[Sidefx-houdini-list] export 2d track to 3d

brian goodwin brian.r.goodwin at gmail.com
Mon Mar 17 11:17:11 EDT 2008


There many solutions to this,
but to get a better idea of what u are trying to achieve,

are you trying to use the 2D track in 3 Dimentions or just have a flat plane
with locators that move on that flat place?



On Mon, Mar 17, 2008 at 3:09 PM, jose fernandez <
jose.fernandez at framestore-cfc.com> wrote:

> Hi I'm trying to export a 2d track into 3d space. I've brought in the
> data through chops and fitted it to uv space (0-1) through a range node
> (1-2048 in x, 1-1556 in y).
> My first try was to use a grid at a certain point to project uv
> cordinates from camera... and transferring attributes between chops and
> the grid with point sops and finally a transfer attribute that copies
> color with the 3d information in it to the tracking point. In short this
> technique worked, but the metaball sampling doesn't seem to be accurate
> enough and while the point is at the expected position I get random
> jumps every few frames as it moves. I've tried playing with the kernel
> values but nothing makes it better.
> Could any ones suggest a more intelligent (and accurate) approach?
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-- 
brian



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