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On Fri, 12 Dec 1997 21:41:10 GMT, mic### [at] enterprise net (Michael
Kent) wrote:
>1: Scale. Is 1 unit =25m to tight? If so what about 1 unit = 10 m,
>or 1 unit = 1 m.?
For easy manipulation it's easier group the entire block in a union
object anyway. Thus doing a detailed blobk then shrinking it down
should work fine but remember that really tiny objects and really
large ones start to produce errors. Try doing the solar system to
scale and you'll know what I mean.
>2: Detail level. I understand and share the concerns about the amount
>of detail, and how this could affect rendering as the city grows.
Well perhaps this peak memory usage idea should be confirmed. Every
block has a certain amount of memory alloted. But what should it be.
Also perhaps some standard tree objects should be defined as triangle
objects then refered to as meshes. It is my understanding that they
only need to be put into memory once then. Also I think that Mapping
of any kind should be shyied away from or kept to quite small gifs (or
png's whatever's smaller). You can do some pretty clever stuff with 3d
textures. The idea of having a detail level is good but it should
probably be declared as detail = off and detail = on. Then restrict
each block to use a predefined memory usage when on and a smaller
predifined one when off.
Remember that in order to merge the city together well some standards
should probably be met with textures. Perhaps the Ambient values
should be decided beforehand. I know that for bright daytime scenes I
have a fairly high ambient value but for late afternoon scenes I lower
it. A distint time of day should be defined as well as a lighting
setup. After it's finished these can be changed quite easily from
scene to scene.
Just one more question. Who's doing the roads?
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