NewScene(null, null);

// Create a cylinder to be deformed

CreatePrim("Cylinder", "MeshSurface", null, null);

SetValue("cylinder.polymsh.geom.subdivu", 20, null);

SetValue("cylinder.polymsh.geom.subdivv", 20, null);

SetValue("cylinder.cylinder.height", 12.264, null);

Create2DSkeleton(0, -6, 0.6, 0, -5.25, 0.525, -5.7, 0, 0, 4, null, null);

// Create a chain of bones to deform the cylinder with

AppendBone("eff", -0.16, -2.5, 0.25, null);

AppendBone("eff", -0.12, 0.6, 0, null);

AppendBone("eff", -0.12, 3.4, -0.34, null);

AppendBone("eff", -0.12, 5.7, -0.57, null);

AppendBone("eff", -0.12, 6.5, -0.65, null);

// Deform the cylinder

SelectObj("cylinder", null, true);

ApplyFlexEnv("cylinder;root,bone,bone1,bone2,bone3,bone4,bone5,bone6,bone7,bone8,bone9,eff", null, 2);

SelectObj("eff", null, true);

Translate(null, -4.8, -8.4, 0.84, siRelative, siView, siObj, siXYZ, null, null, null, null, null, null, null, null, null, 0, null);

SelectObj("cylinder", null, true);

SetValue("cylinder.polymsh.cls.EnvelopWeightCls.Envelope_Weights.autoenvassign.defnbskelobj", 4, null);

// Open the weight editor to look at how the bones are assigned

OpenView("Weight Editor", null);

LockEnvelopeWeights("cylinder.polymsh.cls.EnvelopWeightCls.Envelope_Weights", Array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), Array(4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4), null);

XSIUIToolkit.MsgBox("Note that in the Weight Editor each bone is affected by four deformers, and some of the weights of bone3 are locked.  A limit of 2 deformers will now be applied.");

// Limit to two the number of deformers that apply to a given vertex

LimitEnvelopeDeformers("cylinder.polymsh.cls.EnvelopWeightCls.Envelope_Weights", null, 2);

XSIUIToolkit.MsgBox("Only two deformers are permitted to affect a given vertex, and the weights have been normalized.  Note that the locked weights were not modified.");