Re: A new cage deformer

Wed, 18 Dec 2013 00:12:36 -0800 

I got the same error here with SI 2013 SP1.

Andreas

On 12/18/2013 5:34 AM, Alok Gandhi wrote:

Hi Ahmidou,
I am getting the same error as Jeremie. From what I concur, the phi distribution on sphere node furnishes an array of position which is plugged into the direction of the a raycast node. The direction can be either a single vector or vector per point of the deformee while you are are supplying an array of vector, thereby causing incompatible types error.
I did not have time to compare your implementation with the paper to further debug this, but this can give you an direction to further solve this issue. 

Either that or we are not setting up in the tree in the correct way.
On Tue, Dec 17, 2013 at 9:09 PM, Jeremie Passerin <gerem....@gmail.com <mailto:gerem....@gmail.com>> wrote: 

    Not sure, I'll try again tomorrow morning..

    if anyone else on the list is testing it, let me know if it works
    for you.

    thanks again for sharing, that might be a nice addition to my tool
    set !


    On 17 December 2013 17:32, Ahmidou.xsi <ahmidou....@gmail.com
    <mailto:ahmidou....@gmail.com>> wrote:

        I'm not in front on my computer, but what kind of error did
        you got?

        Le 18 déc. 2013 à 11:52, Jeremie Passerin <gerem....@gmail.com
        <mailto:gerem....@gmail.com>> a écrit :


        Nice job Ahmidou !
        Looks pretty straight forward but I wasn't able to make it
        work yet. :D
        I got an error on the phi distribution on Sphere... I might
        be doing something wrong.
        I'm using XSI 2013, could that be it ?

        Here is what I've done


        # python
        xsi = Application

        # Your path here !
        compoundPath =
        
"\\\\source\\source\\dev\\passerin\\blurdev\\workgroups\\xsi_blurdev\\data\\Compounds"

        xsi.CreatePrim("Sphere", "MeshSurface", "", "")
        xsi.SetValue("sphere.polymsh.geom.subdivu", 24, "")
        xsi.SetValue("sphere.polymsh.geom.subdivv", 24, "")
        xsi.FreezeObj("", "", "")
        xsi.CreatePrim("Cube", "MeshSurface", "", "")
        xsi.SetValue("cube.cube.length", 9, "")
        xsi.ApplyTopoOp("TriangulatePolygons", "cube",
        "siUnspecified", "siPersistentOperation", "")
        xsi.FreezeObj("", "", "")

        xsi.SelectObj("sphere", "", True)
        xsi.ApplyOp("ICETree", "sphere", "siNode", "", "", 0)
        xsi.AddICECompoundNode(compoundPath+"\\initPMVC.xsicompound",
        "sphere.polymsh.ICETree")
        xsi.ConnectICENodes("sphere.polymsh.ICETree.port1",
        "sphere.polymsh.ICETree.initPMVC.Execute")
        xsi.SelectObj("cube", "", "")
        xsi.AddICENode("GetDataNode", "sphere.polymsh.ICETree")
        xsi.SetValue("sphere.polymsh.ICETree.SceneReferenceNode.reference",
        "cube", "")
        xsi.ConnectICENodes("sphere.polymsh.ICETree.initPMVC.cage",
        "sphere.polymsh.ICETree.SceneReferenceNode.outname")
        xsi.SelectObj("sphere", "", True)
        xsi.ApplyOp("ICETree", "sphere", "siNode", "", "", 0)
        xsi.MoveOperatorAfter("sphere.polymsh",
        "sphere.polymsh.ICETree1", "sphere.polymsh.shapemarker")
        xsi.AddICECompoundNode(compoundPath+"\\PMVC.xsicompound",
        "sphere.polymsh.ICETree1")
        xsi.ConnectICENodes("sphere.polymsh.ICETree1.port1",
        "sphere.polymsh.ICETree1.PMVC.Execute")
        xsi.SelectObj("cube", "", "")
        xsi.AddICENode("GetDataNode", "sphere.polymsh.ICETree1")
        xsi.SetValue("sphere.polymsh.ICETree1.SceneReferenceNode.reference",
        "cube", "")
        xsi.ConnectICENodes("sphere.polymsh.ICETree1.PMVC.cage",
        "sphere.polymsh.ICETree1.SceneReferenceNode.outname")



        On 17 December 2013 15:37, Alok Gandhi
        <alok.gandhi2...@gmail.com
        <mailto:alok.gandhi2...@gmail.com>> wrote:

            Will check that out, thanks Ahmidou!


            On Tue, Dec 17, 2013 at 6:28 PM, Ahmidou Lyazidi
            <ahmidou....@gmail.com <mailto:ahmidou....@gmail.com>> wrote:

                Here is a new cage defomer based on this paper:
                http://www.wisdom.weizmann.ac.il/~ylipman/pmvc/pmvc.htm
                <http://www.wisdom.weizmann.ac.il/%7Eylipman/pmvc/pmvc.htm>

                The result is very close the Harmonic coordinates
                deformation done by Pixar, but faster to compute,
                it's also better deformation than the Softimage
                factory one.
                To use it, just connect the initPMVC compound in the
                modeling region, and the PMVC one in the animation
                region, both on the deformed object.
                The cage must be triangulated! .. but once your happy
                with the deformation the initPMVC compound may be
                frozen , and then cage can be quadrangulated.
                The only limitation is that all the point of the
                deformee must be inside the cage.

                http://www.si-community.com/community/viewtopic.php?f=19&t=4683

                Cheers
                -----------------------------------------------
                Ahmidou Lyazidi
                Director | TD | CG artist
                http://vimeo.com/ahmidou/videos
                http://www.cappuccino-films.com
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