Can not free memory 2005-06-15 - By kim aldis
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Common issue for people trying to render images for print from mental ray.
You're trying to render a roughly 11K image which is huge. 11338*17006*4 =
735 Mb, asuming 1 Byte per pixel per channel. But, mental ray stores images
internally in floating point format, 32 - I think - bits. That comes to
close to 6 Gb, rather larger than Windows 32 can handle.
You have options:
Render in slices and patch together in Photoshop
It's debatable whether even print needs an image of this resolution when the
source is digital and the antialiasing is good. You'll get away with quite a
lot. Consider rendering much smaller and using Photoshop to upsample for
your printer.
> -- --Original Message-- --
> From: owner-xsi@(protected)
> [mailto:owner-xsi@(protected)] On Behalf Of olivier jeannel
> Sent: 15 June 2005 12:31
> To: XSI@(protected)
> Subject: Can not free memory
>
> Hello all,
>
> I'm trying to render a big image for print. It's a 20x30 cm
> that should be croped to 4x3 later on.
>
> (I was asked to render it 4x3 300 dpi, but it's so large
> that I don't think Photoshop would be able to open it. So I
> went for 4x3 72 dpi.) At this size I have a 11338*17006
> pixels image (20x30 that will be cropped 4x3) to render (in
> several passes).
>
> MR crash and says : Can not free Memory...
> I was wondering if I could tweak some BSP, and if someone
> could give me some basic settings to save some ram.
>
> Right now, I'm trying to do it direct 4x3 (11338*8525), seems
> to work, but I'm sure the client will bug me...
>
> Another question will be what size (in pixels) do
> print-people use when they are asked to make some 4x3 stuff ?
>
>
> Thanx a lot for any info !
>
> Dual Xeon 2.6Ghz, XP SP2, 1Go Ram
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