[Sidefx-houdini-list] transferring colour to groups question

Dan Wills gdanzo at gmail.com
Wed Jul 27 22:13:46 EDT 2011


Hey Phil,

If you do end up using a forEach (group) - inside you could promote the
parameter to a detail attribute (attribPromote node - take your pick what
combination mode to use) and then back to primitive to make sure all prims
in the chunk get the same value.

dan

On Thu, Jul 28, 2011 at 2:49 AM, Phil Spicer <PSpicer at bournemouth.ac.uk>wrote:

> Hi,
>
> I have a red animated curve driving a crack along a wall, and as the curve
> grows I want its red colour to be transferred onto some crack debris chunks
> I have created, with the idea that when the chunk turns red, it becomes
> under the influence of DOPs and fires out of the wall.
>
> An Attribute Transfer will do the trick (sort of) where the animated curve
> transfers its red information as points or primitives; however I want to
> transfer the colour information to each chunk group (so each chunk visually
> switches 'on' as the animated curve passes through it).
>
> I have been looking at the For Each SOP which does have group iteration
> capability; however internally the colour is still being passed as point or
> primitive as before.
>
> Any thoughts or ideas would be most welcome...
>
> Kind regards,
>
> Phil.
>
>
>
>
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