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PlantStudio Kurtz-Fernhout Software
Developers of custom software and educational simulations.
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PlantStudio
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Reversing Z values in a 3D object

If you make a 3D object, then place it on your plant and realize that it is upside-down or inside-out, it means that you were pushing or pulling in the wrong direction when you dragged points in the Z dimension. Just return to the 3D object editor and reverse the Z values. The effect is something like this:

gif/plantstudio00000106.gif
gif/plantstudio00000107.gif
Before
After
To reverse the Z values in a 3D object in the 3D object editor,
gif/plantstudio00090000.gif
Click Reverse. You may not be able to see the effect if you don't have a rotated view of the 3D object showing; click Rotate mode gif/plantstudio00000108.gif and rotate the 3D object in one of the two View panels. Try reversing the triangles a few times and you'll understand how it works.

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Updated: March 10, 1999. Questions/comments on site to webmaster@kurtz-fernhout.com.
Copyright © 1998, 1999 Paul D. Fernhout & Cynthia F. Kurtz.