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08/14/2009 at 01:59AM PDT, ID: 24652309
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7.0

Can you draw an image directly onto a Renderbuffer Object?

Asked by vedeveloper in OpenGL Graphics & Game Programming, Microsoft Visual C++.Net

Tags: C++, OpenGL, Visual Studio, Graphics, Off Screen Rendering, Buffers

Using OpenGL and I'm trying to draw an image off screen. I originally tried hiding the window but this only resulted in the saved image being a screen grab of whatever was being shown at the windows coordinates.

I'm wondering if I can use a Renderbuffer Object to solve the problem. I'm not sure if this is only used to render already existing images or if it can be drawn onto directly ( i.e. glBegin()......glEnd() ).

Any other suggestions of how I might be able to draw and image off screen and save it would be welcome as I'm quickly running out of ideas.

P.S. I know that there are Graphics Engines out there that allow you to do this with a simple function call but I'm not looking to go down that route at the moment.

Thanks.
 
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About this solution

Zones: OpenGL Graphics & Game Programming, Microsoft Visual C++.Net
Tags: C++, OpenGL, Visual Studio, Graphics, Off Screen Rendering, Buffers
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Solution Provided By: ikework
Participating Experts: 1
Solution Grade: B
 
 
 
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