Hello, [pix_mask] might be what you are looking for,<br>  <br>  You can find a gem exemples in gem/exemples/04.pix/13.maskDancer.pd<br>  <br>  Patco.<br><br><b><i>yukio &lt;yukio_mishima@fastmail.fm&gt;</i></b> a écrit&nbsp;:<blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;">  hi , in some tradicional 3d software like 3d studio max and cinema4d<br>theres a fuction called boolean that enable for example  substract areas<br>from a 3d object using another ..... for example if you have 2 spheres ,<br>you can use one to substract an area of the second one, you can also add<br>2 3d object or visualize just the intersection of both objects..... <br>my question is .. is it possible to make something like this in Gem with<br>geos?<br>for example substracting an  area of a geo with a second one?<br><br>many thanx <br><br>yuk<br>-- <br>  yukio<br>  yukio_mishima@fastmail.fm<br><br>-- <br>http://www.fastmail.fm - A no
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