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Search the Community: Showing results for tags 'selection'.

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Found 10 results

  1. Hi, i wanted to use the Facet SOP on a certain selection of points. The node network looks like this: The group parameters are as follows and select four points. The Facet SOP parameter are as follows: Every option I select in the Facet SOP (e.g. Make Planar) effects all points and not only the selected points. Has anyone an idea why ? Thanks in advance
  2. So I'm making a HDA wich has a color sop inside of it, of wich Im using the group field, thats why I need to acces this field at the upper level (the HDA interface). So to to do this, when building the HDA interface I dragged that field directly from the color sop to the HDA interface, (pic1/3)but when I try to use it from the HDA it throws this error (pic2), wich I guess is referencing this code inside the group's script (pic4). I've never messed around with this kind of stuff, how can I solve this?
  3. Hey, I am trying to do some stuff in python with viewport selections. I want to query whether or not the user has anything selected, not necessarily get what is already selected. As far as I can tell the only way to do anything with the viewport is through toolutils. If I use "toolutils.sceneViewer().selectGeometry()" and nothing is selected, it waits until the user hits enter over the viewport before continuing. Is there any way to simply return whether or not any geometry has been selected without having to wait for the user to hit enter? import toolutils sv = toolutils.sceneViewer() geo = sv.selectGeometry() if geo: print "There is a selection" else: print "No geo selected" Thanks! James C
  4. Hi, a concrete slab ( box with size 3, 0.2, 1.5) after a voronoi fracture, I'm with prim groups: piece0 piece1 piece2 ... I'd like to select a few of them (pieces at the border of the slab) I know how to do it manually in the viewport / component groups / enable group selection or press 9 but how can I use this in a procedural way ? Like in a group node, with a bounding box ? It will only group the primitives, is there a way to extend the selection to connected geo ? must be possible..
  5. How do you guys select bones inside geometry? Seems like an impossible task short of using the Netview. Even though I'm in wire framemode, the geometry will still highlight and select. In Softimage there's an Xray display mode (which is different from Houdini's in concept) and bones, nulls, curves are drawn on top of renderable objects (Sub-D or NURBS surfaces) and are given priority over the geometry underneath when selecting. That's apart from being able to simply select through wireframe when in wireframe mode with Xray off. Now, I don't expect Houdini to have XSI's Xray mode, but at least a way of being able to select bones through geo at all.
  6. Hi, I'm trying to do an HDA that will have an input of a geometry, delete geo keep points... then a point blast based on a selection and then output it as obj sequence. well I want it to be an HDA so I need to make the selection in the digital asset upper level. The problem is when I drag the group selection to the parm interface it copies but then I select the little arrow and it says not enough inputs connected... do you have any idea how to connect them and be available to select in the top level? I'll send an example in attach. blast_selection.hda
  7. Hi Everyone! I have a grid, i'd like to select the diagonal points. Im using a group SOP, filter by expression: abs(TX) = abs(TZ); The result is funky (does not select all "TX=-TZ" diagonal but only corner pts) Any workarounds? Thank you very much!!! diagonal_select.hip
  8. Hi, I created a box as a Polygon Mesh in houdini 13. After giving it some axis divisions I want to select only some Verts or Faces. But I really cant select anything what makes sense. When I create a selection frame around the whole object to select all faces,verts or edges it only select some randome faces. Is there a hidden parameter which controls this? I dinĀ“t find a solution for that I compared it with the selection in houdini 14 and there everything is working as I would expect it to work. I would appreciate any help. Thank you. kind regards Jonathan
  9. Hi Everyone, I started learning Houdini a couple of weeks ago, and I love it so far! Basically I am trying to use the vopsop to simulate the behaviour of the "grow selection tool", without any luck unfortunately. So if I select the points nearest to the ground plane in the vopsop, I want to be able to grow this selection (with a slider or something) on the mesh. Not in any particular direction, just following the geometry, as the actual tool would. Any help/advice is much appreciated! Thanks, George
  10. Hello all, I am new to Houdini Fx, as to this forum. While spitting through all tutorials, i keep on running at a problem. Maybe its a small problem for you guys, but I cannot fix this. The problem is, that I cannot box select. For example, as I was doing a tutorial about animating in spring SOP's I had to select the points that weren't attached to the ground and make it a group. So I had it in front view, and dragged a box over the points, but nothing is selected. I tried various key combinations, like dragging with a shift or ctrl. But nothing seems to work. I than selected all by pressing a but I had to unselect the points manually with shift and clicking them one by one. Now the points are on a grid, so it was in the x and in the y direction, so that is a whole lotta work. I tried it with several projects but the box selection is not working. Can someone tell me what is wrong? Is there a different approach or am I just doing it wrong?