Selection Sets:¶
Getting Named Selection Sets is a fairly straightforward procedure for Object Selection Sets, but it’s a bit more “difficult” to find how to do it for object mode ones (Vert/Edge/Faces etc), so to save the hassle
Getting SelSets From object modes (verts/edges/poly/etc)
This is the “same” just change whatever mode you’re looking for
- Get Selection Set names from Faces Sets:
import pymxs rt = pymxs.runtime thing = rt.getCurrentSelection()[0] print(thing.Faces.selSetNames) #("TestSet", "TestSet2") # example output
Obviously then you can select a set by doing something like:
Get All Materials¶
Does a check to see if you have multi material on your model, if it does, iterates and tries to do a face select to check if the material is actually on the model and returns a list of material ID’s and what faces have it.
def get_all_mats(model):
materials = []
dupe = rt.copy(model)
rt.resetXForm(dupe)
rt.collapseStack(dupe)
material = dupe.material
if rt.classOf(material) == rt.Multimaterial:
for matID in xrange(material.numsubs):
#see if we can select any faces for each material
dupe.selectByMaterial(matID+1)
faces = dupe.GetSelection(rt.name("Face"))
numSelected = faces.numberset
if numSelected > 0:
materials.append({material[matID]: numSelected})
elif rt.classOf(material) == rt.StandardMaterial:
# if we only have one material we assume that it is on every face
materials.append({material.name: dupe.mesh.numFaces})
rt.delete(dupe)
return materials
EZ Multi Import¶
Very small multi file importer script. Drives me nuts having to import multiple fbx’s etc.
from PySide2 import QtWidgets
import pymxs
rt = pymxs.runtime
def main():
dialog = QtWidgets.QFileDialog()
files = dialog.getOpenFileNames(None, "Multi Importer", "", "FBX (*.fbx);; OBJ (*.obj);; All Files (*.*)")
for f in files[0]:
rt.importFile(f, rt.name("noPrompt"))
if __name__ == "__main__":
main()
Get all Children + define specific type of child to get¶
Provide a node as a parent to search down from and optionally give a node type in Max to search for such as Lights, Geometry, FFD’s etc. Get back a list of the children
def get_all_children(parent, node_type=None):
"""Handy function to get all the children of a given node
Args:
parent (3dsmax Node1): node to get all children of
node_type (None, runtime.class): give class to check for
e.g. rt.FFDBox/rt.GeometryClass etc.
Returns:
list: list of all children of the parent node
"""
def list_children(node):
children = []
for c in node.Children:
children.append(c)
children = children + list_children(c)
return children
child_list = list_children(parent)
return ([x for x in child_list if rt.superClassOf(x) == node_type]
if node_type else child_list)
Is Ancestor¶
Check back up the tree from a node to see if a given named node is an ancestor
def is_ancestor(node, name):
"""Given the node, is there an ancestor named "name"
Args:
node (max Node): node to check for an ancestor on
name (string): name of the ancestor to check for
Returns:
bool: True if the node is an ancestor
"""
found = False
top = False
curr_ancestor = node.parent
if curr_ancestor.name == name:
return True
while curr_ancestor.parent is not None:
curr_ancestor = curr_ancestor.parent
if curr_ancestor.name == name:
return True
return False