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Sometimes it can be helpful (or at least somewhat entertaining) just to
sit down with a simple object and a ruler and try making the shape. For
example, grab a soda can. It's a cylinder, right? You can easily
measure the dimensions of the cylinder and render it.
But then you look at it again. Well, actually, it's a lot more than
just a cylinder. There's a sort of stretched-up torus around the top,
and that odd-shaped indentation under the pull tab--whoa, there's a pull
tab! And so on. You just do one piece at a time--make that piece look
right, and then move on to another piece.
When you're just working on the shape, it can be useful to use a shiny
plastic texture (like the shiny red plastic in the Help file tutorials).
That will give you a good idea of the shape without any textural
distractions. Once you've got something that looks sort of right,
though, you'll want to make a textured version (which is where Warp's
tutorial about improving scenes becomes really useful; it's got some
nice examples of textures and lighting that could help transform that
red plastic soda can into something realistic).
A few years back, I sat down with a stand magnifier (you know, the
Double-Barreled Roach Clip With Solar Lighter) and started measuring and
coding. About 1500 lines later, I actually had something I liked enough
to put in an IRTC entry. It didn't win or anything, but I was pretty
happy with it. ;)
Well, anyway, hope that helps a little. I've had the flu for about a
week and am feeling a little brain-damaged, so hope this isn't too
incoherent. ;)
--Sherry Shaw
--
#macro T(E,N)sphere{x,.4rotate z*E*60translate y*N pigment{wrinkles scale
.3}finish{ambient 1}}#end#local I=0;#while(I<5)T(I,1)T(1-I,-1)#local I=I+
1;#end camera{location-5*z}plane{z,37 pigment{granite color_map{[.7rgb 0]
[1rgb 1]}}finish{ambient 2}}// TenMoons
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