Large render sizes

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Old 01 January 2013   #1
Large render sizes

Hi,
I'm rendering a 19 000 X 19 000 image , 3h to render the image (pixels) but the picture viewer has been churning on for an extra hour now, I hear the disk being accessed to no end, cinema is rendering at 32bits how big is that internal file? knowing I'm only going to save an 8bit tiff is there a way to limit internal file size?
Thanks
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Old 01 January 2013   #2
Calculating the needed memory isn't that hard
With 32 bit per pixel thats 4 byte per pixel per color. @ 19K x 19K you get roughly 4 GB.
For every 32 bit layer you need the same amount of memory again.
Masks and non hdr layers are smaller.
I wouldn't try such a rendering with nothing less than 32 GB of RAM, otherwise you run into serious virtual memory swapping issues, which seems to be the case for you.
Cheers
Björn
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Old 01 January 2013   #3
Thanks Srek,
I was finally able to save the file 2.5 hours after the last pixel was rendered. I'll have to go shopping for more ram.
Can't cinema's default depth of 32Bits per channel for calculating be reduced?
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Old 02 February 2013   #4
No, that would require a complete second build of CINEMA 4D that uses a lower precision for calculation. Also you wouldn't like to see the results since it would be full of artifacts.
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Old 02 February 2013   #5
There is a tile_smoething camera setup in the preset lib for this, or you could also just use the camera film offset to do it manually. The basic idea would be to split image into smaller parts, rather than rendering one big image.
 
Old 02 February 2013   #6
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