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About breadbox

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    bradon
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  1. I have the point attribute alpha of a material clipping a curve using a hair shader. It works great in the beauty channel C, but none of the AOV's are clipping properly. Is there a setting I need to add for the AOV to clip by that Alpha/Opacity value?
  2. Convert Volume into Sliced Curves

    perfecto much thanks
  3. Convert Volume into Sliced Curves

    ok boolean! going brute force, I like it. Only one small problem in some of the slices where there is a positive with a negative area its not creating a hole where it should.
  4. Is there a way to convert a volume into a series of curve slices or sections similar to how the convertMeta "sections" node works for metaballs? I noticed there is a volume slice node, but it only works to create a mesh and not a curve.
  5. VDB Advect SDF

    Ya, great one @loudsubs. Thanks for putting it in the solver too, you read my mind!
  6. Metaball Filter

    When using the particle fluid surface node, it outputs polygons, and they have a really nice filter method to shape the metaball at the conversion to polygon. 1. Is there a way when using a copy sop and metaball (old school way to make a mesh) to apply this same type of filter to the metaball? Is there some kind of just "filter metaball" node? 2. Can the particle fluid surface node , output a filtered metaball field instead of converting to polygons - In other words, can I NOT convert to polygons, but just filter the metaball mesh and then ill convert it to polygons at a later step using the "convert meta" node
  7. Modeling 3D Color Volume

    Can anyone help me figure out how to plug the color volume equation to create these 3D shapes? I am attempting to plug in the RGB conversion equation I found on wikipedia in an attribute wrangle to move and plot the RGB points in 3D space, but i'm not having any luck. I'd like to get something that looks kind of like the attached image. I was also thinking an ISO surface might work too, but I'm not familiar enough to know how to convert that wikipedia equation. my starting hip file is also attached. ColorVolume_Equation_help.hipnc
  8. OK found the issue the variable for some reason was mapping as "parm_gflow" instead of just "gflow". Had to dive into the VOP Net and peck around until I found the variable mapping was changed.
  9. Picking back up on this topic, now that the mountain has been changed in H16 it seems that some variables do not map with point attributes? I am trying to use gflow as a point attr to influence the gradient warp. File attached. PointVariables_Mountain.hipnc
  10. I am trying to use a pitch chop to split a given audio file into a series of channels where the value of the chop channel is the pitch, this would create a kind of square wave frequency pattern that could be used to drive a wave form in SOPs for example, so if the pitch is 440 the value of the chop channel would be 440 and could directly pipe into a SOP channel. It seems like pitch chop is the thing to use but its not quite working how I would want. The attached picture I photo shopped to show how ideally the chop channels would split out. The attached Hip shows my working example and audio test file. PitchDetection_chop.hipnc pureTones.aif
  11. VDB Advect SDF

    To be clear, I'm not trying to advect POINTS... I'm trying to advect a VOLUME, with another volume.
  12. VDB Advect SDF

    I'm trying to understand the VDB Advect SDF SOP better and there is unfortunately no example in the help card. What I am looking to do is advect one volume by another volume. Attached is my working file so far, if anyone can point me in the right direction would appreciate it. AdvectVolumebyVolume.hipnc
  13. Import DOP to SOP no shelf tool

    OK super! now I got it. One other important bit of information is that i needed to set the fields to import option on and make sure it was set to "Geometry" by default the DOP IO has all field imports turned OFF! That's one thing a shelf tool can't teach you! Now it makes sense because technically all the result fields are solved together, density, vel, temperature and also Geometry/points because I nested the the advection node into the multisolver solver node so it all comes through as one object but you have to filter the thing/result you want from all the DOP fields. Thanks for the help.
  14. Import DOP to SOP no shelf tool

    Unfortunately I tired it of course!!! Did you look at the file? The problem with shelf tools you become forever handicap I'm sure its a simple checkbox somewhere on one of the 20 DOP nodes that Im missing! I'm wondering if its the method of advection that I am using that it does not actually create real particle geometry?
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