Polygon-NURBS Converter 1.1.2 (Maya script)
gaareebeePolygon-NURBS Converter 1.1.2
***Currently Available Version. Maya 2013~Maya 2020
***This script will no longer be updated.Be aware of that when you purchase the script.
- How to install
After downloading the script, load the script to Maya's script editor(Script Editor -> File -> Load Script) on Python tab,
and save it to shelf.(Script Editor -> File -> Save Script to Shelf)
FUNCTIONS
- Polygon To NURBS
Useful script for converting polygon mesh to NURBS surface. Select polygon objects you want to convert to NURBS, and press 'PolyToNURBS' button.
'Original object' option is about choosing the state of selected objects after converted(Hide it, or keep it, or remove it.). 'Quadrangle Check' is script for checking whether the faces of selected objects are all quadrangle or not. To convert polygon to NURBS surface correctly, all the faces of selected objects must be quadrangle. This script is included in 'PolyToNURBS' function, so you don't have to run it for executing 'PolyToNURBS'. But just in case you want to check only polygon object's faces, I set it apart from 'PolyToNURBS' function .
if there are some faces not proper for converting,
the warning message will be displayed and these faces will be selected
so if you do 'Isolate Selected', you can see them directly.
The message you see if there are some faces not proper for
converting is one of these.
1. 'Some faces of selected objects are not quadrangle.'
<- This message is printed when some faces are not quadrangle.
2. 'Some edges of selected object are unusually detached.'
< - When modeling, I found a weird situation that whent selecting
some edges and detaching them, sometimes the vertices included in these edges are not splitted even these edges are detached. So, this makes error when executing this function.
So I set this to detect these weird components.
In this case, you have to delete them and make them again.
3. 'Some faces are not quadrangle and some edges are
unusually detached.'
<- This message is printed when both of things happen when checking.
Select polygon objects you want to convert to NURBS surfaces
(all the faces of the polygon object you selected must be quadrangle), And select the option about the original object(Hide, Keep, Remove), and finally click the 'PolyToNURBS' button.
*** Updated( October 28, 2016 )
PolyToNURBS function in the previous version converts only the selected OBJECTS(Version 1.0.0), but now(Version 1.1.0), not only the selected object but also selected FACES from the objects can be converted to NURBS, So you don't have to extract faces you want to convert, from the original object before executing this function, just select faces and click the button.
*** Updated( December 26, 2016 )
Fixed some error with NURBSToPoly function.
- NURBS to Poly
When converting NURBS to polygons, using 'NURBS to Polygons' command
already existing in Maya is slightly incorrect, especially when the selected NURBS objects are bent or warped, or sometimes it requires some additional modifications, So I made a function that converts NURBS surface to polygons much more accurately and than the existing 'NURBS to Polygons' command in Maya, and without some bothering modifications, just converting it with maintaining its original shape and number of its spans. Just the same as 'PolyToNURBS' above, it also has an option about 'Original object'. Select NURBS surfaces you want to convert to polygon objects (even if those surfaces are in one group, select the surfaces in that group, not only group), And select the option about the original object (Hide, Keep, Remove), and finally click the
'NURBSToPoly' button.
- NURBS UV updown
Up or down spansU and spansV.
- Uniform NURBS Patch
Script for uniformalizing NURBS Surface's control vertices.
'U only' is only for NURBS Surface's cvU, 'V only' is for cvV, 'Both' is for both.
- etc.(New functions will be added on this section.)
- Attach Surface(bunch)
Attach all selected surfaces by their selection order.
- Extend Surface(selected isoparm)
Extend surface from selected isoparm.
- How to assign hotkey
First, open hotkey editor(Window -> Settings/Preferences -> Hotkey Editor).
Set language as Python and write
function name on command line. And before using
hotkey you assigned, you have to open the script you saved on shelf
by clicking the icon once to activate these functions in Maya.
- Name of the functions(Right side of the arrow is the name of the functions)
Quadrangle Check -> not_quad_check()
PolyToNURBS -> polygon_to_nurbs(original_object)
* This 'original object' arguement is connected to Polygon NURBS Converter tool's 'Original object' option.
So if you write arguement as 'original object', it follows default option settings, 'Hide'.
If you want to specify that option, write function like this.
polygon_to_nurbs('Hide')
polygon_to_nurbs('Keep')
polygon_to_nurbs('Remove')
NURBSToPoly -> nurbs_to_polygon(original_object)
* It is same as PolyToNURBS' 'original_object' arguement above.
nurbs_to_polygon('Hide')
nurbs_to_polygon('Keep')
nurbs_to_polygon('Remove')
NURBS UV updown
spansU Up -> nurbs_uv_ud(1)
spansV Up -> nurbs_uv_ud(v=1)
spansU Down -> nurbs_uv_ud(-1)
spansV Down -> nurbs_uv_ud(v=-1)
Uniform NURBS Patch
U only -> uniform_patch(0)
V only -> uniform_patch(1)
Both(U and V) -> uniform_patch(2)
etc.
Attach Surface(bunch) -> attach_bunch()
Extend Surface(selected isoparm) -> extend_surf()
Video Link
Tutorials - 01(Intro and Installing) - https://www.youtube.com/watch?v=ptkaxPbTbNE
Tutorials - 02(PolyToNURBS function) - https://www.youtube.com/watch?v=R_zSabSZsm4
Tutorials - 03(NURBSToPoly function) - https://www.youtube.com/watch?v=1rBHQ23w5Ko
Polygon NURBS Converter Update - ver 1.1.0 - https://www.youtube.com/watch?v=TOhsdX6aAqI