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2008-10-20T09:59:13.980
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The quick solution: <ul> <li>Create a geometry matrix of tiles (quads preferably) so that there is at least one row/column of off-screen tiles on all sides of the viewable area.</li> <li>Map textures to all those tiles.</li> <li>As soon as one tile is outside the viewable area you can release this texture and bind a new one.</li> <li>Move the tiles using a modulo of the tile width and tile height as position (so that the tile will reposition itself at its starting pos when it have moved exactly one tile in length). Also remember to remap the textures during that operation. This allows you to have a very small grid/very little texture memory loaded at any given time. Which I guess is especially important in GL ES.</li> </ul> If you have memory to spare and are still plagued with slow load speed (although you shouldn't for that amount of textures). You could build a texture streaming engine that preloads textures into faster memory (whatever that may be on your target device) when you reach a new area. Mapping as textures will in that case go from that faster memory when needed. Just be sure that you are able to preload it without using up all memory and remember to release it dynamically when not needed. Here is a link to a GL (not ES) tile engine. I haven't used it myself so I cannot vouch for its functionality but it might be able to help you: <a href="http://www.mesa3d.org/brianp/TR.html" rel="nofollow noreferrer">http://www.mesa3d.org/brianp/TR.html</a>
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1. POLarge scrolling background in OpenGL ES
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1. USBurre
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1. COI really don't think that tile rendering library is what the original poster is after. That library is for rendering scenes into huge pixel resolutions, more than OpenGL would support in a single pass.
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2. COYes, the library does something different than what I need, but splitting the background into smaller tiles might be a good idea. (Thanks.)
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