Prim Class
A Prim describes an instance to a single geometry primitive. They are accessible through the SOP.prims member.
Members[edit]
center
→ (Read Only):
Get or set the barycentric coordinate of this primitive. It is expressed as a named 4-tuple (x,y,z,w).
max
→ (Read Only):
The maximum coordinates of this primitive along each dimension, expressed as a named 4-tuple (x,y,z,w).
min
→ (Read Only):
The minimum coordinates of this primitive along each dimension, expressed as a named 4-tuple (x,y,z,w)
normal
→ (Read Only):
The calculated normal vector of this primitive, expressed as a named 4-tuple (x,y,z,w).
owner
→ (Read Only):
The OP to which this object belongs.
size
→ (Read Only):
The size of this primitive along each dimension, expressed as a named 4-tuple (x,y,z,w).
weight
→ (Read Only):
The associated weight of the primitive. Only certain primitives, such as those created by the Metaball SOP can modify this value from its default of 2.0.
index
→ (Read Only):
The primitive index in the list.
Methods[edit]
destroy(destroyPoints=True)
:
:
Destroy and remove the actual primitive this object refers to. This operation is only valid when the primitive belongs to a scriptSOP. Note: after this call, other existing Prim objects in this SOP may no longer be valid.
destroyPoints - (Keyword, Optional) If True, its points are destroyed as well, if false, they are simply detached. The argument is True by default.
eval(u, v)
:
: -> Position
Evaluate the position on the primitive given the u,v coordinates. u,v should be in the range [0,1]. Polygons and curves ignore the v parameter.
center = op('box1').prim[0].eval(0.5, 0.5)
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An Operator Family that reads, creates and modifies 3D polygons, curves, NURBS surfaces, spheres, meatballs and other 3D surface data.