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On 03/07/2018 10:47 AM, clipka wrote:
> Am 07.03.2018 um 15:18 schrieb William F Pokorny:
>> On 03/07/2018 08:23 AM, William F Pokorny wrote:
...
>>
>> Use +wt1 if using crand and you want 'frame/view' renders to be the same
>> render to render.
>>
...
>
> Maybe we can concoct something that will keep the crand stable when
> using the "+HR" option. While currently only having an effect on
> radiosity, the intention of the switch was to also change the behaviour
> of any other stuff that's affected by thread assignment and render block
> ordering.
>
> My suggestion would be to re-seed the crand noise generator each time a
> new block is started, maybe using a seed based on the block number in
> order to prevent visible repetitions.
>
Thanks.
I think using "+HR" here a good idea. Your approach though looks low
cost cpu wise to me though a more complicated implementation. Maybe fast
enough the more stable way is how crand could work all the time...
I'll open up a github issue including a pointer back to this thread when
I get the chance.
Bill P.
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