Sean-R

You need to define your velocity. If you add the following line to your wrangle it will work: v@v = @N; You will also need to reset the Inherit attributes parameter back to "*"

Hi Michal, I put an "*" in the Pin Points parameter to include all the points and set Pin Type to Soft. The pigs now follow the animation and interact with each other. issue_fixed.hipnc

Have you tried fit($FF, 1, 600, 1, 100)

Huh, strang. At least it sorted itself out!

Looks like you're missing the constraint_type attribute. Try this in a primitive wrangle: s@constraint_type = "all";

How are you referencing or isolating your primitive number? If you want to isolate the left shoe using the path, you can use @path=="leftShoe" in the group parameter of a blast node. In an if statement you could do something like this: if(s@path != "leftShoe"){ removepoint(0, @ptnum); } If you really want to go the string array route maybe the strmatch() function will help?

Are you trying to set the third element of windvelocity? If so, give this a try: if(@Time > 2.8){ windvelocity.z = -2; }

Hi Matt, It looks like it's an order of operations thing. If you wrap @P2-@P in brackets it seems to work fine

Try a for-each point or for-each primitive depending on the attribute type, then enable "Piece Attribute"

You don't need to use a foreach. Look into wedging: http://www.sidefx.com/docs/houdini/nodes/out/wedge.html

To put the vertices in an array attribute: i[]@prim_vertices = primvertices(0, @primnum); You have to declare @prim _vertices as an array. You don't need the first line of your code, that would declare a variable. Unless that's what you want of course

The file merge SOP should do the job: http://www.sidefx.com/docs/houdini/nodes/sop/filemerge.html

That should work, @NewVec should be visible in the geometry spreadsheet. To get it to write as a vector attribute you will need to put a v before the @.

The Entagma guys have a nice solution for this:

The code in a wrangle is applied to each prim/point/whatever at the same time. In your code your say that only primitives with a primitive number of 0 and 4 can be white which isn't possible as it can only have one @primnum assigned, try replacing "&&" with "||". You will also need to initialise the @Cd attribute before the if statement, this should work: @Cd = 0; if(@primnum == 0 || @primnum == 4){ @Cd = 1; } If that's all that you are doing in the ForLoop, then I don't think you need it