[Closed] 3ds max sdk .NET

PolyTools3D, indeed, the IObjectWrapper looks very promising, I didn’t even know there as such a thing to begin with. This is why the docs should have a couple of examples presenting the basic functionality and ways to achieve it.

Excuse my next question, but I’m really fresh to this whole C# and even if I know how to write some basic code, this somehow escapes me (and I don’t have a C# guru to pray to yet): how do I create a IObjectWrapper object from a INode / IObjectState / an object in the scene? Using those interfaces is a bit mysterious to me at this moment…

You have an example in this thread (post #11):
http://forums.cgsociety.org/showthread.php?t=1138801

            //Prepare object
            IINode node = global.COREInterface.GetINodeByHandle(handle);
            IObjectState os = node.EvalWorldState(0, true);
            IObjectWrapper ow = global.ObjectWrapper.Create();
            ow.Init(0, os, false, 0, 0);

            //Get verts/faces
            int vertsNum = ow.NumVerts;
            int facesNum = ow.NumFaces;

Here’s a part of my mxs/c#sdk function for meshop.getElementsUsingFace replacement.
Is there any faster method available for converting IBitarray to maxscript bitarray?

...
IBitArray = g.BitArray.Create IMesh.NumFaces_ 
IBitArray.ClearAll()

IMesh.ElementFromFace ((firstBit faces)-1) IBitArray IAdjFaceList
IMesh.FaceSel = IBitArray
elementFaces  = getFaceSelection obj
faces -= elementFaces  
...

did you compare .net and mxs versions of element from face?

Sure, I did my tests on a ~100k mesh and got these numbers:

[quote=]getEditableMeshElementsSDK() Time: 2.591sec. Mem: 680928L
getEditableMeshElements() Time: 205.979sec. Mem: 681248L
Both of functions seem to produce identical results.

i’m asking about IMesh.ElementFromFace vs meshop.getElementsUsingFace

Don’t quite understand what I should compare, so here’re my functions.

fn getEditableMeshElementsSDK obj = (

    fn firstBit bits = (
    
        local b
        for n in bits while not (b = n; bits[n]) do ()
        b
    )

    local g            = (dotnetclass "Autodesk.Max.GlobalInterface").Instance
    local INode        = g.COREInterface14.GetINodeByHandle obj.inode.handle
    local IMesh        = (INode.EvalWorldState 0 true ).Obj.Mesh_
    local IAdjFaceList = g.AdjFaceList.Create IMesh (g.AdjEdgeList.Create IMesh)
        
    local IBitArray = g.BitArray.Create IMesh.NumFaces_ 

    local faces = #{1..obj.numfaces}
    local elements = #()

    
    -- CACHED FUNCTIONS
    local IMeshElementFromFace = IMesh.ElementFromFace
    local IBitArrayClearAll = IBitArray.ClearAll    
    
    while not faces.isEmpty do (
        
        IBitArrayClearAll()
        IMeshElementFromFace ((firstBit faces)-1) IBitArray IAdjFaceList

        IMesh.FaceSel = IBitArray
        elementFaces  = getFaceSelection obj
        faces -= elementFaces
        
        append elements elementFaces
        
    )
    
   elements

)

fn getEditableMeshElements obj = (
    
    fn firstBit bits = 
    (
        local b
        for n in bits while not (b = n; bits[n]) do ()
        b
    )

    local faces = #{1..obj.numfaces}
    local meshopgetElementsUsingFace = meshop.getElementsUsingFace
    local elements = #()
    
    while not faces.isEmpty do (

        element = meshopgetElementsUsingFace obj (firstBit faces)
        append elements element        
        faces -= element
        
    )
    
    elements
    
)

Have you seen this thread?
http://forums.cgsociety.org/showthread.php?p=8027554#post8027554

I definitely have seen it before, thx. Feel like reinventing the wheel

I’m trying to create CustomAttrib using SDK-NET.
I really need help. Problems I have:

• How to define the descriptor (or the plugin) to get right parameters names (the track view show really extrange names)
• When saving the scene in 3dsMax, the customAttrib is saved but the parameters values are the ones from creation, not the modified ones.

The C# code:
http://www.proin3d.org/pathscripts/DOWNLOAD/TEMP/CustomAttrib-01.cs

The compiled dll (must change the extension from ._dll to .dll)
http://www.proin3d.org/pathscripts/DOWNLOAD/TEMP/CustomAttrib._dll

The maxscript to test it (must change the path for loading the dll):
http://www.proin3d.org/pathscripts/DOWNLOAD/TEMP/NET_CustomAttrib-01.ms

Any help will be wellcomed. I’m absolutely new with SDK plugins and its Descriptors.