date:20161015

[osg-users] Save the image from computer shader

2016-10-15 Thread liu ming

Hi,

I am learning  the osg example "osgcomputeshaders",I have a problem that how 
can I save the image(the result of a computation) from shaders to my folder ? I 
use the code :

 
Code:
   while(!viewer.done())
{

viewer.frame();

osgDB::writeImageFile(*(tex2D->getImage(0)),"abc.jpg");
}



but it do not work,Could somebody give some suggestions ?

Thank you!

Cheers,
liu

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Re: [osg-users] vertex_array_object branch merged with master

2016-10-15 Thread tom spencer


robertosfield wrote:
> Hi Tom,
> 
> On 14 October 2016 at 20:58, tom spencer <> wrote:
> 
> > I am getting a crash in the radeon driver in both kubuntu 16.04 and kubuntu 
> > 16.10. I have attached a back trace.
> > 
> 
> Do you have a specific data file that provokes this crash?
> 
> Do know what whether previous versions of the OSG worked fine with
> this model?  If so what is the most recent version that worked?
> 
> Robert
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Hi, Robert

Sorry for not pointing this out. The backtrace shows running osgviewer with 
dumptruck.osgt which is part of openscenegraph-data 
https://github.com/openscenegraph/OpenSceneGraph-Data

Yes this was working prior to the vertex array merge.

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Re: [osg-users] Master renders with OpenGL error on OSX

2016-10-15 Thread Trajce Nikolov NICK

Raymond, try gDebugger (there is release for Mac OS too) or this apitrace.
You can easely catch the OpenGL: error - with gDebugger it can show you the
source code line producing the error

On Sat, Oct 15, 2016 at 2:26 PM, Raymond de Vries  wrote:

> Hi Robert,
>
> Ouch, typo, I meant to set the OSG_GL_ERROR_CHECKING properly...
>
> I am afraid this won't provide more info neither:
>
> MB:~ ray$ env | grep ONCE
> OSG_GL_ERROR_CHECKING=ONCE_PER_ATTRIBUTE
> MB:~ ray$ env | grep NOTIFY
> OSG_NOTIFY_LEVEL=NOTICE
> MBAngela-3:~ ray$ osgviewer cow.osg
> OSG_VERTEX_BUFFER_HINT set to VERTEX_ARRAY_OBJECT
> ViewerBase::configureAffinity() numProcessors=8
>   databasePagers = 1
> _forceVertexArrayObject = 0
> _forceVertexBufferObject = 0
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
> Warning: detected OpenGL error 'invalid operation' at start of
> State::apply()
>
> When I have more time, I will dig into it more. Do you have other
> suggestions in the mean time?
>
> Cheers
> Raymond
>
>
>
>
>
> On 15-10-2016 13:29, Robert Osfield wrote:
>
>> Hi Raymond,
>>
>> Unfortunately the output doesn't yet provide anything clearer to what
>> might be amiss.
>>
>> Could you try the test with the env OSG_GL_ERROR_CHECKING set to
>> ONCE_PER_ATTRIBUTE, setting the env var to OSG_GL_ERROR_CHECKINGas
>> your specified will not change the setting, so will default to
>> ONCE_PER_FRAME.
>>
>> Robert.
>>
>> On 15 October 2016 at 09:13, Raymond de Vries  wrote:
>>
>>> Hi,
>>>
>>> I did another test and the output with default settings is (NOTICE):
>>>
>>> ViewerBase::configureAffinity() numProcessors=8
>>>databasePagers = 1
>>> _forceVertexArrayObject = 0
>>> _forceVertexBufferObject = 0
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> 
>>>
>>> Setting OSG_GL_ERROR_CHECKING=OSG_GL_ERROR_CHECKING does not make a
>>> difference in output.
>>>
>>> Setting OSG_NOTIFY_LEVEL to INFO reveals this part that might be
>>> interesting:
>>>
>>> Created new 0x7fdf1b714510 TextureObject, _numOfTextureObjects 1
>>> OpenGL extension '' is not supported.
>>> RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b712660
>>> Setting up osg::Camera::FRAME_BUFFER
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> ShaderComposer::~ShaderComposer() 0x7fdf1b40dd80
>>> OpenGL extension '' is not supported.
>>> RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b40ecd0
>>> Setting up osg::Camera::FRAME_BUFFER
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>>
>>> Cheers, hth,
>>> Raymond
>>>
>>>
>>>
>>>
>>>
>>> On 14-10-2016 13:51, Raymond de Vries wrote:
>>>
 Hi Robert,

 Yes, indeed, that's the OpenGL error. I have build the same version on
 Windows (nvidia card) and no such error so I am not sure of course if
 it has
 to do with OSX or not.

 The last version that I checked was 3.5.4 and that one doesn't produce
 the
 errors. Indeed, I tested it explicitly because of the VAO changes.

 Later, I will produce more results and post them.

 Regards,
 Raymond




 On 10/14/2016 1:35 PM, Robert Osfield wrote:

> Hi Raymond,
>
> Thanks for the logs, unfortunately the debug logs actually make it
> more difficult to spot the actual errors.   The only error I spotted
> was:
>
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
>
> Is this the error you are thinking of?
>
> Could you set the OSG_NOTIFY_LEVEL back to NOTICE and the env
> OSG_GL_ERROR_CHECKING env var to ONCE_PER_ATTRIBUTE
>
> This hopefully will enable us to home in a bit more closely to what
> might be causing the GL error.
>
> Another useful bit of information is the last OSG version that doesn't

Re: [osg-users] Master renders with OpenGL error on OSX

2016-10-15 Thread Raymond de Vries


Hi Robert,

Ouch, typo, I meant to set the OSG_GL_ERROR_CHECKING properly...

I am afraid this won't provide more info neither:

MB:~ ray$ env | grep ONCE
OSG_GL_ERROR_CHECKING=ONCE_PER_ATTRIBUTE
MB:~ ray$ env | grep NOTIFY
OSG_NOTIFY_LEVEL=NOTICE
MBAngela-3:~ ray$ osgviewer cow.osg
OSG_VERTEX_BUFFER_HINT set to VERTEX_ARRAY_OBJECT
ViewerBase::configureAffinity() numProcessors=8
  databasePagers = 1
_forceVertexArrayObject = 0
_forceVertexBufferObject = 0
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()
Warning: detected OpenGL error 'invalid operation' at start of 
State::apply()


When I have more time, I will dig into it more. Do you have other 
suggestions in the mean time?


Cheers
Raymond




On 15-10-2016 13:29, Robert Osfield wrote:

Hi Raymond,

Unfortunately the output doesn't yet provide anything clearer to what
might be amiss.

Could you try the test with the env OSG_GL_ERROR_CHECKING set to
ONCE_PER_ATTRIBUTE, setting the env var to OSG_GL_ERROR_CHECKINGas
your specified will not change the setting, so will default to
ONCE_PER_FRAME.

Robert.

On 15 October 2016 at 09:13, Raymond de Vries  wrote:

Hi,

I did another test and the output with default settings is (NOTICE):

ViewerBase::configureAffinity() numProcessors=8
   databasePagers = 1
_forceVertexArrayObject = 0
_forceVertexBufferObject = 0
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)


Setting OSG_GL_ERROR_CHECKING=OSG_GL_ERROR_CHECKING does not make a
difference in output.

Setting OSG_NOTIFY_LEVEL to INFO reveals this part that might be
interesting:

Created new 0x7fdf1b714510 TextureObject, _numOfTextureObjects 1
OpenGL extension '' is not supported.
RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b712660
Setting up osg::Camera::FRAME_BUFFER
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
ShaderComposer::~ShaderComposer() 0x7fdf1b40dd80
OpenGL extension '' is not supported.
RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b40ecd0
Setting up osg::Camera::FRAME_BUFFER
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)

Cheers, hth,
Raymond





On 14-10-2016 13:51, Raymond de Vries wrote:

Hi Robert,

Yes, indeed, that's the OpenGL error. I have build the same version on
Windows (nvidia card) and no such error so I am not sure of course if it has
to do with OSX or not.

The last version that I checked was 3.5.4 and that one doesn't produce the
errors. Indeed, I tested it explicitly because of the VAO changes.

Later, I will produce more results and post them.

Regards,
Raymond




On 10/14/2016 1:35 PM, Robert Osfield wrote:

Hi Raymond,

Thanks for the logs, unfortunately the debug logs actually make it
more difficult to spot the actual errors.   The only error I spotted
was:

Warning: detected OpenGL error 'invalid operation' at after
RenderBin::draw(..)

Is this the error you are thinking of?

Could you set the OSG_NOTIFY_LEVEL back to NOTICE and the env
OSG_GL_ERROR_CHECKING env var to ONCE_PER_ATTRIBUTE

This hopefully will enable us to home in a bit more closely to what
might be causing the GL error.

Another useful bit of information is the last OSG version that doesn't
report the above error on our system.  It could be that the cause of
the GL error precedes the VAO work.

Cheers,
Robert.

On 14 October 2016 at 11:13, Raymond de Vries  wrote:

Hi Robert,

I just tried a build from this mornings git master on my Mac book (up to
date OSX and dependencies) and both the default and VAO paths result in
OpenGL errors. I have attached 2 (stripped) logs which I created after I
increased the notify level. Rendering results of cow, cessna and some
other
models look ok.

I was going to try gdebugger but that one is not available anymore?! If
you
have some hints to produce more info I am happy to test some more.

Cheers
Raymond

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Re: [osg-users] Master renders with OpenGL error on OSX

2016-10-15 Thread Robert Osfield

Hi Raymond,

Unfortunately the output doesn't yet provide anything clearer to what
might be amiss.

Could you try the test with the env OSG_GL_ERROR_CHECKING set to
ONCE_PER_ATTRIBUTE, setting the env var to OSG_GL_ERROR_CHECKINGas
your specified will not change the setting, so will default to
ONCE_PER_FRAME.

Robert.

On 15 October 2016 at 09:13, Raymond de Vries  wrote:
> Hi,
>
> I did another test and the output with default settings is (NOTICE):
>
> ViewerBase::configureAffinity() numProcessors=8
>   databasePagers = 1
> _forceVertexArrayObject = 0
> _forceVertexBufferObject = 0
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> 
>
> Setting OSG_GL_ERROR_CHECKING=OSG_GL_ERROR_CHECKING does not make a
> difference in output.
>
> Setting OSG_NOTIFY_LEVEL to INFO reveals this part that might be
> interesting:
>
> Created new 0x7fdf1b714510 TextureObject, _numOfTextureObjects 1
> OpenGL extension '' is not supported.
> RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b712660
> Setting up osg::Camera::FRAME_BUFFER
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> ShaderComposer::~ShaderComposer() 0x7fdf1b40dd80
> OpenGL extension '' is not supported.
> RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b40ecd0
> Setting up osg::Camera::FRAME_BUFFER
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
> Warning: detected OpenGL error 'invalid operation' at after
> RenderBin::draw(..)
>
> Cheers, hth,
> Raymond
>
>
>
>
>
> On 14-10-2016 13:51, Raymond de Vries wrote:
>>
>> Hi Robert,
>>
>> Yes, indeed, that's the OpenGL error. I have build the same version on
>> Windows (nvidia card) and no such error so I am not sure of course if it has
>> to do with OSX or not.
>>
>> The last version that I checked was 3.5.4 and that one doesn't produce the
>> errors. Indeed, I tested it explicitly because of the VAO changes.
>>
>> Later, I will produce more results and post them.
>>
>> Regards,
>> Raymond
>>
>>
>>
>>
>> On 10/14/2016 1:35 PM, Robert Osfield wrote:
>>>
>>> Hi Raymond,
>>>
>>> Thanks for the logs, unfortunately the debug logs actually make it
>>> more difficult to spot the actual errors.   The only error I spotted
>>> was:
>>>
>>> Warning: detected OpenGL error 'invalid operation' at after
>>> RenderBin::draw(..)
>>>
>>> Is this the error you are thinking of?
>>>
>>> Could you set the OSG_NOTIFY_LEVEL back to NOTICE and the env
>>> OSG_GL_ERROR_CHECKING env var to ONCE_PER_ATTRIBUTE
>>>
>>> This hopefully will enable us to home in a bit more closely to what
>>> might be causing the GL error.
>>>
>>> Another useful bit of information is the last OSG version that doesn't
>>> report the above error on our system.  It could be that the cause of
>>> the GL error precedes the VAO work.
>>>
>>> Cheers,
>>> Robert.
>>>
>>> On 14 October 2016 at 11:13, Raymond de Vries  wrote:

 Hi Robert,

 I just tried a build from this mornings git master on my Mac book (up to
 date OSX and dependencies) and both the default and VAO paths result in
 OpenGL errors. I have attached 2 (stripped) logs which I created after I
 increased the notify level. Rendering results of cow, cessna and some
 other
 models look ok.

 I was going to try gdebugger but that one is not available anymore?! If
 you
 have some hints to produce more info I am happy to test some more.

 Cheers
 Raymond

 ___
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 osg-users@lists.openscenegraph.org

 http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

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>>
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Re: [osg-users] vertex_array_object branch merged with master

2016-10-15 Thread Robert Osfield

Hi Tom,

On 14 October 2016 at 20:58, tom spencer  wrote:
>  I am getting a crash in the radeon driver in both kubuntu 16.04 and kubuntu 
> 16.10. I have attached a back trace.

Do you have a specific data file that provokes this crash?

Do know what whether previous versions of the OSG worked fine with
this model?  If so what is the most recent version that worked?

Robert
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Re: [osg-users] Master renders with OpenGL error on OSX

2016-10-15 Thread Raymond de Vries


Hi,

I did another test and the output with default settings is (NOTICE):

ViewerBase::configureAffinity() numProcessors=8
  databasePagers = 1
_forceVertexArrayObject = 0
_forceVertexBufferObject = 0
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)



Setting OSG_GL_ERROR_CHECKING=OSG_GL_ERROR_CHECKING does not make a 
difference in output.


Setting OSG_NOTIFY_LEVEL to INFO reveals this part that might be 
interesting:


Created new 0x7fdf1b714510 TextureObject, _numOfTextureObjects 1
OpenGL extension '' is not supported.
RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b712660
Setting up osg::Camera::FRAME_BUFFER
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)

ShaderComposer::~ShaderComposer() 0x7fdf1b40dd80
OpenGL extension '' is not supported.
RenderStage::runCameraSetUp(osg::RenderInfo& renderInfo) 0x7fdf1b40ecd0
Setting up osg::Camera::FRAME_BUFFER
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)
Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)


Cheers, hth,
Raymond




On 14-10-2016 13:51, Raymond de Vries wrote:

Hi Robert,

Yes, indeed, that's the OpenGL error. I have build the same version on 
Windows (nvidia card) and no such error so I am not sure of course if 
it has to do with OSX or not.


The last version that I checked was 3.5.4 and that one doesn't produce 
the errors. Indeed, I tested it explicitly because of the VAO changes.


Later, I will produce more results and post them.

Regards,
Raymond




On 10/14/2016 1:35 PM, Robert Osfield wrote:

Hi Raymond,

Thanks for the logs, unfortunately the debug logs actually make it
more difficult to spot the actual errors.   The only error I spotted
was:

Warning: detected OpenGL error 'invalid operation' at after 
RenderBin::draw(..)


Is this the error you are thinking of?

Could you set the OSG_NOTIFY_LEVEL back to NOTICE and the env
OSG_GL_ERROR_CHECKING env var to ONCE_PER_ATTRIBUTE

This hopefully will enable us to home in a bit more closely to what
might be causing the GL error.

Another useful bit of information is the last OSG version that doesn't
report the above error on our system.  It could be that the cause of
the GL error precedes the VAO work.

Cheers,
Robert.

On 14 October 2016 at 11:13, Raymond de Vries  wrote:

Hi Robert,

I just tried a build from this mornings git master on my Mac book 
(up to

date OSX and dependencies) and both the default and VAO paths result in
OpenGL errors. I have attached 2 (stripped) logs which I created 
after I
increased the notify level. Rendering results of cow, cessna and 
some other

models look ok.

I was going to try gdebugger but that one is not available anymore?! 
If you

have some hints to produce more info I am happy to test some more.

Cheers
Raymond

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[osg-users] Save the image from computer shader

Re: [osg-users] vertex_array_object branch merged with master

Re: [osg-users] Master renders with OpenGL error on OSX

Re: [osg-users] Master renders with OpenGL error on OSX

Re: [osg-users] Master renders with OpenGL error on OSX

Re: [osg-users] vertex_array_object branch merged with master

Re: [osg-users] Master renders with OpenGL error on OSX

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