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Why does my 8x10 render take so long?

jenniferhugheyjenniferhughey Posts: 404
in Technical Help (nuts n bolts)

For some reason, my 8x10 renders (portraits) take forever, and look pretty good before they finish so I invariably cancel out. I use professional lighting packs and the images are dome and ground off. (I need Png's)

Any settings I can mess with to make render time shorter? They take around an hour and a half to fully render whereas my full length renders(set up same way) are much shorter..

closeup.png
890 x 1152 - 3M

Comments

  • ToborTobor Posts: 2,300

    The closer you get to a figure with a lot of textural detail the longer it will take. To test that it's not the lighting, pull back to a full figure shot, and render that. Compare the times to see what the closeup is adding.

  • jenniferhugheyjenniferhughey Posts: 404

    Ah, okay, that's what I was thinking. This is a very high res gal..thank you!

  • jenniferhugheyjenniferhughey Posts: 404

    I don't think it attached her..

    redhead_close.jpg
    2400 x 3000 - 710K
  • ToborTobor Posts: 2,300

    The hair is probably contributing quite a bit to the render times. For a baseline, you can try rendering without the hair to see what you get. Objects like hair that use transmaps are known to consume lots of machine cycles. And you have the camera zoomed in ...

  • JimbowJimbow Posts: 557

    As counterintuitive as it might seem, triple or even quadruple the render size and reduce the size of your render to the size you want later. I've had render times cut by two thirds with only needing to resolve to 10%. When you reduce the size in post, it takes care of the remaining fireflies. This trick is used by professionals using iray.

  • SpottedKittySpottedKitty Posts: 7,232
    jennysmi said:

    For some reason, my 8x10 renders (portraits) take forever,

    This might also be affecting your render time. Eight what by ten which? If it's 8x10 inches, that's a meaningless measurement to DAZ|Studio — the only measure it understands for render size is pixels, so you can have 800x1000 or any multiple of that. What size do you have in the Render Settings?

  • ToborTobor Posts: 2,300
    edited March 2017

    I read "8x10" as a colloquialism for a photo portrait, and doesn't itself imply a size in pixels. The fact that the OP gets faster renders of the same characters at full length suggests it's a texturing closeup issue causing slower processing. But you make a good point that size matters. And they say it doesn't! smiley

    Post edited by Tobor on
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