Is there a jmonkey build which uses doubles instead of floats?
i need more precision
No, if you need more precision you probably do it wrong and you dont partition your space.
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theres another thread about this where it is mentioned that extreme distances (30,000 meters or so) when seen through magnified vision would be better calculated using double precision, even though transformed back to single when fed to the GPU… all way above my head but of interest to my project
Most GPUs don’t support doubles so the driver will convert the data to floats and send to the GPU. If you put doubles data, the performance might even be much worst.
Also, this thread was 6 month old. 