GeoShell vertex

adan8

Hi, a small question.

About Geometry Shell. So, when I modify "Offset" and put it to 1cm, Geometry Shell vertices moves at 1cm distance.

A vertex of Geometry Shell has a: X's Offset, Y's Offset, Z's Offset. But which is the formula? 

adan8

Ok, I got it. Must be the same angle. So:

X, Y  Vertex coords of base figure and  X1, Y1 same Vertex but belongs to Geometry Shell.

tg( angle ) =( X/Y ) = ( X1/Y1 ). So X1 =  Y1*( X/Y );

X1² + Y1² = Offset². 

Result Y1= Offset*Y / sqrt( X² + Y² ), X1= Offset*X / sqrt( X² + Y² )

 

Richard Haseltine

The push modifier, I believe, moves the given distance along the vertex normal vector.

adan8

Richard Haseltine said:

The push modifier, I believe, moves the given distance along the vertex normal vector.

Thank you.

If not bother too much, vertex normal vector is: A vector perpendicular to what? This vector has an angle of 90° with all 4 edges which join in the vertex? What is the origin of Vertex Normal Vector? and (x,y,z) of this Vector

adan8

I find something. 

http://docs.daz3d.com/doku.php/public/software/dazstudio/4/referenceguide/scripting/api_reference/samples/geometry/geometry_info/start

This "Normal Indices" give me The vertex normal vector?

Richard Haseltine

No, the indices are the position of each vertex in the list of vertices that makes up the model. I don't know for sure what the  procedure uses, but if it is a vertex normal see https://en.wikipedia.org/wiki/Vertex_normal

adan8

Thanks