[Sidefx-houdini-list] Offset channel expression

Larry Giunta larry at gcreativestudios.com
Wed Jan 23 13:35:08 EST 2008

Hey Peter,

I'm trying to offset a bunch of referenced channels

So, for example, in the TX of a translate sop named "xform2", I'd put

So I'd like to append something to that reference to offset it by x  
number of frames.

Similar to if I wanted to shift the whole curve up in value by 4, I  
ch("/obj/null1/xform1/tx") + 4

But I want to shift the curve in time here.

I hope that makes sense. But it probably is something very simple I'm  


On Jan 23, 2008, at 12:56 PM, Peter Robbinson wrote:

> Hi,
> Don't you just add or subtract your offset from $F?
> $F+n
> PeterR
> Larry Giunta wrote:
>> Is there a way I can shift or offset ( by  x number of frames ) a
>> referenced channel in SOPs with some type of expression.
>> I know I can do this with Chops. ( fetch, shift, export )
>> However, I'm looking for a quicker way so I can simply copy and paste
>> an expression
>> to various SOP and then retype one offset/shift value.
>> Chops would be perfect, but due to the complexity of the SOP
>> network ....... and for
>> better speed while still experimenting ( adding and deleting SOPs
>> often ),
>> I'm hoping to avoid the step of importing and exporting channels to
>> Chops if possible.
>> Thanks is advance for any help.
>> Larry
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