SourceCity

On 4 June 2013 17:52, Alexandre Bergel <[hidden email]> wrote:

Yeah! 

It works (I guess). I had to use the right VM also. 

I obtain the attached screenshot. Apparently the background is not updated. Is this intended in your example? 

Seems so.. an opengl buffer is cleared by fully transparent color:
    gl
        clearColor_red: 1 green:  1 blue:  1 alpha: 0;
        clear: GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT.

then, when resulting image transferred back to Display form,
it only changes the pixels which is affected, but fully transparent ones will keep background unchanged.
The solution is to use opaque color(s) in opengl buffer,
or clear background by morph, before copying pixels from opengl buffer.

 

Cheers,

Alexandre

<Screen Shot 2013-06-04 at 11.51.13 AM.png>

On Jun 4, 2013, at 9:49 AM, Erwan Douaille <[hidden email]> wrote:

I attached a quick demo

GLTest new openInWorld


2013/6/4 Alexandre Bergel <[hidden email]>
Hi Igor,

Thanks for your help.
Unfortunately, I do not have much time to dive in the implementation. A student is asking me how he can use OpenGL in Pharo. I would like to give him a simple starting point

What would be a simple piece of code that simply open a cube on the screen? I cannot ask him to go and study SourceCity or the implementation of NBOpenGL. He barely knows Smalltalk but he is very smart.

So, how to show a cube on the screen please?

Cheers,
Alexandre


On Jun 4, 2013, at 4:32 AM, Igor Stasenko <[hidden email]> wrote:

> On 3 June 2013 21:06, Alexandre Bergel <[hidden email]> wrote:
>> How can I make sure that OpenGL works on my machine?
>
> You don't. It just works.
>
> The problem is that different hardware has different features supported.
> During initialization of context i checking + asking for some capabilities.
> Looks like your machine does not supports them fully, or
> initialization logic is flawed..
> Did you tried to use latest config of NBOpenGL on your machine?
>
>> What would be the hello world example in OpenGL in Pharo?
>>
>
> Anything which shows on screen, like drawing a triangle.
>
>> Cheers,
>> Alexandre
>
>> On Jun 3, 2013, at 7:27 AM, Igor Stasenko <[hidden email]> wrote:
>>
>>> On 3 June 2013 05:18, Alexandre Bergel <[hidden email]> wrote:
>>>> Osx 10.8.3
>>>>
>>>> Alexandre
>>>>
>>>
>>> It is strange.
>>> I checked things lately, NBOpenGL works fine on macs.
>>> But i seend that source city code has some modifications. Maybe that
>>> is the problem.
>>>
>>>> On Jun 2, 2013, at 10:29 PM, Igor Stasenko <[hidden email]> wrote:
>>>>
>>>>> On 3 June 2013 00:59, Alexandre Bergel <[hidden email]> wrote:
>>>>>> Where are such examples?
>>>>>> How can I try an example of OpenGl on my macbook?
>>>>>>
>>>>>> I've tried to execute "SourceCityGL new" and I got an error "No suitable implementation found for initializing OpenGL context for your platform". No idea why I got this. I have the same error when I try "GLTTRenderingDemo new"
>>>>>>
>>>>>> I am using Pharo 1.4 Summer. Do I have to install some libraries somewhere? I guess I have OpenGl installed on my mac.
>>>>>
>>>>> What OS version you running?
>>>>>
>>>>>>
>>>>>> Cheers,
>>>>>> Alexandre
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Jun 2, 2013, at 6:02 PM, Erwan Douaille <[hidden email]> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> 2013/6/2 Erwan Douaille <[hidden email]>
>>>>>>> it's okay, it happens since 2.0, just proceed
>>>>>>>
>>>>>>>
>>>>>>> 2013/6/2 Stephan Eggermont <[hidden email]>
>>>>>>>> This package depends on the following classes:
>>>>>>>> TTFontReader
>>>>>>>> TTFontDescription
>>>>>>>> TTGlyph
>>>>>>>
>>>>>>> And you will not be able to launch NBOpenGL examples. (Ask Igor about that stuff)
>>>>>>> Maybe you should try it on pharo 1.4
>>>>>>> Which configuration to use?
>>>>>>> (In Moose 4.8)
>>>>>>>
>>>>>>> Stephan
>>>>>>> _______________________________________________
>>>>>>> Moose-dev mailing list
>>>>>>> [hidden email]
>>>>>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Best regards,
>>>>>>>
>>>>>>> Douaille Erwan <[hidden email]>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Best regards,
>>>>>>>
>>>>>>> Douaille Erwan <[hidden email]>
>>>>>>> _______________________________________________
>>>>>>> Moose-dev mailing list
>>>>>>> [hidden email]
>>>>>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>>>>>
>>>>>> --
>>>>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>>>>> Alexandre Bergel  http://www.bergel.eu
>>>>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Best regards,
>>>>> Igor Stasenko.
>>>>
>>>> --
>>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>>> Alexandre Bergel  http://www.bergel.eu
>>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Best regards,
>>> Igor Stasenko.
>>
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel  http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>
>
>
> --
> Best regards,
> Igor Stasenko.

--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.




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-- 
Best regards,

Douaille Erwan <[hidden email]>

<GLTest.st>_______________________________________________

Moose-dev mailing list
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-- 
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

--
Best regards,
Igor Stasenko. _______________________________________________
Moose-dev mailing list
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Hi !

I manually loaded NBOpenGL from SmalltalkHub and SourceCity on moose 4.8, with the default vm proposed on moose's website and it works.

There is a sourcecity and GLTest example.

image.zip : https://www.dropbox.com/s/4v9m5eig7qs4xez/sourcecity.zip

vm : http://www.pharo-project.org/pharo-download/release-2-0

I tested it on win 8 64bit. It'll not work on linux. I don't know about mac os.

I will update the ConfigurationOfSourceCity, but i have to write my internship's report for the moment.

Sorry for the unexpected troubles

2013/6/6 Alexandre Bergel <[hidden email]>

+1

On Jun 5, 2013, at 6:37 PM, Richard Wettel <[hidden email]> wrote:

> Hi guys
>
> I tried to run your hello world example.
> I first loaded ConfigurationOfSourceCity in a Moose 4.8 development image and tried to run it.
> Then I loaded it in a Pharo2.0 image and failed the same.
> I tried to load the image using a NBCog VM (latest).
>
> What am I doing wrong?
>
> Cheers
> Ricky
>
>
>
> On Jun 5, 2013, at 1:39 PM, Igor Stasenko wrote:
>
>>
>>
>> On 4 June 2013 17:52, Alexandre Bergel <[hidden email]> wrote:
>> Yeah!
>> It works (I guess). I had to use the right VM also.
>>
>> I obtain the attached screenshot. Apparently the background is not updated. Is this intended in your example?
>>
>> Seems so.. an opengl buffer is cleared by fully transparent color:
>>     gl
>>         clearColor_red: 1 green:  1 blue:  1 alpha: 0;
>>         clear: GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT.
>>
>> then, when resulting image transferred back to Display form,
>> it only changes the pixels which is affected, but fully transparent ones will keep background unchanged.
>> The solution is to use opaque color(s) in opengl buffer,
>> or clear background by morph, before copying pixels from opengl buffer.
>>
>>
>> Cheers,
>> Alexandre
>>
>> <Screen Shot 2013-06-04 at 11.51.13 AM.png>
>>
>> On Jun 4, 2013, at 9:49 AM, Erwan Douaille <[hidden email]> wrote:
>>
>>> I attached a quick demo
>>>
>>> GLTest new openInWorld
>>>
>>>
>>> 2013/6/4 Alexandre Bergel <[hidden email]>
>>> Hi Igor,
>>>
>>> Thanks for your help.
>>> Unfortunately, I do not have much time to dive in the implementation. A student is asking me how he can use OpenGL in Pharo. I would like to give him a simple starting point
>>>
>>> What would be a simple piece of code that simply open a cube on the screen? I cannot ask him to go and study SourceCity or the implementation of NBOpenGL. He barely knows Smalltalk but he is very smart.
>>>
>>> So, how to show a cube on the screen please?
>>>
>>> Cheers,
>>> Alexandre
>>>
>>>
>>> On Jun 4, 2013, at 4:32 AM, Igor Stasenko <[hidden email]> wrote:
>>>
>>> > On 3 June 2013 21:06, Alexandre Bergel <[hidden email]> wrote:
>>> >> How can I make sure that OpenGL works on my machine?
>>> >
>>> > You don't. It just works.
>>> >
>>> > The problem is that different hardware has different features supported.
>>> > During initialization of context i checking + asking for some capabilities.
>>> > Looks like your machine does not supports them fully, or
>>> > initialization logic is flawed..
>>> > Did you tried to use latest config of NBOpenGL on your machine?
>>> >
>>> >> What would be the hello world example in OpenGL in Pharo?
>>> >>
>>> >
>>> > Anything which shows on screen, like drawing a triangle.
>>> >
>>> >> Cheers,
>>> >> Alexandre
>>> >
>>> >> On Jun 3, 2013, at 7:27 AM, Igor Stasenko <[hidden email]> wrote:
>>> >>
>>> >>> On 3 June 2013 05:18, Alexandre Bergel <[hidden email]> wrote:
>>> >>>> Osx 10.8.3
>>> >>>>
>>> >>>> Alexandre
>>> >>>>
>>> >>>
>>> >>> It is strange.
>>> >>> I checked things lately, NBOpenGL works fine on macs.
>>> >>> But i seend that source city code has some modifications. Maybe that
>>> >>> is the problem.
>>> >>>
>>> >>>> On Jun 2, 2013, at 10:29 PM, Igor Stasenko <[hidden email]> wrote:
>>> >>>>
>>> >>>>> On 3 June 2013 00:59, Alexandre Bergel <[hidden email]> wrote:
>>> >>>>>> Where are such examples?
>>> >>>>>> How can I try an example of OpenGl on my macbook?
>>> >>>>>>
>>> >>>>>> I've tried to execute "SourceCityGL new" and I got an error "No suitable implementation found for initializing OpenGL context for your platform". No idea why I got this. I have the same error when I try "GLTTRenderingDemo new"
>>> >>>>>>
>>> >>>>>> I am using Pharo 1.4 Summer. Do I have to install some libraries somewhere? I guess I have OpenGl installed on my mac.
>>> >>>>>
>>> >>>>> What OS version you running?
>>> >>>>>
>>> >>>>>>
>>> >>>>>> Cheers,
>>> >>>>>> Alexandre
>>> >>>>>>
>>> >>>>>>
>>> >>>>>>
>>> >>>>>>
>>> >>>>>> On Jun 2, 2013, at 6:02 PM, Erwan Douaille <[hidden email]> wrote:
>>> >>>>>>
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>> 2013/6/2 Erwan Douaille <[hidden email]>
>>> >>>>>>> it's okay, it happens since 2.0, just proceed
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>> 2013/6/2 Stephan Eggermont <[hidden email]>
>>> >>>>>>>> This package depends on the following classes:
>>> >>>>>>>> TTFontReader
>>> >>>>>>>> TTFontDescription
>>> >>>>>>>> TTGlyph
>>> >>>>>>>
>>> >>>>>>> And you will not be able to launch NBOpenGL examples. (Ask Igor about that stuff)
>>> >>>>>>> Maybe you should try it on pharo 1.4
>>> >>>>>>> Which configuration to use?
>>> >>>>>>> (In Moose 4.8)
>>> >>>>>>>
>>> >>>>>>> Stephan
>>> >>>>>>> _______________________________________________
>>> >>>>>>> Moose-dev mailing list
>>> >>>>>>> [hidden email]
>>> >>>>>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>> --
>>> >>>>>>> Best regards,
>>> >>>>>>>
>>> >>>>>>> Douaille Erwan <[hidden email]>
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>>
>>> >>>>>>> --
>>> >>>>>>> Best regards,
>>> >>>>>>>
>>> >>>>>>> Douaille Erwan <[hidden email]>
>>> >>>>>>> _______________________________________________
>>> >>>>>>> Moose-dev mailing list
>>> >>>>>>> [hidden email]
>>> >>>>>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>> >>>>>>
>>> >>>>>> --
>>> >>>>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>> >>>>>> Alexandre Bergel  http://www.bergel.eu
>>> >>>>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>> >>>>>>
>>> >>>>>>
>>> >>>>>>
>>> >>>>>
>>> >>>>>
>>> >>>>>
>>> >>>>> --
>>> >>>>> Best regards,
>>> >>>>> Igor Stasenko.
>>> >>>>
>>> >>>> --
>>> >>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>> >>>> Alexandre Bergel  http://www.bergel.eu
>>> >>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>> >>>>
>>> >>>>
>>> >>>>
>>> >>>
>>> >>>
>>> >>>
>>> >>> --
>>> >>> Best regards,
>>> >>> Igor Stasenko.
>>> >>
>>> >> --
>>> >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>> >> Alexandre Bergel  http://www.bergel.eu
>>> >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>> >
>>> > --
>>> > Best regards,
>>> > Igor Stasenko.
>>>
>>> --
>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>>> Alexandre Bergel  http://www.bergel.eu
>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Moose-dev mailing list
>>> [hidden email]
>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>>
>>>
>>>
>>> --
>>> Best regards,
>>>
>>> Douaille Erwan <[hidden email]>
>>> <GLTest.st>_______________________________________________
>>>
>>> Moose-dev mailing list
>>> [hidden email]
>>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>>
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel  http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>>
>>
>>
>> --
>> Best regards,
>> Igor Stasenko. _______________________________________________
>> Moose-dev mailing list
>> [hidden email]
>> https://www.iam.unibe.ch/mailman/listinfo/moose-dev
>
> _______________________________________________
> Moose-dev mailing list
> [hidden email]
> https://www.iam.unibe.ch/mailman/listinfo/moose-dev

--
_,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
Alexandre Bergel  http://www.bergel.eu
^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.




_______________________________________________
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[hidden email]
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--

Best regards,

Douaille Erwan <[hidden email]>

_______________________________________________
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