Canvas troubleshooting: Difference between revisions

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=== Serializing a Canvas to disk (as raster image) ===
=== Serializing a Canvas to disk (as raster image) ===
The following C++ code can be used to easily serialize a Canvas to disk - this can be useful for making bug reports, without having to take/edit a full screen shot, it's based on the existing screen shot code that's been slightly adapted:
In OSG land, the following C++ code can be used to easily serialize a Canvas to disk - this can be useful for making bug reports, without having to take/edit a full screen shot, it's based on the existing screen shot code that's been slightly adapted:
<syntaxhighlight lang="cpp">
osg::Image* shot = new osg::Image();
shot->allocateImage(width, height, 24, GL_RGB, GL_UNSIGNED_BYTE);
camera->attach(osg::Camera::COLOR_BUFFER, shot);
osgDB::writeImageFile(*shot,"canvasImage.png");
</syntaxhighlight>
 
Adapting this to render a Canvas to an image, and expose the whole thing via cppbind, gets us here:
 
<syntaxhighlight lang="diff">
</syntaxhighlight>
 
And here are the corresponding changes for $FG_SRC:
<syntaxhighlight lang="diff">
<syntaxhighlight lang="diff">
</syntaxhighlight>
</syntaxhighlight>

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