Battery life and GPU memory

Although bandwidth/network speed and processing time are the factors that usually affect the performance of Three.js games the most, battery life and memory constraints may also come into play. For hardcore games, you may be able to assume the user is plugged in, but more casual games should be aware that more processing typically equates to more battery drain. On the memory front, the question is less about storage space and more about the graphics card having a limited amount of embedded memory with which it can perform fast computations. The main thing you can do to limit how much of the GPU's onboard memory you consume is to use compressed textures. (Normally, images such as JPGs and PNGs are decompressed before being sent to the GPU, but compressed textures use a special format that allows the GPU to hold them in embedded memory in a compressed state. Since the compression only matters for the GPU, it doesn't actually save network bandwidth.) Three.js supports...