Loading...
> >

Sci-Fi Starship Quarters

davidjones8418davidjones8418 Posts: 167
in New Users

I am using iRay have got a couple of environments that are so dark and I can't seem to light them. The walls just seem to suck the light in like a black hole. I can put a million lumen light in and it doesn't make much difference.

This is the one I am trying at the moment.

https://www.daz3d.com/sci-fi-starship-quarters-volume-2

Are these environment really aimed at 3Delight?

Comments

  • GordigGordig Posts: 10,051

    No, it's definitely Iray, and with an HDRI and so many emissives, it's odd that it would turn out dark for you. Where are your tone mapping settings at?

  • davidjones8418davidjones8418 Posts: 167

    These are the settings I am using.

    Can't preview the attachement so will roll with it and see how it turns out.

     

    tone mapping.jpg
    571 x 821 - 86K
  • davidjones8418davidjones8418 Posts: 167

    I took a couple of very quick (and incomplete and tiny!) renders to show the lighting. These are from the bathroom of the environment.

    The first is with the usual 3 point light set up I start with (Key 150,000 lumens, others less). The second is the same lights dialled up by a factor of 10 (making the key light 1.5 million lumens).

    You can see the brightness in the white clothing. It just doesn't seem to light up the surfaces.

    I am probabky doing something really stupid, but can't work out what it is !

    I had much the same issue with the medi lab. All the other environments I have used light up. These just seem to soak up any light I throw in there.

    https://www.daz3d.com/medi-lab

    phototest1.png
    480 x 480 - 307K
    phototest2.png
    480 x 480 - 351K
  • davidjones8418davidjones8418 Posts: 167

    I spend a while just playing with the surfaces, especially the walls.

    By raising the Top Coat Weight of the walls to 1 (from zero), the Metallic Flakes Weight to 1 (from zero), the Diffuse Overlay Weight to 1 (from zero) and switching base mixing to Weighted (from PBR Metallicity/Roughness), I got to this.. but I don't really know what I am doing. I suspect these should be positive values though, from the effect. Is 1 too high?

    Something to do with the default surface settings, it seems to me.

    phototest3.png
    480 x 480 - 475K
  • SpottedKittySpottedKitty Posts: 7,232
    davidjones8418 said:

    These are the settings I am using.

    Can't preview the attachement so will roll with it and see how it turns out.

    These are the default settings, and they're optimised for a bright cloudy outdoor scene (the default Environment light map). They tend not to work well with even well-lit interior scenes. Try turning the Shutter Speed and/or F/Stop values down and see what happens.

  • davidjones8418davidjones8418 Posts: 167

    Thank you. Will give that a go.

Sign In or Register to comment.