> I've just done this castle towers.
> I know they should look more old (i'll add some functions on isosurface). And
> then I'll make some wooden parts and a cannon on the walls.
>
> Stones are isosurfaces placed in a circles with a little random displacement.
>
> Render time was 1H 47M, with no radiosity.
>
> Any comments?
>

My first impression is that it's way to broad and that the stones are 
huge. The wall looks like it's only about 3 to 4m high, and the towers 
are toping at around 5m, maybe 6m, for an aquivalent diameter.
Anyway, with such huge blocks, mortar is probably not needed.

In real life, towers that are that broad compared to ther hight are 
usualy used as platforms for heavy trebuchets. But then, the crenation 
is proportionaly much smaller, about 5 to 10 times smaller! Real 
trebuchet towers are often 15m to 30m whide for a similar height.

During devlopment, it can be easier to work with stand-in for your 
blocks, like simple boxes or cheap 12 triangles meshes. Model your 
isosurface blocks in a sepatate test scene. Do the same for your props, 
figures and accesories. Model the walls and towers with simplified 
stones. At the top of your scene file, add some switches and use 
#if()...#else...#end to easily change from simplified objects to quality 
objects. When you are ready for the final render, you just need to 
change the switches.



Alain

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