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Activity Forums Maxon Cinema 4D What is the focal distance of a sky object?

  • What is the focal distance of a sky object?

    Posted by Jareb Coupe on March 21, 2016 at 11:46 am

    Hi guys!

    I’m trying to accomplish what is probably very simple. I’m using a physical camera, with f-stop and focal distance, to focus on a small object with reflectivity. I’d like to start, however, focused on what is being reflected off the object. Easy – just set the focal distance to be the combined distance between the object, and the reflected object.

    But what do you do if the reflected object is an HDRI sky object? It seems like it has an infinite focal distance. How can I focus on the sky, while still having the foreground object nice and blurred?

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    Hobbyist level – R17

    Jareb Coupe replied 10 years, 1 month ago 2 Members · 2 Replies
  • 2 Replies
  • Adam Trachtenberg

    March 21, 2016 at 3:31 pm

    One answer would be to use a sphere instead of the sky object.

  • Jareb Coupe

    March 26, 2016 at 8:17 pm

    Just to circle back here for future readers – what Adam suggests is probably the only working solution. I didn’t want to go this route because it’d mean I’d be rolling the dice for how the reflections currently lined up. But ditching the Sky object and going with a Sphere was the only workaround for focal distance – so I bit the bullet.

    Thanks Adam!

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    Hobbyist level – R17

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