Add point to surface

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Hi,

I have a simple question. How do I add a point onto a surface? I know I can flatten the mesh based on the uvs and add the points in 2 dimensions then transfer them back up to the 3d space but… I don't want to I'd like to create a set of points on a surface like the scatter sop but in a non-random fashion.

any help is appreciated,

John
john @ goodbyekansas
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Hi,

You can use a Ray SOP. Make sure you have normals on the points aiming towards the surface.

Alternatively, you can use a Creep SOP if the surface is nurbs or mesh.

Cheers!
steven
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Thanks for the reply

You can use a Ray SOP. Make sure you have normals on the points aiming towards the surface.

as far as i know with a ray sop, you ray points from an existing mesh or pcloud to a surface. It's not quite what I need to do.

Alternatively, you can use a Creep SOP if the surface is nurbs or mesh.

In 90% of cases it;s going to be an imported obj so I don't think this would work but I might try to convert the geometry.

I'm pretty sure there will be a way to get a position on a surface (maybe via vop sop?) and then add a point to that position. I just son't know how to get that position info yet

Thanks

john
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Hi John!

In these case I often just ray one point placed on a virtual sphere to the geometry.
Basically you add one point, make sure its outside the bounding sphere of yout object, add a normal pointing to the origin and fire the ray.
Rotate this point around the origin to place the point at the desired position.

Georg
this is not a science fair.
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Awsome Georg, thanks!

I was getting there slowly though I think I'll have to take a look at lsystems to get the final result I'm after.. now back to shading *yawn*

John
john @ goodbyekansas
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