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hi, embree is for shure not the fastest bvh builder around
but beating a low quality gpu-based bvh builder is impossible
on cpus today.

jbikker wrote: ↑

Thu Sep 05, 2019 5:31 pm

4G is using the latest Lighthouse 2, https://github.com/jbikker/lighthouse2 .

yes, i had a look and browsed thru the code. good work as always. mp

as the discussion is going on, day by day, here is a statement: 10grays is a tech. possible limit for non-realistic scenes: that is: a single triangle without shading. in practice you get something around 1-3 grays and cannot do something useful with it without any filtering as post-proc. these numb...

know it. nothing special to think about. more or less simple crap.

hi, i must warn you: this forum is more or less dead.

doing this now > 20 years all this ads seems to be odd (at least for me).
every time i look into the details of impl. its boring crap and never optimized for the used hw.

so the good old times are over since years...

again: this is 10 years old crap. go with state of the art -> google is your friend !

just a quick update: we did some tests on intels knights mill. to make it short: the machine is boring.

no perf. progress at all. all the vector ext. are simple crap. for graphics intel seems to be a dead end. gpus will dominate the next years.

so all the cpu stuff was wasted time.



mp

sorry, but absolutely useless. the n+1 invocation of an "auto-vectorizer" ... and pathon ? what is it really good for ?

It took some time after we build up our first coherent traversal kernel for avx512 http://ompf2.com/viewtopic.php?f=3&t=2103 to get a competitive incoherent kernel ready for prime time. Here it is ! For the benchmark we used a full pipeline available easily on any architecture: 1) camera ray generat...