Re: How to Hair to curves?

[Guillaume Laforge <guillaume(at)alamaison.fr>]

And here is the script to merge the curves (all the curves are merged in the first selected curve):

var my_crvlist = Selection(0).ActivePrimitive.Geometry;

for ( var i=1;i<Selection.count;i++ )
{
	var obj = Selection(i);
	var crvlist = obj.ActivePrimitive.Geometry;
	var crv = crvlist.Curves(0);

	var VBdata = crv.Get2( siSiNurbs ); 
	var data = VBdata.toArray(); 

	var crtlvertices = data[0];
	var knots = data[1];
	var isclosed = data[2];
	var degree = data[3];
	var parameterization = data[4];

	var newcrv = my_crvlist.AddCurve( crtlvertices, knots, isclosed, degree, parameterization );
}


On Thu, 3 Jan 2008 21:36:29 +0100, Guillaume Laforge <guillaume(at)alamaison.fr> wrote:
> 
> Happy 2008 !
> 
> Select your hair object and run. It creates one curve by guide.
> If you need to merge some of the curves, you will need an other script ( I
> send it to the list some time ago). 
> 
> //***************************************
> var xHair = Selection(0);
> 
> HairPointsValues( xHair )
> 
> 
> function HairPointsValues( xHair )
> {
> 		
> 	var PointsPerGuideHair = 14 ; // This is always true
> 	var valuesPerPosition = 3 ; // x,y,z
> 	var gHair = xHair.ActivePrimitive.Geometry;
> 	var aAllPositions = gHair.Points.PositionArray.toArray();
> 
> 	var cntGuideHairs = aAllPositions.length / ( valuesPerPosition *
> PointsPerGuideHair ) ;
> 	var oMesh = HairPolymesh(xHair); 
> 	var oPoints = oMesh.Geometry.Points;
> 
> 	for ( i = 0 ; i < cntGuideHairs ; i++ )
> 	{
> 		var posArray = new Array();
> 		
> 		var oHairRootx = oPoints.item(i).position.x;
> 		var oHairRooty = oPoints.item(i).position.y;
> 		var oHairRootz = oPoints.item(i).position.z;
> 		
> 		logmessage("guide n : "+i);
> 
> 		posArray.push(oHairRootx);
> 		posArray.push(oHairRooty);
> 		posArray.push(oHairRootz);
> 		posArray.push(1);
> 
> 		indexHairRoot = i * valuesPerPosition * PointsPerGuideHair ;
> 		
> 		
> 		
> 		for ( k = 0 ; k < PointsPerGuideHair ; k++ )
> 		{					
> 			xIndex = k*valuesPerPosition + indexHairRoot ;
> 			posArray.push( aAllPositions[xIndex ]);
> 			posArray.push( aAllPositions[xIndex + 1]);
> 			posArray.push( aAllPositions[xIndex + 2]);
> 			posArray.push( 1 );
> 		}
> 		var degrees = [1];
> 		var params = [siUniformParameterization];
> 		var closed = [false];
> 		var initCurve = ActivesceneRoot.AddNurbsCurveList2(1, posArray, null,
> null, null, closed, degrees, params, siSINurbs, "LinesFromGuides" );
> 	}
> 
> 
> // return the geometry source
> function HairPolymesh(HairObject)
> {
> 	//Find the hair operator.
> 	oEnum = new Enumerator( HairObject.ActivePrimitive.ConstructionHistory );
> 	for (;!oEnum.atEnd();oEnum.moveNext())
> 	{
> 		if( oEnum.item().name == "Hair Generator Operator" )
> 		{
> 			oOp = oEnum.item();
> 			oEnumInPort = new Enumerator( oOp.InputPorts ) ;
> 			for (;!oEnumInPort.atEnd();oEnumInPort.moveNext() )
> 			{
> 				var oInPort = oEnumInPort.item () ;
> 				if(oInPort.GroupName == "Group_0")
> 				{
> 					var oMesh = oInPort.Target2;
> 					return oMesh;
> 				}
> 			}
> 		}
> 	}
> }
> 
> //***********************************************
> 
> Cheers !
> 
> --
> Guillaume Laforge | La Maison
> 
> PS : If you use Linux you must add those line before the script :
> 
> // Add a push method to the JScript Array Object
> // (at)cc_on
> // (at)if ((at)_jscript_version < 5.5)
> var push = function(){
> 	for( var i = 0; arguments[ i ] != null; i++ )
> 		this[this.length++] = arguments[ i ];
> 	return( this );
> 	}
> Array.prototype.push = push;
> // (at)end
> 
> 
> 
> On Thu, 3 Jan 2008 15:19:13 -0500, "Marc-Andre Carbonneau"
> <marc-andre.carbonneau(at)ubisoft.com> wrote:
>> Heya!
>> 
>>  
>> 
>> First, Happy New Year! Wish you all the best for 2008. Lots of exciting
>> projects for you all I'm sure!
>> 
>>  
>> 
>> My TD is still on holyday so could anyone help me convert hair to
>> curves? Anyone wrote such a script or plu
> 
> 
> -
--
Guillaume Laforge | La Maison

---
Unsubscribe? Mail Majordomo(at)Softimage.COM with the following text in body:
unsubscribe xsi