View Full Version : Selection/Picking question---help?
how will selection/picking work for an imported drawing...e.g. i want to slect/pick drawing in my application that was created in another software such as AutoCad or Paint
06-26-2007, 01:25 AM
Define drawing, picking operates on geometry.
If you want to select rendered image portions you would need to render outlines of those selectable portions as geometry.
To pick stuff in a 2D 3D scene, you set the viewport to the pick region, then draw the scene. As you draw the scene you set a unigue hit identifier for each pickable object in the scene. If the objects are visible they will leave a hit code in the pick buffer.
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