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Re: PATCH: Raytracing - a more pleasing way sequencing blocks to render ?


On 01/05/2019 13:57, Mário Luzeiro wrote:
Hi John,

yeah the Morton code is to improve cache hits.

Regarding the speed test, since OS are multi-tasking there could be some interference on the results so 1s difference is not a very measurable difference ( 4% ).
A possibility would be to run the same scene multiple times and make an average of the times.

Sure, it was just a fun observation. It does change a bit from run to run, but I was at least expecting a small penalty. Next up, wipes[1] and then perhaps Snake :-D

A more robust benchmarking harness would probably be the way to go if we really were serious about putting the pedal to the metal here.

But I think the centre-first approach is certainly better usability, but I'm unsure about the checkerboard.



[1]: https://www.youtube.com/watch?v=cGqAu9gj_F0

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