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Clear OpenGL command stack

Started by TuLKaS Jan 30, 2006 at 8:40 AM 0 replies 350+ views

Original Post

Jan 30, 2006 at 8:40 AM

Hi all, I'm rendering the geometry in a low mode, but when the user stops I switch the render mode to high (this render can last 15 seconds per frame). If the user moves during the render, I want to cancel the render of the current frame (clearing all the geometry send to OpenGL) and continue the render in low mode (without waiting for the current frame being rendered). Any idea? (I'm trying to improve my english :P)

Brother Bob

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Brother Bob

Jan 30, 2006 at 8:49 AM

Nothing OpenGL can help you with. You just have to stop feeding stuff to OpenGL. For example, you could draw the scene is small parts, and check for user inputs or whatever between parts. If something changed, stop drawing. However, what you already sent will be drawn.

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