thanks alot 
. ive to make perfomance tests -> compression speed and decompression.
i cant find a function to kick the texture buffer in the engine. so, i wanna load that stream into another panda app by setting a flexible refreshrate, but panda buffers the texture and not refreshes it!
about the result which i wanna test:
its years ago where i start to think on that way of relation rendering (i got this idea by rebuilding a city in 3d) so why should engine have to render everything which is in view for each frame??? its humbug!! hidden surface elimation is such great in combination with dynamic distance refreshrenderer 
-> like models which overlap a distance from ~ 50 meters to render just ~20fps at 100 meters ~15fps at 150 m ~ 10fps … and project those renderd objects on a billboard (plane) . the result should be a dynamic realtion rendering. to get a complete city into the screen. i hope 
greetz
dirk