XSI 4: modeling bottle
written by: Krzysztof M. 'PENdzel' Kundzicz

08-09-2004
info@evermotion.org

This is a simple tutorial about modeling a glass bottle. It is aimed for novice users.






We have to draw the bottle's profile. Thus, from the Model panel we pick Create >> Curve >> Draw Cubic by CVs. And we draw ; )


Our profile looks more less like this. Unfortunatelly, we've drawn it in the TOP view. Let's try to correct that.


We rotate our profile by 90 degrees around the X axis.


We freeze the rotation by clicking Transform and picking Freeze Rotation.


As you can see, the model doesn't remeber it's previous location any more.


It's time to create our bottle. Pick Create >> Revolution Around Axis.


As you can see, after clicking this modifier, there appear lots of options like Subdivisions, open/close, etc.


This picture illustrates how our profile rotates around and axis creating a solid object. Let's try to modify the neck of our bottle slightly.


We pick the profile, remaining in the selection of Object, and then we go to Modify >> Curve >> Add-point Tool by CVs.


We add a few points with the mouse middle button.


By pressing M we can freely move the points of our profile.


We set the neck's profile more less like this. As you can see in the Region Render, the curve is a reference model of our bottle. If we change the curve, the bottle changes accordingly.


In Geometry Approximation >> Surface we modify Refinement Settings. It will make our bottle smoother.


We go to the point selection and we pick all the points from the bottle's bottom.


We pick Modify >> Component >> Proportional.


We go into Modify >> Component >> Proportional Setup. Remember to pick some kind of translation to make the effect visible. Do not translate, just pick traslation. Red points will be modified in hundred percent, the other colors sequentially less, and the blue will remain unchanged. It's reflected in the Fallof profile curve. It can be adjusted to desired proportional modifications.


We have to select a piece of bottle's interior, to press the bottle's bottom. Otherwise, it wouldn't be edited, as we can see on the previous picture. It would cause the middle of the bottle to sick outside.


We've pressed the bottle using Scale.


There's only the nose to be done. We select a few points of the neck. We pick proportional setup and set Distance limit to 2.


Translate.


This is the effect.


We select the profile (the curve rotated around the axis). We hide it by ressing H.


We can't delete it because it is the reference model. We can of course make our bottle independent from the reference, but perhaps we'll need to change the bottle's profile in the future.


Now we create some ground for our bottle. We'll do that in the simplest way. Pick Get >> Primitive >> Curve >> Circle. Translate to desired position.


Having the Circle still selected, pick Create >> Poly. Mesh >> Curves To Mesh.


Our curve changes into a beautiful circular poly. We can immediately add lots of modifications to it. That's it, have a nice day.

Thanks to Aleksander Wilk for the translation.

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