private void ParseStrips(NiTriStrips strips)
{
List <string> export = new List <string>();
NiTriStripsData geometry = (NiTriStripsData)strips.Data.Object;
List <Triangle> triangles = new List <Triangle>();
foreach (ushort[] points in geometry.Points)
{
bool t = false;
int j = 1;
ushort p1 = points[0];
ushort p2 = points[1];
while (j < points.Length - 1)
{
ushort p3 = points[j + 1];
if (p1 != p2 && p1 != p3 && p2 != p3)
{
if (t)
{
triangles.Add(new Triangle(p1, p3, p2));
}
else
{
triangles.Add(new Triangle(p1, p2, p3));
}
}
j = j + 1;
p1 = p2;
p2 = p3;
t = !t;
}
}
// Verticles (v)
if (geometry.HasVertices && geometry.NumVertices >= 3)
{
Matrix transformationMatrix = ComputeWorldMatrix(strips);
computePolys(triangles.ToArray(), geometry.Vertices, transformationMatrix);
}
}
public static TriangleCollection GetTrianglesFromGeometryStrips(this NiTriStripsData stripsData, Matrix transformationMatrix)
{
var stripsLength = stripsData.Points.Length;
var indices = stripsData.Points.Select(strip =>
{
var points = strip;
var pointsLength = points.Length;
if (pointsLength > 2)
{
var tris = new List <TriangleIndex>();
var a = points[0];
var b = a;
var c = points[1];
for (int pts = 2; pts < pointsLength; pts++)
{
a = b;
b = c;
c = points[pts];
if (a != b && b != c && c != a)
{
tris.Add(pts % 2 == 0 ? new TriangleIndex {
A = a, B = b, C = c
} : new TriangleIndex {
A = a, B = c, C = b
});
}
}
return(tris);
}
return(new List <TriangleIndex>());
});
return(new TriangleCollection
{
Vertices = stripsData.Vertices.Select(vert => { Vector3 trans; Vector3.Transform(ref vert, ref transformationMatrix, out trans); return trans; }).ToArray(),
Indices = indices.SelectMany(tri => tri).ToArray()
});
}
private string ParseStrips(NiTriStrips strips)
{
if (!strips.Data.IsValid())
{
return("");
}
NiTriStripsData geometry = (NiTriStripsData)strips.Data.Object;
Matrix transformationMatrix = ComputeWorldMatrix(strips);
// The final text
List <string> export = new List <string>();
// Set Object name
export.Add("g Strip " + strips.Name + Environment.NewLine);
// Verticles (v)
if (geometry.HasVertices && geometry.NumVertices >= 3)
{
export.Add(printVertices(geometry.Vertices, transformationMatrix));
}
// Texture coordinates (vt)
if (geometry.UVSets.Length > 0)
{
export.Add(printUvSets(geometry.UVSets));
}
// Normals (vn)
if (geometry.HasNormals)
{
export.Add(printNormals(geometry.Normals, transformationMatrix));
}
if (geometry.Points.Length > 0)
{
List <Triangle> triangles = new List <Triangle>();
foreach (ushort[] points in geometry.Points)
{
bool t = false;
int j = 1;
ushort p1 = points[0];
ushort p2 = points[1];
while (j < points.Length - 1)
{
ushort p3 = points[j + 1];
if (p1 != p2 && p1 != p3 && p2 != p3)
{
if (t)
{
triangles.Add(new Triangle(p1, p3, p2));
}
else
{
triangles.Add(new Triangle(p1, p2, p3));
}
}
j = j + 1;
p1 = p2;
p2 = p3;
t = !t;
}
}
export.Add(printTriangles(triangles.ToArray(), (geometry.UVSets.Length > 0)));
}
return(string.Join(Environment.NewLine, export));
}
