What would be the best way to start drawing a bottle.

Draw half of crossection, and revolve it.

I to ti je to :-))

I'd model it as a solid (a revolved closed-polyline profile, as Blank suggested) in AutoCAD (this is an AutoCAD forum after all) and then render it in either AutoCAD (simpler) or 3DS (more control, better results).

thanks. for the reply small problem. its square at the bottom. so i cant revole it. ...

whats the best way to add the color inside wiht glass outside?

to add what looks like fluid inside is it just done with another solid inside with another color?

and the ouside tansparent. (glass?)

In that case you will have to play with LOFT or RULESURF. Draw base rectang and top, whatever the shape is... Try them and you'll see what to do, or ask away.

What? Your talking about the content of the botle?

I model in AutoCAD, but render in Artlantis, so can't help you much there. But, color should not matter, if i remember correctly you assign material by layer or object.

And yes, that is how i would do it.

I agree with Blank. If it's a square-based bottle with a cylindrical neck then you have to loft the area from the shoulder to the neck. In AutoCAD, you can do this by drawing the section on plan at the base of the shoulder, drawing the section at the base of the neck and then lofting between the two. At the prompt, select 'Cross sections only' and then select 'Normal to: All Cross Sections'.