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Rendering correctly below ground plane?

TurnerTurner Posts: 116
edited December 1969 in Carrara Discussion

Hi -

I'm trying to render a few objects that extend below the ground plane. I have sky enabled.

Anything below the ground plane renders incorrectly - just white.

I remember a setting to fix this -somewhere- but can't find it now!

Any help appreciated....

thanks,
Andrew

Comments

  • DUDUDUDU Posts: 1,945
    edited December 1969

    Are you sure that there is not a lamp which lights with a very high value or the global illumination could be to hight in the scene edition tab?
    Could you make a sceenshot ?

  • 3DAGE3DAGE Posts: 3,311
    edited December 1969

    HI Turner :)

    check your scene and settings,. Objects below the ground should render correctly.
    If you take the example of an Aquatic scene,. the Ocean (or Plane) would be at floor level, and the scene objects would be below that.

  • evilproducerevilproducer Posts: 9,050
    edited December 1969

    Turner said:
    Hi -

    I'm trying to render a few objects that extend below the ground plane. I have sky enabled.

    Anything below the ground plane renders incorrectly - just white.

    I remember a setting to fix this -somewhere- but can't find it now!

    Any help appreciated....

    thanks,
    Andrew

    I think the control you're thinking of is the Enable Ground checkbox in the scene's effects tab under atmosphere when the realistic sky option is enabled. Not sure where the white is coming from unless you changed the color tile. It is brown by default.

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  • evilproducerevilproducer Posts: 9,050
    edited August 2014

    Just a little aside about the interface. The horizon altitude is in inches in a medium scaled scene (if you're not using metric). If you want to adjust the horizon altitude in feet, just type in ft after the value for the number of feet. So if you wanted to lower the horizon altitude by 50 feet, you would type, -50 ft and hit return or enter. Carrara will convert that value to inches, so it would read -600 in.

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  • TurnerTurner Posts: 116
    edited December 1969

    Hi all-

    Sorry for the late reply, I got bogged down at work yesterday...

    Dudu: yes, lighting is OK.

    3DAGE: yup - everything set up correctly!

    Evilproducer: MAYBE! Of course I left my project at work... that may be it, though. I have tried altitude settings before (especially when i get the "cloud interference" on the ground plane if I forget to turn clouds off...) so I'll look at that.

    thanks everyone!

    Andrew

  • evilproducerevilproducer Posts: 9,050
    edited August 2014

    I'm a bit confused. You get cloud interference at ground level? Do you mean the realistic sky cloud layer? Does this happen often?

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  • TurnerTurner Posts: 116
    edited August 2014

    Yeah - sort of.... - if you use a Sky (not a realistic sky) and create a 30 foot scene, the max altitude defaults to something like 8 feet - and the rendering shows bizarre cloud/ground intersection artifacts.

    Obviously this isn't with a realistic sky - I'm not sure if one is necessarily better/faster.

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  • evilproducerevilproducer Posts: 9,050
    edited December 1969

    I got it. I've always just used the realistic sky, as I felt it looked better, but I just clicked the edit button and the editor looks like the realistic sky editor. I'll have to play around with it. My suggestions before were based on the realistic sky interface, although it looks as if you can lower the ground plain and raise the cloud deck. I raised the clouds to 100ft and I didn't get the weird artifacts.

    I do think the realistic sky looks better at first glance but I suppose it could be slower. I've never really compared the two.

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