photon map question 2004-04-12 - By Benjamin Huber
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Thanks for the info. I will look into scripting my way out of it ;)
Bernard - yes, normally, just rebuilding the PhotonMap each frame would be the
obvious approach, given that it changes from frame to frame. However, the thing
is that if I render through our rendering pipeline, the PhotonMap gets written
in one central location, not on the individual render node, so you end up
having, say, 20 instances of mental ray trying to write 'PhotonMap' or whatever
the file name in the same location, which obviously causes all kinds of trouble
. So, if each frame had a different photon map filename, this would be a non
-issue. The other approach would be to get MR to generate the photon map locally
on the render machine... I'll look into that as well.
Anyway, thanks for the input!
-ben
-- --
ben huber
bhuber@(protected)
-- --
-- --Original Message-- --
From: owner-xsi@(protected) [mailto:owner-xsi@(protected)]On Behalf
Of Schoenberger
Sent: Saturday, April 10, 2004 5:01 PM
To: XSI@(protected)
Subject: RE: photon map question
Perhaps if you render seqeuntial mi-files (command-line option).
Otherwise a render script or a on frame script.
The on-frame script had some problems rendering on multiple machines (I
tested it once in one of the last version), so be careful. You should
test it with a simple script that shows the current frame number (text
object). Otherwise there are some tricks to use scripted operators for
on-frame updates.
Holger Sch�nberger
technical director. animator. freelancer
The day has 24 hours, if that does not suffice, I will take the night
>> -- --Original Message-- --
>> From: owner-xsi@(protected)
>> [mailto:owner-xsi@(protected)] On Behalf Of Benjamin Huber
>> Sent: Saturday, April 10, 2004 3:07 AM
>> To: XSI@(protected)
>> Subject: photon map question
>>
>>
>> Hi all,
>>
>> Is there a way to add a frame extension to photon maps so
>> that MR generates an individual map for each frame instead
>> of just one for the whole scene?
>>
>> I have a scene with photons changing from frame to frame
>> that I will have to re-render a lot and I would like to
>> re-use the photon maps.
>>
>> thanks,
>>
>> -ben
>>
>> -- --
>> ben huber
>> bhuber@(protected)
>> -- --
>>
>>
>>
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