> Firstly. I don’t see that you can store a matrix per-point attribute.
Is it possible?
Yes, it is possible. It works as an array of 16 (or 9) floats. Just make
a Point Wrangle with some points going in and put "matrix @mat;" in it
to see.
> How would an experienced Houdini person deal with getting/calculating
Pointreferenceframe on a surface?
Polyframe SOP should get you there pretty quickly. It doesn't create a
matrix attribute though as it won't interpolate correctly across
primitives. It just creates normal, tangent, and bi-tangent vectors.
You can use xyzdist() and primuv() to find and interpolate those
vectors. Those functions give you the Houdini equivalent functionality
of locations. You can then calculate the matrix in Vex using
"maketransform(vector zaxis, vector xaxis)"
(http://www.sidefx.com/docs/houdini/vex/functions/maketransform)
Worth mentioning that the Attribute Interpolate SOP can do the same
thing as primuv() if you prefer.
A
On 28/03/2017 10:04, p...@bustykelp.com wrote:
They fixed it quicker than it took me to make a video showing how
annoying it could be!
I have a question regarding attributes.. In ICE. I use
‘pointreferenceframe’ all the time for finding the orientation at a
surface for making deformers.
In Houdini, there are not all these useful attributes that ICE has by
default. I can make a thing that calculates a homemade orientation
a-la PointReferenceFrame, and it works but it takes up a huge amount
of nodes. Also, you can’t just ‘get’ it. It needs loads of inputs on
the tree that’s finding it.
Firstly. I don’t see that you can store a matrix per-point attribute.
Is it possible?
How would an experienced Houdini person deal with getting/calculating
Pointreferenceframe on a surface?
*From:* Jordi Bares <mailto:jordiba...@gmail.com>
*Sent:* Tuesday, March 28, 2017 9:44 AM
*To:* Official Softimage Users Mailing
List.https://groups.google.com/forum/#!forum/xsi_list
<mailto:softimage@listproc.autodesk.com>
*Subject:* Re: Random Thoughts about H.
I can tell you, that is not unusual.
jb
On 28 Mar 2017, at 08:31, Andy Goehler <lists.andy.goeh...@gmail.com
<mailto:lists.andy.goeh...@gmail.com>> wrote:
Good morning,
this is the awesome support at SideFX
Available in the daily builds.
yesterday
Houdini 16.0.561 Added a hotkey to temporary toggle the state of
the "Allow Dropping Nodes on Wires" preference while in the middle of
dragging a node.
On Mon, 27 Mar 2017 at 12:22, Andy Nicholas <a...@andynicholas.com
<mailto:a...@andynicholas.com>> wrote:
No problem Jonathan.
A quick update to this following discussions with SideFX:
1) I don't recall if this was mentioned in the thread earlier,
but they mentioned that you can enable/disable the auto-connect
on wires using CTRL+8 or in the Network View menu under Tools->
Allow Dropping Nodes on Wires. This doesn't work during a drag
operation though, so I've gone back and explained the desired
workflow of having a modifier key to toggle the behaviour during
the dragging of nodes. I just thought I'd post this in here now
case it's useful to anyone in the mean time.
2) They pointed out that I was incorrect when I said earlier in
this thread there wasn't an equivalent view of Softimage's
Explorer view where you can see clean hierarchies of objects. You
can do it in the Tree View. You just need to enable the Object
Filter (the first button in the Tree View's tool bar). You can
also right click on the Tree View toolbar, and there are various
other options in there which can be helpful for sorting and
grouping the objects in a tree structure. Definitely worth
playing with anyway. Sorry for the misinformation before!
Cheers,
A
On 26/03/2017 13:55, Jonathan Moore wrote:
Thanks Andy.
*From:*softimage-boun...@listproc.autodesk.com
<mailto:softimage-boun...@listproc.autodesk.com>
[mailto:softimage-boun...@listproc.autodesk.com] *On Behalf Of
*Andy Nicholas
*Sent:* 26 March 2017 00:37
*To:* Official Softimage Users Mailing List.
https://groups.google.com/forum/#!forum/xsi_list
<https://groups.google.com/forum/#%21forum/xsi_list>
mailto:softimage@listproc.autodesk.com
*Subject:* Re: Random Thoughts about H.
I also like Pauls idea of a modifier key to disable the auto
connection on demand. Definitely seems a worthwhile
enhancement request.
FYI, I’ve submitted an RFE to Side Effects and sent them the
link to this thread.
A
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