Granyte and cie

I added quite a lot of new stuff to my planet renderer first i moved the noise algorythm from the cpu to the gpu the algorythm is still slow but it allow for the generation of 6 height map of 2048*2048 in less time then it took the cpu to generate a single 512*512 map i also completed the implementation of the atmospheric scatering the parameter are a little unbalanced but i though it looked cool I also integrated physic accurate with the mesh using bullet physics here is a short video Sadly i had to disable the physic as bullet does not play wel with shape shifting mesh.

here comes atmospheric scattering this implementation is based on Sean O'Neil openGL implementation wich has been ported to directx for ogre by HexiDave . The original converted implementation was vertex shader based for mie and rayleight color calculation and mixed them in pixel shader to try to obtain a smooth result this made sens when Sean O'Neil implemented it on the merly begning graphic hardware but it gave horrible artifact unless you have a over tesselated sphere irrlicht's 256 polygon sphere were just not cutting it. So i updated the code to make all the calcultations in pixel shader giving a much smoother result independent of the poly count of the sphere.   And for the sake of it a nice sunrise at 1920x1080 (i can't take screen shot in full screen -.-) I just need to verify the license and i will release the completed shader code with constant what is messing and why you most likely are not getting it to work in case you stumbled on my ...