[Sidefx-houdini-list] Copy SOP

Marc Horsfield march at imageworks.com
Thu Mar 6 16:23:52 EST 2008


The tangent SOP is what you're looking for :
http://www.sidefx.com/index.php?option=com_wrapper&Itemid=143


Andrew D Lyons wrote:
> (to all) Did the "flow normals" tool from Odforce ever make it onto
> the exchange? Maybe SESI should release one of those? Every facillity
> I've worked at has written it's own. It must be up there with the most
> commonly used tool that doesn't come with Houdini...
>
> To attempt to answer your question - You may be able to get some of
> the way with normal and up vectors and scaling your boxes using the
> "scale" attribute (point sop - particles tab) on your curve.
>
> To get more control you'll need to write a "flow normals" SOP. It
> basically just pulls a vector along the curve using an adjacent
> point's position($PT+/-1 - and assuming ptnum is sequentially sorted
> along curve). Smart ones test to see if it's the first or last point
> in the curve - depending on which way you're flowing. Smarter ones
> still loop over all multiple disconnected curves so curve end points
> aren't connected to other curves. (foreach sop)
>
> Flow normals RFE?
>
> Cheers
>
>
>
> On 06/03/2008, Chandra Maharzan <chandra at digital.com.np> wrote:
>   
>> Hi Again,
>>
>>  I am very new to Houdini and I wanted to try out something.
>>
>>  I have a curve and a thin box. I used COPY SOP to copy that box on to the
>>  curve at the points. Now I want to overlap the boxes (which SOP?) and align
>>  the boxes in the normal of the curves so it flows well along the curve.
>>
>>  Is this achievable?
>>
>>  Thanks,
>>  Chandra
>>
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>>     
>
>
>   

-- 

Marc Horsfield
Sony Pictures Imageworks




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