> Thomas de Groot <tho### [at] degrootorg> wrote:
>> I think I have reached the final version of this image.
>>
>> What do you think?
>>
>> Thomas
>
> Beautiful.  I am such a hack in comparison....
>
> May I ask some technical questions?
>
> The mountains in the distance (love the layers) -- How did you do that?  It
> doesn't look like a simple heightfield; maybe a hightfield on another? (or a
> heightfield turned sideways towards the viewer?)
The author probably used some isosurface. Add to that some clever 
texturing. Add a bit of turbulance to break the regularity of the base 
pattern.

>
> The trees (or vegitation) on the mountain foothills -- they look more 3d than
> textured on it.  Did you loop a trace() and place green objects there?  What
> sort of objects?
Not textures nut actual objects, probably some mesh.
Mesh are very effecient: One mesh can be placed thousands of times and 
only reside in memory once. Add some random rotation, slight uneven 
scalling mean that only 2 or 3 meshes can make a very beleivable forest.

>
> Similar question about the far trees across the misty valley -- how detailed did
> you make them to have them come out looking like that?  (Obviously, you don't
> need to model them to the leaf level at this distance).
Those don't need much detail. Some low triangle count meshes can do the 
trick.
>
> And the close grass -- I've tried to make it with a bunch of triangles.  They
> were all the same color, though.  How do you get all the colors?  You don't
> model them individually, do you?
You can create grass patches as mesh proceduraly. Have a ground with 
varying colouring, apply some pattern to the grass colour, maybe use 
some short grass patches and some longer ones.

>
> Thanks!
>
> Tom A.
>

Alain

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