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How to render at 300 dpi in DAZ

spiralmirrorspiralmirror Posts: 3
edited December 1969 in Technical Help (nuts n bolts)

How can I render at 300 dpi in DAZ? Can't find any option to change from 72dpi.

Comments

  • Jonathan BJonathan B Posts: 114
    edited October 2014

    There used to be several discussions about this on the older forum site, but I don't know where they have been archived. There is a lot of confusion out there about DPI and how it relates to a purely digital image.

    Generally, for digital images, DPI (or more properly pixels per inch (PPI)) is only useful when you are scanning or printing. The best way to deal with this in DAZ is to determine the final printed size you want, multiply those dimensions by 300 and render at that size.

    Say I want to print an 8"x10" image at 300 DPI. I will render that image at 2400 pixels by 3000 pixels. Then if the printer (printing company not computer hardware :) ) needs the DPI set in the file, I will use an image editor to set the DPI on the file without scaling the image.

    http://www.johnny-pixel.com/avm/dpi_confusion.php seems to have some good explanations.

    Post edited by Jonathan B on
  • spiralmirrorspiralmirror Posts: 3
    edited December 1969

    Thank you for the info!

  • prixatprixat Posts: 1,588
    edited October 2014

    You'll have to do the calculation yourself based on the size you're aiming for in inches, then put the results into the render settings in pixels.

    Crossposted!! :-)

    Post edited by prixat on
  • Jonathan BJonathan B Posts: 114
    edited December 1969

    spiralmirror said:
    Thank you for the info!

    You're welcome! I've had to deal with this a lot over the years, especially when trying to convince digital photographers that I just need an 800x600 image for a web site and that I don't really care about the DPI.

  • prixatprixat Posts: 1,588
    edited October 2014

    jmbeach said:
    ...trying to convince digital photographers that I just need an 800x600 image for a web site and that I don't really care about the DPI.

    How did you manage that?
    I'm still trying to get that across to a designer who comes from designing for print, he still faints at the thought of users choosing their own font size. I dare not mention the web browser re-flowing his precious layout. :)

    Post edited by prixat on
  • Jonathan BJonathan B Posts: 114
    edited December 1969

    prixat said:
    jmbeach said:
    ...trying to convince digital photographers that I just need an 800x600 image for a web site and that I don't really care about the DPI.

    How did you manage that?
    I'm still trying to get that across to a designer who comes from designing for print, he still feints at the thought of users choosing their own font size. I dare not mention the web browser re-flowing his precious layout. :)

    Well, we've come to an understanding. I gave up trying to explain whole "DPI does not matter" and just ask for specific pixel sizes. He uses the PhotoShop "Export for Web" method to save the files and usually I can get something usable from the results. He does wonderful, very artistic work even when he makes his own prints on his Epson ink jet.

    My favorite are always the web created in Microsoft Publisher which try to position elements down to the fraction of inch on the screen.

  • Tramp GraphicsTramp Graphics Posts: 2,411
    edited December 1969

    That Johnny Pixel.com essay was funny, and very true. The only real reason why someone should be asking for a file at a certain DPI is if they need it for print, and, in that case, they'd also need to give you the dimensions the image needs to be at its final printed size. And in these instances, they're not interested so much in the file size, but rather the size of the image as it will appear in print, and thus, they need it to be a specific set of "physical" dimensions at a certain print resolution. (let's say 11" x 17" at 300 dpi). Of course, an image that size would have a massive number of pixels, and would take up a lot of file space on disk, possibly more than most email systems could handle, so it's typically better to either deliver it by hand or send it via snail-mail, or, if possible, compress it into a small enough ZIp file that could be emailed.

  • FishtalesFishtales Posts: 6,119
    edited October 2014

    A long while ago I came across this site.

    http://www.scantips.com/no72dpi.html

    Ever since I make my images for screen viewing, on forums or my website, to the size I need and at 0ppi in IrfanView or 1ppi in Photoshop, because it doesn't allow 0ppi :-) Anyone with a screen resolution greater than the size of the image will see it exactly the same except the higher the screen resolution the smaller the image. Try enlarging it and it will pixelate. I usually go for a 1000 pixels so if someone tries to print it at 300dpi it will be 3.3 inches wide.They could try printing it at 10 inches wide but at 100dpi the print quality wouldn't be great. You also have two remember that ppi and dpi are to different measurements. One is video the other print.

    Post edited by Fishtales on
  • spiralmirrorspiralmirror Posts: 3
    edited December 1969

    Thanks for all the feedback! Greatly appreciated!

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