Ice testing

[thorsnuts]

Hello...

Im trying to understand ICE. Im going through tutorials and such and don't understand what Im doing wrong with this simple setup.

Im basically trying to get those blue vectors from the grid to follow the center of the Null. When the Null is at 0,0,0 it's there, but when I start to move the null around... there seems to be an Offset from the center of the null.

attached is a screen grab of the setup.

What could I be doing wrong?

thank you,

[Tekano]

hello thorsnuts. that should work. I do not know what other steps you may have done or not to break it.

in a new scene try this (copy paste into script editor and run) its just a capture of the steps made to do what you want.

Application.CreatePrim("Grid", "MeshSurface", "", "")
Application.GetPrim("Null", "", "", "")
Application.Translate("", 0, 2.59034841640932, 0, "siRelative", "siView", "siObj", "siXYZ", "", "", "", "", "", "", "", "", "", 0, "")
Application.ActivateObjectSelTool("")
Application.SelectObj("grid", "", True)
Application.SelectObj("null", "", True)
Application.Translate("", -1.70803006574591, 9.75632296382307E-02, -9.75632296382305E-03, "siRelative", "siView", "siObj", "siXYZ", "", "", "", "", "", "", "", "", "", 0, "")
Application.ActivateObjectSelTool("")
Application.ActivateObjectSelTool("")
Application.SelectObj("grid", "", True)
Application.ApplyOp("ICETree", "grid", "siNode", "", "", 0)
Application.SelectObj("null", "", True)
Application.OpenAttachments("")
Application.SetMarking("kine.global.pos")
Application.AddICENode("GetDataNode", "grid.polymsh.ICETree")
Application.SetValue("grid.polymsh.ICETree.SceneReferenceNode.reference", "null.kine.global.pos", "")
Application.AddICECompoundNode("Get Point Position", "grid.polymsh.ICETree")
Application.AddICENode("$XSI_DSPRESETS\\ICENodes\\SubtractNode.Preset", "grid.polymsh.ICETree")
Application.ConnectICENodes("grid.polymsh.ICETree.SubtractNode.first", "grid.polymsh.ICETree.SceneReferenceNode.value")
Application.ConnectICENodes("grid.polymsh.ICETree.SubtractNode.second", "grid.polymsh.ICETree.Get_Point_Position.Value")
Application.AddICECompoundNode("Set Data", "grid.polymsh.ICETree")
Application.ConnectICENodes("grid.polymsh.ICETree.Set_Data.Value", "grid.polymsh.ICETree.SubtractNode.result")
Application.ConnectICENodes("grid.polymsh.ICETree.port1", "grid.polymsh.ICETree.Set_Data.Execute")
Application.SetValue("grid.polymsh.ICETree.Set_Data.Reference", "self.foo", "")
Application.DisplayPortValues("grid.polymsh.ICETree.Set_Data.Value", True, 1, True, "", 0, 0, 0, 1, False, True, 0.62, 1, 0.62, 1, False, 0, 10000, 1, False, False, 0, 10, False, True, False, 100)
Application.SelectObj("null", "", True)
Application.Translate("", 0.420007393216209, -0.404190522786957, 4.04190522786956E-02, "siRelative", "siView", "siObj", "siXYZ", "", "", "", "", "", "", "", "", "", 0, "")

[Bullit]

It should work like Tekano says. Just redo the scene.

Edit: sometimes not connected nodes can affect the ice tree for some reason. So delete those. Might be the reason.

[thorsnuts]

thank you fellas... I know what I did wrong. I actually scaled the grid up and that was throwing off the global position I guess. So the grid wasn't at its resting scale of 1,1,1.

Just asking.. but how would I get the vectors to follow the null in that scenario?

thanks for the time.

[Bullit]

Multiply the kine.global.scale by the point position goes there but the vector continues.

[NNois]

Multiply the kine.global.scale by the point position goes there but the vector continues.

nope this is a wrong advice...
this setup should cover all the cases
get self.kine.global matrix then use a multiply vector by matrix to multiply the point positions

[thorsnuts]

Thank you guys... I am learning little by little

[thorsnuts]

get self.kine.global matrix then use a multiply vector by matrix to multiply the point positions

How do I get the global matrix? Would that be an SRT to matrix node?

[Bullit]

I think Self.Kine.Global is a matrix.

[thorsnuts]

Hahahaaa. Ok. I gotta get the lingo down also!!

Thanks again