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About bonassus

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  1. vdb from camera to polygons

    Ok it works. thanks for the help.
  2. vdb from camera to polygons

    Thanks for that. I at least now have density values in vdb activate. however convertvdb does not produce polygons. see attached image.
  3. I learned that you can create a vdb from the camera using the vdb node, set to "From Camera". This shows you the camera frustrum as a bounding area. I want to turn this vdb into polygons. my failure to do so reveals my lack of vdb knowledge. The vdb From camera tab is set to fog volume. I gave it a name of "density" and used a vdb activate to give a value of 1,1,1. I tried to use a convertvdb node to convert to polygons, this didn't work. i'm misunderstanding something here. help would be appreciated.
  4. printf

    Thanks a lot for your explanation. I think it should be added to the Houdini docs. much appreciated.
  5. printf

    I'm confused about printf. I don't know c++ and so never had to use it before leaning vex. I'm wondering about all letters you can use for the arguments in the printf function. I've seen %f used for a float. %d also used for float (decimal i guess), %s for string, and %i for integer. the docs state: The conversion of the argument is specified by a single letter: g, f, s, d, x, c, p. it goes on to show: %g, %p, %c Print an integer float, vector, vector4, matrix3, matrix or string in "general" form. %f, %e, %E Print a float, vector, vector4, matrix3 or matrix in floating point form. The first example shows 3 argument types and 7 data types. Does this mean i can use any of the listed %letter arguments with any of the data types shown?
  6. add spring to a lookat constraint

    That works. Thanks!
  7. I'm trying to at a bit of rotation spring to a look at constraint. It's not working. I created a lookat constraint and then within the constraint network after the lookat chop I add three deletes with t*, r* and s* and then merged the channels back together. I added a spring chop to the r* channels before merge. (see attached image) There is no spring added to any channel. I'm wondering how this could be done.
  8. Thanks for this topic and solution. This helped me build a camera rig.
  9. in a blast node I can set the group with @name=vel as well as @name==vel . It makes sense to me the equality operator == should work here as it returns a boolean. Why does this work with an assignment operator = ?
  10. I'm trying to create groups with a wrangle from @class attrib after a connectivity sop, using "iteration" attrib in a foreach loop. f@group_`"detail("../foreach_begin1_metadata1/", "iteration", 0)"` = @class; I was thinking the backticks and quotes should resolve to the iteration number as a string. then concatenate it to the f@group_ and that equal to class number. However i think the iteration and class atribs are integer values and the f@group has to be a float? confused...
  11. Houdini 17 Wishlist

    A better illustrator importer would be nice. Specifically one that can imports open curves. The way C4D does. This would be an advantage to those considering Houdini for motion graphics.
  12. increment every 20th frame in a sort

    Oh right. Thank you.
  13. I have a sort node set to shift. I want to increment offset by 1 every 20th frame. $F%20==0 sets the offset from 0 to 1 every 20th frame. But how can I increment the value instead of setting to 0 or 1? Thanks.
  14. magnet point snap align

    Awesome, Thank you. I didn't know about part where you hover over the second point. Thanks for taking the time to demonstrate this.