So far, the new version works pretty well with just the on-board graphics chips in both my HP machines. There are still a lot of objects to add, but right now I'm getting over 40 frames per second at 1920x1200x16. These cards support vertex shaders but not pixel shaders. There is one subtle effect I'd like to use which would require pixel shaders, but I'll probably write it so that it's just not used if the machine doesn't support it.
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