Alain wrote:

> I think that the problem in in the lathe you used. Even if you used the 
> hollow option, it's effectively "solid", in that it don't have any open 
> space inside of it.
> Try using a difference of your lathe with itself scaled 
> <0.9,1.01,0.9>(smaller diameter, very slightly taller to remove 
> coincident surfaces). You can also make the lathe come back to make the 
> inside empty.

This has made the globe look much nicer.  Even better, I can switch  to 
a quadratic spline to speed things up.  Unfortunately, it does not solve 
the problem of the lamp projecting light onto the ground, or casting 
it's own shadow.

> Another thing, if all elements of a CSG object share the same texture 
> and finish, it's preferable to assing your texture once to the whole 
> object, not to each of it's elements. It makes smaller, easier to read 
> and maintain code, it also save memory when rendering, possibly gaining 
> some little speed. You can always use some textures for individual 
> elements if you want to have some that have a different texture.

I usually do this, but as you can probably tell from my code I 
guestimagted the shape of the lamp, and haven't had a chance to clean up 
the code yet.

> 
> Alain

Post a reply to this message