Le_Forgeron <lef### [at] freefr> wrote:
> Le 03/08/2015 05:27, Anthony D. Baye a écrit :
> > I need a water material that looks good under multiple light sources but doesn't
> > bog down when I render it with radiosity.
> >
> > The water in my scene is taking forever to render, and I've disabled everything
> > but the normal pattern.
> >
> > Part of the problem might be a low aa threshold combined with a small focal
> > blur, but the rest of the scene renders acceptably quickly.
> >
> > I'd appreciate any help.
> >
> > Regards,
> > A.D.B.
> >
> >
> A bit more context please: is it water for indoor (such as inside tube,
> glass, bottle) or outdoor (and kind of latitude: the sea of polynesia is
> far different from the waves of scotland, same water, yet not the same
> final colour).
>
Right.  Because of the salts dissolved in the water.
That said: It's nothing special.

pigment { rgbft <1.000, 1.000, 1.000, 1.000, 0.618> }
finish {
    diffuse 0.3
    specular 0.8
    reflection { 0.3, 1 falloff 5 }
    conserve_energy
    }
normal {
    function {
        f_ridged_mf(x,y,z, 0.1, 3.0, 7.0, 0.7, 0.7, 2)
        } 0.3
    scale <4.68, 3.2, 4.68>/12
    }
interior {
    ior 1.33
    fade_distance 3
    fade_power 2
    fade_color rgb <0.235, 0.318, 0.618>
    dispersion 1.016
    dispersion_samples 10
    }

it's intended to be indoors, but may be lighted with external (natural) light
sources.  At the moment, I have six light sources surrounding it.

I used a normal as a substitute for actual geometry (Originally, I was using an
isosurface)

my trace level is default.

I tried commenting out the interior and the finish, to no avail, so either it's
the normal, or a combination of other things.

@Nekar
>
> Have you tried adding no_radiosity to the water?
>
> --
> -Nekar Xenos-

it doesn't matter.  The water takes forever to render even with radiosity turned
off.

Regards,
A.D.B.

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