I think the crossover point I mentioned earlier will come when GPUs become general-purpose enough to allow massively parallel voxel rendering implementations
Indeed. This is certainly possible with modern GPUs, and has been for a while. Voxels are pretty well-suited to GPU rendering. See the research I linked to in another reply in this thread.
I didn't get around to reading their entire article, but if they call it a CPU-only technique they are behind the curve instead of ahead.
Well on the other hand, if they can already do this with just CPU, it can only get better as they unleash the power of a GPU as well, right? Especially as you say, voxels are pretty well-suited to parallel rendering like that.
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I think the crossover point I mentioned earlier will come when GPUs become general-purpose enough to allow massively parallel voxel rendering implementations
Indeed. This is certainly possible with modern GPUs, and has been for a while. Voxels are pretty well-suited to GPU rendering. See the research I linked to in another reply in this thread.
I didn't get around to reading their entire article, but if they call it a CPU-only technique they are behind the curve instead of ahead.
Well on the other hand, if they can already do this with just CPU, it can only get better as they unleash the power of a GPU as well, right? Especially as you say, voxels are pretty well-suited to parallel rendering like that.