Ray-Tracing : 1084


CAD / Ray-Tracing / 1084	1083 \| 1085

Subject:	Re: From Screen to Paper Printing (PPI/DPI Question)
Newsgroups:	lugnet.publish, lugnet.general, lugnet.cad.ray
Date:	Thu, 20 Dec 2001 06:44:35 GMT
Viewed:	79 times

"Bram Lambrecht" <bram@cwru.edu> wrote in message news:000001c188be$d8c2e6a0$61071681@bl... > Tim Courtney writes: > > POV doesn't have a 4800x4800 option in the Render>Edit > > Settings/Render window, so here's how to get it listed there. > > You may want to make it 6400x4800 or 4800x3600 so that the render isn't > distorted. If you want a square picture, you will need to modify the > camera object so that it renders to a square aspect ratio. > Millions of pixels also take a while to render, so let it run for the > night. Complexity of the scene also makes a big difference... > I had a 15000x5000 render that took 19 hours, and a different 1280x1024 > render that took 15... (both on my 933 MHz 384 MB RAM computer). > --Bram Good point. Since I've never tried to render a square image, I've never run across this. I'm curious though, why do you need to do this? I figured it would be like looking through a window - it doesn't matter what shape the frame is, what you see on the other side has the same proportions. I guess to me at least (relatively inexperienced with POV - all I do is modify camera positions and the background color), it doesn't make much sense. -Tim

Message has 2 Replies:

		Re: From Screen to Paper Printing (PPI/DPI Question)
(...) No, Bram is 100% correct -- the resulting image is distorted unless I account for the proportions of the image POV expects to render. -- Hop-Frog (23 years ago, 20-Dec-01, to lugnet.publish, lugnet.general, lugnet.cad.ray)

		RE: From Screen to Paper Printing (PPI/DPI Question)
(...) No, POV-Ray's rendering engine doesn't really care what the dimensions of your image are. It only cares about what you tell it the aspect ratio is. If you render with a default camera (4/3 ratio) to a square output image, you'll get an image (...) (23 years ago, 20-Dec-01, to lugnet.publish, lugnet.general, lugnet.cad.ray)

Message is in Reply To:

		RE: From Screen to Paper Printing (PPI/DPI Question)
(...) You may want to make it 6400x4800 or 4800x3600 so that the render isn't distorted. If you want a square picture, you will need to modify the camera object so that it renders to a square aspect ratio. Millions of pixels also take a while to (...) (23 years ago, 19-Dec-01, to lugnet.publish, lugnet.general, lugnet.cad.ray)

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