- Pharo-users - lists.pharo.org

Re: [Pharo-users] SDL2 and fork

by merwanouddane＠gmail.com

Hello, We donât lose all keystroke events, but they are replaced by keydown events. Merwan De : Nicolai Hess EnvoyÃ© : âlundiâ â20â âavrilâ â2015 â09â:â36 Ã : Any question about pharo is welcome; Esteban Lorenzano 2015-04-20 8:38 GMT+02:00 Matthieu Lacaton <matthieu.lacaton(a)gmail.com>: Hello, Thanks for your answers ! I have multiple remarks here : 1) I know that SDL2 should not be used "as is" in Pharo and I should use OSWindow instead, that's why I won't use SDL2 directly anymore. On windows there is currently an issue if you use OSWindow instead of directly use SDL. If you create a window with OSWindow, (like in the SDL2Example>>osWindow) you will loose all "keystroke" events in the main pharo window. I don't know yet why this happens. nicolai

April 20, 2015

Re: [Pharo-users] SDL2 and fork

by Nicolai Hess

2015-04-20 8:38 GMT+02:00 Matthieu Lacaton <matthieu.lacaton(a)gmail.com>: > Hello, > > Thanks for your answers ! I have multiple remarks here : > > On my computer (which is probably not the fastest I must admit) running it > with a fork slows the whole operating system. > What you could do, add a wait time in your event proccessing loop stop := false. [ stop ] whileFalse: [ .... 20 milliSeconds wait. ]. So, it does not constantly checks for new events. The better, cleaner way of course is, don't use your own sdl event processing loop, but use OSWindow (as soon as this is working :) ) best nicolai Matthieu > > > 2015-04-20 1:57 GMT+02:00 Alexandre Bergel <alexandre.bergel(a)me.com>: > >> Hi Matthieu, >> >> This is important: Binding SDL with Pharo will help Roassal to get better. >> Please, let us know how it goes >> >> Alexandre >> >> >> > On Apr 9, 2015, at 12:54 PM, Matthieu Lacaton < >> matthieu.lacaton(a)gmail.com> wrote: >> > >> > Hello everyone, >> > >> > I tried to use the SDL2 binding to Pharo to create a very basic 2D >> application (just some sprites and events) and it worked great. >> > The issue I have is that when I start my application, as long as I have >> an active SDL window, I can't use my Pharo image anymore (it freezes). >> > To solve this problem I tried opening my application in another thread >> by doing so : >> > [ (MyApplication new) start. ] forkAt: Processor lowestPriority. (If I >> don't chose a low priority it changes nothing) >> > >> > The problem is that even if it kind of works, it is really slow and it >> slows my whole operating system as well (I use windows XP) >> > >> > How can I fork more efficiently or open a SDL window without losing >> control of my image ? >> > >> > Thanks, >> > >> > Matthieu >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> >> >

April 20, 2015

Re: [Pharo-users] Polygons + Skybox in woden?

by Yuriy Tymchuk

Thanks Ronie! Cool stuff. > On 20 Apr 2015, at 07:56, Ronie Salgado <roniesalg(a)gmail.com> wrote: > > I have just added a simple skybox support. Check the modified WDFPSSimpleExample6 as for how to use it. > > > <skyboxSample.png> > > > To embed the images, I am using the following utility in the playground: > > WDExamplesData storeCubeImageFromFile: 'quickMountain' extension: '.png' dataMethodName: #quickMountainSkyData imageMethodName: #quickMountainSky > > Which embeds quickMountain_px.png, quickMountain_nx.png, quickMountain_py.png, quickMountain_ny.png, quickMountain_pz.png and quickMountain_nz.png . The generated WDExamples >> #quickMountainSky method returns an array with 6 forms in the same order, which is used to construct a WDTextureCube > > Best regards, > Ronie > > 2015-04-18 17:39 GMT-03:00 Yuriy Tymchuk <yuriy.tymchuk(a)me.com <mailto:yuriy.tymchuk@me.com>>: > >> On 16 Apr 2015, at 22:51, stepharo <stepharo(a)free.fr <mailto:stepharo@free.fr>> wrote: >> >> >>> Uhh.. >>> >>> I Woden still developed? Because I thought that Object Profile was working on it. Otherwise maybe we should switch to the CodeCity engineâ¦ it seems to have more âsupportâ. >> >> what is the codeCity engine? >> you want to reinvent all the effort ronie put in woden? > > No, our aim is not to create a 3D graphics framework. But we meed to draw 3d boxes and few more entities somehow. > > Iâve mentioned Codecity because itâs usually easy to get a response from Ricky and at the moment of written, I was really perplexed with the answer. > > Iâm not expecting code owners to do someone elseâs job. For example Ronieâs answer was really cool. But if someone would tell that Ronie ran away and no one knows how Woden works - itâs ok too, as different things happen. > > But imagine that you ask: > âDoes QualityAssistant fix critics automatically?â > and Michele answers: > âNo idea, but you should check and let us knowâ > > Maybe I am expecting too much responsibility, in this case please forgive me. > Uko > > >> >> Stef >> >>> >>> Uko >>> >>>> On 16 Apr 2015, at 15:11, Alexandre Bergel <alexandre.bergel(a)me.com <mailto:alexandre.bergel@me.com>> wrote: >>>> >>>> No idea, but let us know! >>>> >>>> Alexandre >>>> -- >>>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >>>> Alexandre Bergel http://www.bergel.eu <http://www.bergel.eu/> >>>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >>>> >>>> >>>> >>>>> On Apr 16, 2015, at 4:41 AM, Lusa Nicolas <nicolas.lusa(a)usi.ch <mailto:nicolas.lusa@usi.ch>> wrote: >>>>> >>>>> Hello, >>>>> >>>>> I am Nicolas Lusa from university of Lugano and I am working on my master thesis with the supervision of Yuriy Tymchuk. >>>>> Right now I am working with woden and I am trying to build polygons. >>>>> Question1: Is it possible somehow to build polygons in woden? >>>>> >>>>> If not: >>>>> I know woden is based on OpenGL and I also know that in OpenGL is possible to draw polygons with GL_POLYGON and a given array of points. >>>>> Question2: How could I use GL_POLYGON through woden for my purpose? >>>>> >>>>> Moreover, I would like to put some sort of skybox in my scene. Apparently it's not possible yet, so my question is how could I do that? >>>>> >>>>> Thanks in advance. >>>>> Cheers. >>>>> Nicolas >>>> >>> >> > >

April 20, 2015

Re: [Pharo-users] SDL2 and fork

by Nicolai Hess

2015-04-20 8:38 GMT+02:00 Matthieu Lacaton <matthieu.lacaton(a)gmail.com>: > Hello, > > Thanks for your answers ! I have multiple remarks here : > > 1) I know that SDL2 should not be used "as is" in Pharo and I should use > OSWindow instead, that's why I won't use SDL2 directly anymore. > On windows there is currently an issue if you use OSWindow instead of directly use SDL. If you create a window with OSWindow, (like in the SDL2Example>>osWindow) you will loose all "keystroke" events in the main pharo window. I don't know yet why this happens. nicolai

April 20, 2015

Re: [Pharo-users] SDL2 and fork

by Nicolai Hess

2015-04-20 8:38 GMT+02:00 Matthieu Lacaton <matthieu.lacaton(a)gmail.com>: > Hello, > ... > Could it be that I compiled it for 64bits (my ubuntu is 64 bits) and Pharo > does not support it so I should recompile it for 32 bits ? > Yes. > > Thanks you all ! > > Matthieu > > > 2015-04-20 1:57 GMT+02:00 Alexandre Bergel <alexandre.bergel(a)me.com>: > >> Hi Matthieu, >> >> This is important: Binding SDL with Pharo will help Roassal to get better. >> Please, let us know how it goes >> >> Alexandre >> >> >> > On Apr 9, 2015, at 12:54 PM, Matthieu Lacaton < >> matthieu.lacaton(a)gmail.com> wrote: >> > >> > Hello everyone, >> > >> > I tried to use the SDL2 binding to Pharo to create a very basic 2D >> application (just some sprites and events) and it worked great. >> > The issue I have is that when I start my application, as long as I have >> an active SDL window, I can't use my Pharo image anymore (it freezes). >> > To solve this problem I tried opening my application in another thread >> by doing so : >> > [ (MyApplication new) start. ] forkAt: Processor lowestPriority. (If I >> don't chose a low priority it changes nothing) >> > >> > The problem is that even if it kind of works, it is really slow and it >> slows my whole operating system as well (I use windows XP) >> > >> > How can I fork more efficiently or open a SDL window without losing >> control of my image ? >> > >> > Thanks, >> > >> > Matthieu >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> >> >

April 20, 2015

Re: [Pharo-users] SDL2 and fork

by stepharo

Alex Just to make sure we are clear on this: pay attention NOBODY should directly use SDL. OSWindow is the API, SDL is a BACKEND. Athens is the API, CAIRO a BACKEND Stef Le 20/4/15 02:57, Alexandre Bergel a Ã©crit : > Hi Matthieu, > > This is important: Binding SDL with Pharo will help Roassal to get better. > Please, let us know how it goes > > Alexandre > > >> On Apr 9, 2015, at 12:54 PM, Matthieu Lacaton <matthieu.lacaton(a)gmail.com> wrote: >> >> Hello everyone, >> >> I tried to use the SDL2 binding to Pharo to create a very basic 2D application (just some sprites and events) and it worked great. >> The issue I have is that when I start my application, as long as I have an active SDL window, I can't use my Pharo image anymore (it freezes). >> To solve this problem I tried opening my application in another thread by doing so : >> [ (MyApplication new) start. ] forkAt: Processor lowestPriority. (If I don't chose a low priority it changes nothing) >> >> The problem is that even if it kind of works, it is really slow and it slows my whole operating system as well (I use windows XP) >> >> How can I fork more efficiently or open a SDL window without losing control of my image ? >> >> Thanks, >> >> Matthieu

April 20, 2015

fluid dynamics fully in Pharo :)

by stepharo

HoneyGinger is a fluid dynamics and visualization library which can simulate moves of liquid caused by obstacles and visualize refraction by estimating angles of water surface from distribution of pressure. https://www.youtube.com/watch?v=jl6OSWUXh14 Thanks Oda for this great demo.

April 20, 2015

Re: [Pharo-users] [Bulk] Looking for Magritte example: MAAddress, MAPerson...

by stepharo

Thanks yanni! Le 19/4/15 20:34, Yanni Chiu a Ã©crit : > On Apr 19, 2015, at 6:59 AM, phil(a)highoctane.be wrote: > >> Good CRUD ability is what most people are looking for in web frameworks and we are a bit lagging here. >> > I extracted out an example store, from the work Iâve been doing, to put together a presentation for our local Smalltalk user group (http://www.smalltalk.ca/meeting-notes.html) My plan was to put it out as a starter CRUD framework. Itâs far from a full CRUD framework, but it does have single sign-on via (Zinc-SSO), a model with two classes and a one-many relationship. The Mustache framework allows it to be skinned easily with TwitterBootstrap. > > Iâll try to make it happen sooner, but Iâve only got a time budget of 8 hours a week for Pharo work. > > >

April 20, 2015

Re: [Pharo-users] Polygons + Skybox in woden?

by Lusa Nicolas

Thanks Ronie this is what I was looking for! Amazing going to try it out today and see how it works. For what concern polygons I knew about the algorithms (thanks for mentioning them anyway), was just looking for a "more straight forward" solution since rendering polygons isn't the main goal of my thesis which means I have others priorities. Thanks again, cheers. Nicolas On Apr 20, 2015, at 7:56 AM, Ronie Salgado <roniesalg(a)gmail.com<mailto:roniesalg@gmail.com>> wrote: I have just added a simple skybox support. Check the modified WDFPSSimpleExample6 as for how to use it. <skyboxSample.png> To embed the images, I am using the following utility in the playground: WDExamplesData storeCubeImageFromFile: 'quickMountain' extension: '.png' dataMethodName: #quickMountainSkyData imageMethodName: #quickMountainSky Which embeds quickMountain_px.png, quickMountain_nx.png, quickMountain_py.png, quickMountain_ny.png, quickMountain_pz.png and quickMountain_nz.png . The generated WDExamples >> #quickMountainSky method returns an array with 6 forms in the same order, which is used to construct a WDTextureCube Best regards, Ronie 2015-04-18 17:39 GMT-03:00 Yuriy Tymchuk <yuriy.tymchuk(a)me.com<mailto:yuriy.tymchuk@me.com>>: On 16 Apr 2015, at 22:51, stepharo <stepharo(a)free.fr<mailto:stepharo@free.fr>> wrote: Uhh.. I Woden still developed? Because I thought that Object Profile was working on it. Otherwise maybe we should switch to the CodeCity engineâ¦ it seems to have more âsupportâ. what is the codeCity engine? you want to reinvent all the effort ronie put in woden? No, our aim is not to create a 3D graphics framework. But we meed to draw 3d boxes and few more entities somehow. Iâve mentioned Codecity because itâs usually easy to get a response from Ricky and at the moment of written, I was really perplexed with the answer. Iâm not expecting code owners to do someone elseâs job. For example Ronieâs answer was really cool. But if someone would tell that Ronie ran away and no one knows how Woden works - itâs ok too, as different things happen. But imagine that you ask: âDoes QualityAssistant fix critics automatically?â and Michele answers: âNo idea, but you should check and let us knowâ Maybe I am expecting too much responsibility, in this case please forgive me. Uko Stef Uko On 16 Apr 2015, at 15:11, Alexandre Bergel <alexandre.bergel(a)me.com<mailto:alexandre.bergel@me.com>> wrote: No idea, but let us know! Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu<http://www.bergel.eu/> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. On Apr 16, 2015, at 4:41 AM, Lusa Nicolas <nicolas.lusa(a)usi.ch<mailto:nicolas.lusa@usi.ch>> wrote: Hello, I am Nicolas Lusa from university of Lugano and I am working on my master thesis with the supervision of Yuriy Tymchuk. Right now I am working with woden and I am trying to build polygons. Question1: Is it possible somehow to build polygons in woden? If not: I know woden is based on OpenGL and I also know that in OpenGL is possible to draw polygons with GL_POLYGON and a given array of points. Question2: How could I use GL_POLYGON through woden for my purpose? Moreover, I would like to put some sort of skybox in my scene. Apparently it's not possible yet, so my question is how could I do that? Thanks in advance. Cheers. Nicolas

April 20, 2015

Re: [Pharo-users] SDL2 and fork

by Matthieu Lacaton

Hello, Thanks for your answers ! I have multiple remarks here : 1) I know that SDL2 should not be used "as is" in Pharo and I should use OSWindow instead, that's why I won't use SDL2 directly anymore. 2) But for the moment OSWindow uses SDL2 anyway so for experimentation purposes I will try to see what's wrong with my code. The example you linked Nicolai is working indeed and this is more or less what I did too. I included my code with this e-mail so maybe you can have a better understanding (I am sorry but I didn't comment it :s). Note that for it to work you need to add the SDL_image library and all its plugins (for handling jpeg, png etc.) and add the following method to the image : SDL_Renderer >> createTextureFromFile: file <primitive: #primitiveNativeCall module: #NativeBoostPlugin error: errorCode> ^ self nbCall: #( SDL_Texture IMG_LoadTexture ( self , String file ) ) module: 'SDL_Image.dll' You can launch the game by executing "MyGame new startGame" On my computer (which is probably not the fastest I must admit) running it with a fork slows the whole operating system. 3) Another problem I had lately : I tried to use Pharo with linux (ubuntu 14.04.2 LTS) and Pharo just can't find the SDL library. I downloaded SDL source code and compiled it so i got the libSDL2-2.0.so.0.2.1 exactly as in the SDL2 class >> findSDL2 method. I tried to put it everywhere (in the "shared" and "bin" folder of Pharo and even at the root. I tried in /usr/lib/, in /usr/lib32/, in /usr/lib/x86_64-linux-gnu etc. and Pharo can never find it. Could it be that I compiled it for 64bits (my ubuntu is 64 bits) and Pharo does not support it so I should recompile it for 32 bits ? Thanks you all ! Matthieu 2015-04-20 1:57 GMT+02:00 Alexandre Bergel <alexandre.bergel(a)me.com>: > Hi Matthieu, > > This is important: Binding SDL with Pharo will help Roassal to get better. > Please, let us know how it goes > > Alexandre > > > > On Apr 9, 2015, at 12:54 PM, Matthieu Lacaton < > matthieu.lacaton(a)gmail.com> wrote: > > > > Hello everyone, > > > > I tried to use the SDL2 binding to Pharo to create a very basic 2D > application (just some sprites and events) and it worked great. > > The issue I have is that when I start my application, as long as I have > an active SDL window, I can't use my Pharo image anymore (it freezes). > > To solve this problem I tried opening my application in another thread > by doing so : > > [ (MyApplication new) start. ] forkAt: Processor lowestPriority. (If I > don't chose a low priority it changes nothing) > > > > The problem is that even if it kind of works, it is really slow and it > slows my whole operating system as well (I use windows XP) > > > > How can I fork more efficiently or open a SDL window without losing > control of my image ? > > > > Thanks, > > > > Matthieu > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > >

April 20, 2015