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Use a primitive cube to draw a bounding box?

Last post 11/4/2009 11:50 PM by Matt Dent. 4 replies.
  • 11/4/2009 7:27 PM

    Use a primitive cube to draw a bounding box?

    Reply Quote
    I was intrigued by the 3D Primitives sample, and its promises of being able to draw bounding boxes. The only problem I have is the actual drawing of the bounding boxes. How can I use the cube primitive to draw a bounding box that I give it?
  • 11/4/2009 8:00 PM In reply to

    Re: Use a primitive cube to draw a bounding box?

    Reply Quote
    I recommend checking out the XNA Wiki, they have some excellent code for doing that very thing.  I'm using it for debugging...
    Brian
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  • 11/4/2009 9:09 PM In reply to

    Re: Use a primitive cube to draw a bounding box?

    Reply Quote
    You control the size and position of the primitive by what world matrix you pass to GeometricPrimitive.Draw.
    XNA Framework Developer - blog - homepage
  • 11/4/2009 9:52 PM In reply to

    Re: Use a primitive cube to draw a bounding box?

    Reply Quote
    I use lines as on the WIKI link above. Found it impossible to get the alpha blendng right using 8 vertex solid cubes.
    Game hobbyist hell-bent on coding a diabolical Matrix
  • 11/4/2009 11:50 PM In reply to

    Re: Use a primitive cube to draw a bounding box?

    Reply Quote
    Thanks a lot guys, I think I got it to work.
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