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  buffers/textures to mimic layers?  (Read 543 times)
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Offline girvine

Junior Member




Java games rock!


« Posted 2005-02-21 07:37:48 »

Perhaps better directed to an OpenGL specific forum, but since I read this forum avidly I'm asking my fellow JOGL users.  Smiley

My application is a top down view of "the world".  I have many different graphical objects that are displayed.  Static maps (that can be turned on and off) that can be filled or unfilled polygons/arcs/circles with over 2,000,000 vertices total, symbols representing 5000+ objects that move regularly (~5seconds but can also be rotated on it's centre point via mouse).  It may also be required to display raw video information a-la low frame rate video.

My question is, due to the predominantly static nature of some types of displayable data, and relatively dynamic nature of other parts, would I benefit performance-wise by drawing the different types/layers to different textures or buffers and overlay the flush the various buffers to screen each redraw, so that I only have to physically redraw the objects (to the buffers) when a piece of data on that buffer has changed?

Note also the resolution may well exceed 2048x2048, which in merely stating it reminds me that textures can't exceed this size.

Thanks for any advice.
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