point expression function
Returns the value of a point attribute.
Usage
point(surface_node, point_number, attribute, index)
attribute is the name of the attribute (eg. “Cd” for diffuse color). Two special attributes exist “P” and “Pw” which represent the position of the point in space (“Pw” allows you to access the W component of the position).
Note | This function will interpolate between point values if the point number is fractional, such as 3.35 |
Examples
point("/obj/geo1/facet1", 3, "P", 0)Returns the X component of point 3 of the facet1 surface node in geo1.
point("/obj/geo1/facet1", 3, "N", 2)Returns the Z component of the normal attribute of point 3 in the facet1 surface node of object geo1.