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[FUT lugnet.off-topic.geek]
I'm going to be printing a rendering of my current architecture on a 24"
plotter, so I need to how large I should render the image. The maximum color
resolution of the plotter is 300x300 dpi. However, IIRC, since printers
actually drop 4 or so ink droplets for each pixel, a 300 dpi image is kind of
excessive. Does anyone know the minimum dpi I can render my image and still
take advantage of the 300 dpi of the plotter?
Details: HP DesignJet 750C Plus (D/1A)
Final plot size: 20"x60"
preliminary rendering: http://home.cwru.edu/~bxl34/architecture/asfront.jpg
more images of the building:
http://home.cwru.edu/~bxl34/architecture/proj4/
http://home.cwru.edu/~bxl34/architecture/as3d.jpg
As you can see, 60"x20" @ 300 dpi would be 18000x6000 pixels, which could
potentially take very long to render in POV-Ray...
Thanks,
--Bram
Bram Lambrecht
bram@cwru.edu
http://home.cwru.edu/~bxl34/
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Message has 4 Replies:
 | | Re: DPI help
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| (...) Depends on the driver, I think. I know HP inkjets actually change ink dot size to achieve a better appearance without needing higher resolution.... My suggestion would be to experiment -- render something simple and try printing it out at (...) (24 years ago, 28-Apr-01, to lugnet.off-topic.geek)
| | | Re: DPI help
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| (...) Render at 1/2 the target DPI as if going to 150 LPI Film. 9000x3000 and use Supersampling to smooth out any blends and over hard edges. Best DaveG (24 years ago, 28-Apr-01, to lugnet.off-topic.geek)
| | | Re: DPI help
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| (...) All depends on your viewing distance... If it's a poster to hang on the wall, intended to be viewed at 5 feet away or more, you can easily get away with 150x150 dpi, and often 75x75 dpi. Also depends on how quick/abrupt your color changes are, (...) (24 years ago, 4-May-01, to lugnet.off-topic.geek)
| | | Re: DPI help
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| (...) From some test prints, I saw that the DPI isn't going to matter very much, so I went with 250 DPI to save some rendering time. However, it's taking almost as long to print as it did to render. The image is about 200 MB (uncompressed), but the (...) (24 years ago, 8-May-01, to lugnet.off-topic.geek)
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