can i use a 640/480 saved irradiance map for a higher resolution image lets say for an image size of 2016/1740 ?
you can but it will look bad … the general rule i stick to is if you have a map of 640/480 then you can render out at 1280/960… so double up basically. 
thank you
so what will be the size i need for the irradiance map to be in order to render a 20161740 and also what size of irradiance for an image size of 28362126.
and do i need to fit them in some wey or will they auto fit together in the final render?
Like Natty said, just divide the resoslution by two and there you are.
You can use the largest irradiance map for both the renderings.
Erik
ok
erik but i dont realy know how to do it
do i need to do somthing in orther to fit them? or will they auto fit wen i render it from the irradiance map i saved earlyer?
You don’t need to do anything, just point to the saved irradiance map and vray will do the rest for you.
Erik
…i send all my renderings to my FARM, renderings are 2048X standart. For exterior it takes about 30-60 minutes with 3 IRMAP passes as it is. (Prescott 2.8Ghz) So why should i save, wait, load, resubmit my rendering job just to save some minutes?
30 - 60 mins for a 2048… gees .. what are the quality of the renders ?
Excuse me ezrithm
About what u said
But 1.09.03 doesn’ t support distributed GI on the net-render as I know (maybe I’m wrong but I’m near to be sure) U have to calc an irrad map on one pc and then give the vrmap to all the pc on the net and active the net render with dr and render at double resolution respect the previous gi calculation!!
If u have another technique please explain to me I’m curious
And how could u get your so low rendering times ? LOw parameters?
Mine exteriors at 2048 tooks always 24hours for a 2048x1536pixel resolution
Bye and thanks in advance
ok…here are few examples of a 30min render…
Almost default GI settings, 1 pass less tho… i dont think 4th is nessesary here. FB 1.0, SB 1.0, SphSubDiv 70 thats all…
well, i didnt say i use distributed rendering for 1 frame.
I submit an “animation” of 5-10 frames (differnet angles) to the farm (20PCs) only 10 ofcourse pick up the JOB and in 30-60 minutes return ALL together different angles for me to choose from.
So each PC calculates its own IRMAP for stills… but when it comes to animation, i submit IRMAP 320X280 with global reflections “OFF” , per 20 frames to ONLY 1 PC as a critical JOB. I takes about 12-24 hours for a 5000 frame animatrion.
Then i throw the same job taking the IRMAP from the networked location and render 720X576 with all stuff switched “ON” - results are quite good 
and each frame takes about 5-6 minutes!!!
HERE are EXAMPLES:
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