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    Antoine L
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  1. So I have one digital asset, which has one parameter (a string), and contains a DOP. The idea would be to replicate this asset on a grid, and vary the string parameter. However, I don't understand how to access that parameter, as it exists at Scene level. When I import the DA at geo level with Object Merge, I don't have the interface for that asset, so I can't set that text value. Can I somehow create a parameter on the Object Merge at geo level that would be linked to the parameter of the digital asset at scene level ?
  2. How much RAM is too much ?

    Thanks for the answers. I will take this into consideration for my next upgrade.
  3. local minimum in 3d

    absolutely, I actually encountered that in magnetostatics a few years back; now I'll have to see if I can implement that on a discrete mesh.. It should be interesting
  4. How much RAM is too much ?

    Under Linux, is there an upper limit to the amount of RAM Houdini can handle right now ? I have 64 GB right now, but I'm considering an upgrade. I assume I will hit another bottleneck before RAM starts to really be a problem. Can you give me a real life example for an indie user where I would benefit from having more than 64 GB of RAM ? By real life example, I mean ... if I can go to a random frame with no delay of a large sim, but each frames now requires 4 hours to render.. I now have another problem to solve
  5. local minimum in 3d

    This is not really a Houdini question, but does the notion of local minimum exist in 3d, without assumption on the geometry ? Except that it is not degenerate, no self intersection; basically a closed well formed surface. For example, to find protrusions and recesses on a mesh I was thinking of something like looking at where the neighboring points of each point at located with respect to the local normal plane, within a certain distance.
  6. You know.. s for string, f for float, inside wrangles.. I can't find a good query for this. I know it's there somewhere but I can't find it
  7. I'm trying to get the attribute value in the float field of an operator (say, transform).
  8. No it does not. The context is a Block Begin / Block End loop, the one in Utility / For-Each primitive
  9. What is the syntax to read an attribute on the current prim from inside a for-each-primitive loop ? I'm not sure what the foor loop context allows me to do in terms of closure and stuffs.. Just to be clear, I'm talking about this kind of loop: http://www.sidefx.com/docs/houdini16.5/model/looping.html Block begin / Block end
  10. Here is a way to do it. The magic happens in AttributeTransfer. It transfers an attribute called edge which is actually set on the points of the resampled cube, to the closest points it finds. deletePointsOnEdges.hipnc
  11. How do I space + mouse drag on the viewport so that it modifies the current camera ?
  12. list of vertices

    Do you want to iterate over the vertices in the same node, or for some reason store them in an attribute ? http://www.sidefx.com/docs/houdini/vex/geometry.html http://www.sidefx.com/docs/houdini/vex/functions/vertex.html <type> vertex(<geometry>geometry, string attribute_name, int prim_num, int vertex_num) <type>[] vertex(<geometry>geometry, string attribute_name, int prim_num, int vertex_num) Specifies the vertex as a primitive number and then an offset into the list of vertices on that primitive.
  13. Is there a way to prefix the name of the attribute to the value of the attribute ? I mean, without doing it manually with a wrangle
  14. Is there a way to replicate the down triangle that exists for Vexpression fields, for color ramps, which allows to directly set a value from a predefined set ? Or can we build as users, an inherited type that has such property ?
  15. Is there a direct way to measure a distance between two points, either the actual distance or the projected distance, on the current viewing pane ?