[osg-submissions] FrameBuffer AntiAliasing with OSG 2.5

[paul1492 at yahoo.com]

I've attempted to add FrameBuffer AntiAliasing to OSG... I did this before with OSG 1.2 and now my company has found the money to pay me to look into adding it to the latest OSG.

However, since I do not have access to SVN (not approved use by my employer :-(), I've made the required changes to OSG 2.5... I don't think much has changed in this area since then...

Like last time, I've attached the NVIDIA test program "simple_framebuffer_object.cpp".
I've done my best to support a "fallback" implementation if the hardware doesn't support it...
To support frame buffer AA, I've extended the camera->attach() function to support an additional (optional) 2 arguments. They are:  Coverage AA Samples and Depth AA Samples.
Here is how I call it:
   camera->attach(osg::CameraNode::COLOR_BUFFER, texture,
                             0, 0, false,
                             mCoverageAAMode, mDepthAAMode);

Feel free to make any changes.
Paul Palumbo



      
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