"Thomas de Groot" <t.d### [at] internlDOTnet> wrote in message 
news:486c7fab@news.povray.org...
>
> "Jim Holsenback" <jho### [at] hotmailcom> schreef in bericht 
> news:486b630b@news.povray.org...
>> inspired by a piece on the Valles Caldera National Preserve I saw on the 
>> PBS show "Desert Speaks"
>>
> Nice idea! Perhaps you could emphasize the rather circular shape of the 
> caldera. As it is now, it could be any mountain lake, as it looks 
> elongated.

ah yes ..... no matter how I tried to position the 3 overlapping height 
fields I was unable to get the lake to be as round as I wanted.

> The clouds are an excellent idea, especially to give some measure of size 
> and proportions. However, you could also underscore that with some 
> vegetation perhaps...

I was struggling with the depth and size cues of the caldera itself until 
(by accident) I made a typo on the y axis position of the cloud bank. 
Positioning it just below the height of the adjacent peak sold that idea. As 
for the vegetation I had two types a cacti one a wings object the other an 
iso_surface and scaling was an issue ..... they ended up so small that they 
became moot. I toyed with the idea of having a couple of cacti close to the 
camera but that didn't pan out ..... objects are easy, scenes are a bit more 
of a challenge. I have no artist training whatsoever  so sometimes I 
struggle with the most basic concepts. I didn't "get" the depth cue idea 
until you commented on one of my scenes awhile ago ..... so thanks for the 
feedback

Jim

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