XSIBlog

var myProject = ActiveProject.path;
 
// create the model
NewScene(false,false);
 
// create two cylinders
var source = CreatePrim("Cylinder", "MeshSurface", null, null);
var target = CreatePrim("Cylinder", "MeshSurface", null, null);
SetValue("cylinder1.Name", "cylinder_out", null);
FreezeObj("cylinder,cylinder_out");
 
// create a skeleton
Create2DSkeleton(0, 4, 0, 0, 0, 1, 0, 90, 0, 4, null, null);
AppendBone("eff", 0, -4, 0, null);
ApplyFlexEnv("cylinder;root,bone,bone1,eff", null, 2);
 
// apply the copy op to the second cylinders
createCopyPosOp(source,target);
DeselectAll();
 
// create an empty model
CreateModel();
ToggleVisibility("cylinder");
 
// put all objects (cylinders and chains) below the model
ParentObj("model","cylinder_out,cylinder,root");
 
// export the model to the current project
ExportModel("Model", myProject + "\\Models\\ref_geo.emdl");
 
// create the scene with a referenced model
NewScene(false,false);
SICreateRefModel(myProject + "\\Models\\ref_geo.emdl");
 
// create the local meshcopy
var result = addLocalMeshCopy(
				Dictionary.GetObject("ref_geo.cylinder"),
				Dictionary.GetObject("ref_geo.cylinder_out"));
 
// do a deform on top
ApplyOp("Push", result+".pnt[0,2,3,7,8,12,13,17,18,22,23,27,28,32,33,37,38]");
SetValue("cylinder_local.polymsh.pushop.ampl", 1 );
SelectObj("ref_geo.eff");
 
// the function to create a mesh copy
function addLocalMeshCopy(source,target)
{
	// retrieve the mesh data
	var meshData = source.ActivePrimitive.Geometry.Get2().toArray();
	var points = meshData[0].toArray();
	var polies = meshData[1].toArray();
 
	// create a new mesh
	var newMesh = ActiveSceneRoot.AddPolygonmesh(points,polies,source.name+"_local");
 
	// copy the point positions from the enveloped
	// mesh to the local copy
	createCopyPosOp(source,newMesh);
 
	// turn off the original copy op
	SetValue(target+".polymsh.copyPos.mute", true);
 
	// now copy the point positions from the local copy to the final output
	createCopyPosOp(newMesh,target);
 
	return newMesh;
}
 
// the function to create the point position copy operator
function createCopyPosOp(source,target)
{
	// create the op
	var op = XSIFactory.CreateScriptedOp( "copyPos", copyPos_Update.toString(), "JScript" );
 
	// create two ports for in and out and connect it
	op.AddOutputPort( target.ActivePrimitive );
	op.AddInputPort( source.ActivePrimitive );
	op.Connect();
}
 
// the update code for the point pos copy operator
function copyPos_Update(ctxt,outMesh,inMesh)
{
	var pos = inMesh.value.geometry.points.positionarray.toArray();
	outMesh.value.geometry.points.positionarray = pos;
}