[osg-users] Opening .ico image files with osgDB::readImageFile

[Eran Cohen]

Hi,

I was wondering if there is a way to read an .ico file, preferably using osgDB. 

When I try to use it in the following way:

Code:
osg::Image* icoImage = osgDB::readImageFile("delete.ico")



icoImage is null.

Thank you!

Cheers,
Eran

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[osg-users] td

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Re: [osg-users] Read frame buffer back into main memory

[Antoine Rennuit]

Hello Robert,

And thanks for you message. I am trying to write the image to a file using


Code:

class ReadPixelsCallback : public osg::Camera::DrawCallback
{
public:
virtual void operator()( osg::RenderInfo& renderInfo ) const
{
osg::GraphicsContext* gc = renderInfo.getState()->getGraphicsContext();

int width = gc->getTraits()->width;
int height = gc->getTraits()->height;

osg::ref_ptr image = new osg::Image;
image->readPixels(0, 0, gc->getTraits()->width, 
gc->getTraits()->height, GL_RGB, GL_UNSIGNED_BYTE);



bool retValBmp = osgDB::writeImageFile(*image, 
"/home/enjyi/testImage.bmp");
bool retValJpg = osgDB::writeImageFile(*image, 
"/home/enjyi/testImage.jpg");
}
};




but all I get is 


Code:

Error writing file /home/arennuit/testImage.bmp: Warning: Could not find plugin 
to write image to file "/home/arennuit/testImage.bmp".
Error writing file /home/arennuit/testImage.jpg: Warning: Could not find plugin 
to write image to file "/home/arennuit/testImage.jpg".




Any idea why OSG cannot my plugins?

Regards,

Antoine.[/code]

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Re: [osg-users] Issues with Qt based application and occulusion queries

[Daniel Trstenjak]

Hi,

did anyone ever had problems with OpenGL occlusion queries, either by
using GL_NV_occlusion_query or GL_ARB_occlusion_query directly, or
by using the OpenSceneGraph functionality?

I'm just hoping to get some hints where to look after.

Greetings,
Daniel
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