Rafal123 Posted August 12, 2005 Share Posted August 12, 2005 Hi. I don't understand the diffrence beetween these two types of rigid bodies. I see that in DOPs I can create `Ground_Plane` -- so it acts as a poly plane rbd right? Then I can also create simple `grid` SOP and make it rbd too, right? But what's the diffrence between these? Aren't they the same? (Sorry if these questions r stupid. I'm from Maya background ) r|m Quote Link to comment Share on other sites More sharing options...
sibarrick Posted August 12, 2005 Share Posted August 12, 2005 The Ground plane is infinitely big and much more stable and quicker for doing collision detection if a plane is all you need. Whereas the grid is only as big as you make it, then stuff could always drop off the edge. Quote Link to comment Share on other sites More sharing options...
Rafal123 Posted August 12, 2005 Author Share Posted August 12, 2005 Thanks, now I understand. Quote Link to comment Share on other sites More sharing options...
mtucker Posted August 12, 2005 Share Posted August 12, 2005 Just to clarify, there is nothing magical about the Ground Plane. It just has some diferent options set on its Volume DOP, and does some trickery so that the geometry you see isn't the geometry used to define the infinite plane. And then it has an Active Value DOP on it to make it a passive object (so that collisions and forces don't affect it). You could put down an RBD Object DOP and create almost exactly the same thing (the infinite plane, the infinite mass). But given how common it is to want an infinite immovable ground plane, we packaged one up for you. Mark Quote Link to comment Share on other sites More sharing options...
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