On 27-11-2017 23:11, omniverse wrote:
> I used Thomas' scene to modify (maybe hack is the word) and had much trouble
> with transparency of the media, especially when objects within it are backlit or
> in shadow.
> 
> I finally got a result similar to the photo, but it took some serious trial and
> error to get the colors. And I tried various extinction values, to name one
> example. Just look at all the media color vectors and you will see what I mean.
> 
> I also used radiosity with it too, so I added sphere for ground. I had to widen
> that to meet horizon edge better than simply have a shell of
> cloud/fog/atmosphere, and sky disc of blue-white to try and make those cloud
> colors interact with radiosity. Which was due to the reddened atmosphere,
> otherwise it turned very yellow.
> 
> There was strange stuff about the atmosphere y-axis scale when changing index
> values, but I shouldn't go into all that here. Just be forewarned that using
> other index values might alter the haze layer (orange-yellow portion) in weird
> ways. You will also notice I turned the media into spherical warps, and rotated
> the atmosphere in attempt to get haze layer out of near distance.
> 
> Like I said, it's more a hack rather than modified with certainty of outcome.
> 
> I might be forgetting things, I was changing almost every aspect but luckily
> Thomas got me to the starting point well enough. Scene follows:
> 

I am curious :-)

I shall have a look at what you brewed up. The scene looks nice indeed!


-- 
Thomas

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