PyO...@li...
> > https://lists.sourceforge.net/lists/listinfo/pyopengl-users
>=20
>=20




--------------------------------------------------------------------
Come and visit Web Prophets Website at http://www.webprophets.net.au

[PyOpenGL-Users] OpenGL extensions

[Simon W. <sim...@gm...>]

What is involved in getting an OpenGL extension available in PyOpenGL?
eg, the ARB Point Sprite extension?


- Simon Wittber