Copies the value of a geometry attribute into a variable.
Overview
int getattribute(string geometry, type &value, string attribute_type, string attribute_name, int number, int vertex_number)int getattribute(string path, float value[], string style, string attribute, int prim_number, int vertex_number)
Returns 0 if importing the attribute failed, 1 on success.
geometry
| The name of the geometry file to reference. Inside Houdini, this may be “op:full_path_to_sop” to reference a SOP. | ||||||||||
value
| The attribute value (may be uninitialized on function failure) | ||||||||||
attribute_type
|
| ||||||||||
attribute_name
| The name of the attribute (i.e. “Cd” or “P”) | ||||||||||
number
| The point or primitive number. For detail attributes, this
can be left as | ||||||||||
vertex_number
| For vertex attributes, the primitive should be specified as the number parameter and the vertex_number specifies which vertex of the primitive should be referenced. For point, primitive and detail attributes, the vertex_number is ignored. |
Examples
vector pos, uv, clr; // Get the position of point 3 in "defgeo.bgeo" getattribute("defgeo.bgeo", pos, "point", "P", 3, 0); // Get the value of the "uv" attribute for vertex 2 of primitive // number 3 in the file defgeo.bgeo getattribute("defgeo.bgeo", uv, "vertex", "uv", 3, 2); // Get the value of the "Cd" attribute for primitive 7 // in the SOP specified by the path "/obj/geo1/color1" (Houdini // only) getattribute("op:/obj/geo1/color1", clr, "primitive", "Cd", 7);