Hi
I have a terrain, im trying to scatter Rocks & Trees on it,
for the rocks I use the Unity Instance attribute, and it works nicely.
for the trees I use the tree prototype attributes (unity_hf_tree_prototype + index, unity_hf_treeinstance_prototypeindex) and I get the trees scattered on the terrain.

the problem is when I try to use them together, the rocks is no longer scattering on the terrain.
I think it might be because at some stage of the Houdini network I merge the rocks points with the terrain so the points are getting the "unity_hf_treeinstance_prototypeindex" attribute and its set to the default value of 0.

is there a way I can export 2 outputs from the HDA? one for the terrain and tree points & one for the rocks?

I tried creating another HDA to take in the terrain & regenerate the rocks points, but I cant do that because by the time the terrain is reaching the output, i need to clear layers like roads etc so they wont register as texture layers.

any suggestion about how to solve this issue?

thanks so much man!!

thanks!

would love to know what's wrong with this line though,

fit01(@ptnum, 0, npoints("../line1")) * 0.15

so i can learn for next time

Hi, im new to Houdini and still learning the basics,
im trying to apply a noise to points of a line, the thing is that i want to apply them "softly" as in, the further the point is from the base the stronger the noise will be.

im trying to use the "attribute noise" node and in the amplitude im writing:
fit01(@ptnum, 0, npoints("../line1")) * 0.15

but nothing is happening, the amplitude stays at 0 for all points

i've also tried
@ptnum / npoints("../line1") * 0.15
but it didnt work as well

can any one help and tell me what am i doing wrong? and how to fix this

Hi, I'm migrating from “3d Max” to “Houdini”.

I have created this asset(image), where the chairs are copied using the copy node, and bunch of manipulations to a curve's points.
I want the chairs to be able to dynamically rotate around their shaft.

I have managed to do this for a single chair, using the “RBD Hinge”.
but I can't seem to figure out how to do this for the copies of the chair.
I want each chair to be able to rotate separately from the others (if I throw a sphere at them for example).

In the documentation reference I have found this node(DOP) called “copy data” but I'm not sure this is what I need, and if so, how to use it.

*.hipnc file is attached.

Any suggestions?
Thanks
Noam

thanks!
works like a charm