Stephen napsal(a):
> I've just noticed that if I scale a sphere by 10000 it becomes an
> infinite object. Are there any implications to this?
-since double precision is only 16 digits you cannot have objects with 
scales differing by more than 8 digits.
-if the camera is inside the sphere you must make it hollow or inverse.
-such object will probably be traced by every ray. This has performance 
implications of using complicated objects (an unlikely need)

this method is often used to create a background because a sky_sphere 
doesn't cooperate with radiosity very well.
-- 
the ultimate time-killer:
+a0.0 +am2 +r9

Johnny D

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