topic Re: I want to maintain state, have loops, how are these done in MCG? in 3ds Max Forum

topic Re: I want to maintain state, have loops, how are these done in MCG? in 3ds Max Forum https://forums.autodesk.com/t5/3ds-max-forum/i-want-to-maintain-state-have-loops-how-are-these-done-in-mcg/m-p/5765312#M87482 one thing at a time then. DeltaPosSquared =   x > y  = x^2 > y ^2    since this holds true, we can compare squared distances, instead of going through the whole square root process. It's a math shortcut. Since a dot product of (start - end) gives me the 'squared length', I can use that for a distance check, as long as I compared the squared distance.  So you really need to know algerbra, but some linear geometry, and trigonometry,  otherwise lots of this stuff won't make any sense. You seem to know about offseting objects (like your blinds), so instead of  myZ = myIndex * 5meters, a simulation is iterative.instead of a single equation to get to a final position, it must iterate.  myZ = myZ + deltaZ.  This means the 'old' value is rolled into the new position with a delta applied to it. In my case, it's the force of gravity. Before I blindly move the virtual particle however, I check for a collision against the 'ground'. and if found, it bounces. A bounce is a loss of energy and usually a reflection across the surface normal.       Tue, 11 Aug 2015 05:32:48 GMT Anonymous 2015-08-11T05:32:48Z