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Found 4 results

  1. I have 2 sets of points: 'parent' and 'child'. Both have the same number of points. I need each parent point to have a unique child assigned to it - no duplicates. I need to be able to animate in an active value for the parent points, so that they all become active in 3-4 frames. When a parent point becomes 'active', it needs to search for its nearest available animated point and set that animated point's id number as 'child_id'. An animated point is only 'available' if it doesn't already have a parent point, or in other words: if the child_id is currently unused. My issue comes from the VOP I've set up within a SOP solver. If there is more than one parent point becoming active on a single frame, I get multiple parent points assigned with the same child point. I need to be able to write to 'child_id' and read from it on the same frame, to make sure that I am not getting multiple parent points with the same child points (leaving some very lonely, parent-less child points ). Please take a look at my attached file. I've highlighted the important nodes, and the Find Attribute Value VOP in red is where the issue is originating. find_unique_child.hip
  2. Hello, I know that there are plenty of examples of vop loops with point clouds, but after searching, haven't found an example/file that helps with this. I can get an attribute growth going with the basic like pc_filter and all of that, but now was trying to make that attib growth happen one point at a time(the closest ones from the points with the attrib initiated) and i can do that for the first point, but after that it doesn't do what i was expecting it to do, stops the growth after finding the first point... Imagine it should be something super simple that i got wrong, but if someone could take a look and let me know what i'm doing wrong i would really appreciate it. Here's a simple file showing where i'm at now Big thanks M odforce_pc_loop_problem.hip
  3. I posted here (http://forums.odforce.net/topic/20626-flipping-animation/) yesterday but haven't yet received any replies so I will ask a more basic question that should help me solve the problem in my other post. If I have a grid of black points and I colour some of them red, how can I find the nearest red point for the other (black) points. I'm fairly sure it would be: - pcopen - pciterate - if red is > 0.1 But then how would I break out of the pciterate and use that found point, e.g. to get the distance between the found red point and the current black point? Cheers, Mike
  4. A VOP performs a pointcloud lookup and uses while loop in oder to take advandage of the pcimport node to get distance,ptnum ,P etc. How can I store the result of each loop in a while node in vops? Each loop gives me a point but I only get the last point out of the node( although I have set max number of points to a number higher than one.. ) Maybe somehow push/append them into an array so I can call the later on? If that is the way, arrays in vops need inline code (afaik..) and I haven't managed to figure i out... One of my goals is to draw multiple lines that connect the look up point with a number of points on the pointcloud(= max number of points) without puting the VOP and the Foreach node into another ForEach node out side the vop (because it is not fast). I hope all this makes sense ......thanks ps. play a bit with the slider of "max number of points". Slide it from 1 to 4 and you'll see the line jumbing to the next point. I want to be able to store these points without movin the slider.. Push in array.hip