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you can use memalign to allocate memory in ram that is 16 byte aligned

pointer = memalign(16, size);

if you have lighting enabled you need to specify normals for your objects.

yes, the opengl actually works quite well, and if you already know opengl it is quite easy to use. At the moment textures also work, however I believe you have to load them as raw files in a specific format... the most i've done with textures so far is replacing the one thats used in the cube sample...