On 17 March 2014 16:57, Ben Coman <btc@openinworld.com> wrote:

As NBOpenBL gets broader use by end-users of applications like Roassal, there is a good chance of a flood of these reports. Maybe too late to get into Pharo3, but it would good (if possible) for system checking be built in to determine the feature support of a user's graphic card.

Alternatively, such reports might be reduced with better indication its a lack of feature rather than an error. For example: NBGLFrameBuffer(Object)>>unspportedFeature: looks better than : NBGLFrameBuffer(Object)>>error:

What does it changes? This error is going from OpenGL itself. GL_FRAMEBUFFER_UNSUPPORTED is a constant reported by opengl.. are you going to introduce separate error-handling method for each and every possible error code which opengl produces (includes hundreds of extensions and more coming each year) ? If yes, then i wish you good luck! :) The complete error description can be found in corresponding OpenGL documentation. As well as recommendations what to do and what not. And i am not going to teach how to use OpenGL library. ;)

cheers -ben

In another thread Ronie Salgado wrote:

Hi Nicolai,

What are your system specs?, specially your graphic card. Roassal3D requires a graphic card with at least OpenGL 2.0 support. Try updating your graphic drivers

Greetings, Ronie

This thread Igor Stasenko wrote:

On 17 March 2014 12:13, Nicolai Hess <nicolaihess@web.de> wrote:

...

2014-03-17 11:49 GMT+01:00 Igor Stasenko <siguctua@gmail.com>:

https://ci.inria.fr/pharo-contribution/job/NBOpenGL/

...

On 16 March 2014 00:02, Nicolai Hess <nicolaihess@web.de> wrote:

...

Is there a working version (maybe with examples) for NBOpenGL on Windows?

-- Best regards, Igor Stasenko.

Thank you Igor,

now the question is, what to do with this? It looks like the same version I would get on installing Roassal3D, which doesn't work (all windows are empty).

Running GLViewportMorph new openInWorld or GLTTRenderingDemo new openInWorld results in an error NBGLFrameBuffer(Object)>>error: 'Frame buffer is incomplete: GL_FRAMEBUFFER_UNSUPPORTED'

so your graphics card/driver don't supports requested configuration of framebuffer used in demo.

all you have to do is to implement own, which will work on your machine. since you got that message, the NBOpenGL works fine.

...

Nicolai

-- Best regards, Igor Stasenko.

-- Best regards, Igor Stasenko.

On 17 March 2014 20:50, Nicolai Hess <nicolaihess@web.de> wrote:

2014-03-17 18:09 GMT+01:00 Igor Stasenko <siguctua@gmail.com>:

...

On 17 March 2014 16:57, Ben Coman <btc@openinworld.com> wrote:

...

As NBOpenBL gets broader use by end-users of applications like Roassal, there is a good chance of a flood of these reports. Maybe too late to get into Pharo3, but it would good (if possible) for system checking be built in to determine the feature support of a user's graphic card.

Alternatively, such reports might be reduced with better indication its a lack of feature rather than an error. For example: NBGLFrameBuffer(Object)>>unspportedFeature: looks better than : NBGLFrameBuffer(Object)>>error:

What does it changes? This error is going from OpenGL itself. GL_FRAMEBUFFER_UNSUPPORTED is a constant reported by opengl.. are you going to introduce separate error-handling method for each and every possible error code which opengl produces (includes hundreds of extensions and more coming each year) ? If yes, then i wish you good luck! :)

The complete error description can be found in corresponding OpenGL documentation. As well as recommendations what to do and what not. And i am not going to teach how to use OpenGL library. ;)

...

cheers -ben

In another thread Ronie Salgado wrote:

Hi Nicolai,

What are your system specs?, specially your graphic card. Roassal3D requires a graphic card with at least OpenGL 2.0 support. Try updating your graphic drivers

Greetings, Ronie

This thread Igor Stasenko wrote:

On 17 March 2014 12:13, Nicolai Hess <nicolaihess@web.de> wrote:

...

2014-03-17 11:49 GMT+01:00 Igor Stasenko <siguctua@gmail.com>:

https://ci.inria.fr/pharo-contribution/job/NBOpenGL/

...

On 16 March 2014 00:02, Nicolai Hess <nicolaihess@web.de> wrote:

...

Is there a working version (maybe with examples) for NBOpenGL on Windows?

-- Best regards, Igor Stasenko.

Thank you Igor,

now the question is, what to do with this? It looks like the same version I would get on installing Roassal3D, which doesn't work (all windows are empty).

Running GLViewportMorph new openInWorld or GLTTRenderingDemo new openInWorld results in an error NBGLFrameBuffer(Object)>>error: 'Frame buffer is incomplete: GL_FRAMEBUFFER_UNSUPPORTED'

so your graphics card/driver don't supports requested configuration of framebuffer used in demo.

all you have to do is to implement own, which will work on your machine. since you got that message, the NBOpenGL works fine.

...

Nicolai

-- Best regards, Igor Stasenko.

-- Best regards, Igor Stasenko.

Ok, looks like it is a driver issue. On another windows machine, creating the frame buffer object works (no more GL_FRAMEBUFFER_UNSUPPORTED error). But the rendering looks strange, this is not how it is supposed to look, right?

Screenshot attached:

not quite, but at least it is functional. Maybe there was changes in code which causing artifacts. -- Best regards, Igor Stasenko.