Alain <aze### [at] qwertyorg> wrote:
> I'd use a much smaller roughness value.

Anything much smaller than what I have results in the diamond being nearly
invisible (maybe a result of the environment that i am mis-using?) (see
stone3.bmp).

> Proposed change:
> reflection{0.1 1 fresnel}
My final product is using reflection{0.5 1 fresnel}. I think 0.1 is slightly
brighter overall.

> Fade_colour White is mostly a do nothing.
If I leave this out I get a black diamond (most probably a result of the
environment that I am mis-using).

> Is your light, diamond and camera inside the sphere?
Can't remember what settings I had now (I think the camera and light were on the
edge of the sphere with the diamond inside it). However, I am now getting
perfectly fine results without any sphere there at all.

> If your sphere is white, or any uniform colour, it don't do it's work as
> an environment.
> Use some mostly dark texture with some small bright areas.
> You can use an image_map with map_type 1 on your sphere with some
> interesting image. If you use version 3.7, you can use some high dynamic
> range image to good effect.
I have been trying t stay away from a patterned environment (mainly for personal
reasons), I picked white because it wasn't black or some other completely
horrible colour that I didnt want to use.

Regards
Bidski

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