private bool TryExtractTriShape(NiObject obj, Matrix4 worldMatrix, bool invertTris, bool both, ref Vector3[] vertices, ref Triangle[] outtriangles)
{
var shape = obj as NiTriShape;
if (shape == null)
{
return(false);
}
eFaceDrawMode mode = FindDrawMode(shape);
if (mode == eFaceDrawMode.DRAW_CCW_OR_BOTH)
{
mode = both ? eFaceDrawMode.DRAW_BOTH : eFaceDrawMode.DRAW_CCW;
}
Matrix4 myMatrix = ComputeWorldMatrix(shape) * worldMatrix;
var data = shape.Data.Object as NiTriShapeData;
if (data.Triangles.Length == 0)
{
return(false);
}
vertices = new Vector3[data.Vertices.Length];
for (int i = 0; i < data.Vertices.Length; i++)
{
vertices[i] = Vector3.Transform(data.Vertices[i], myMatrix);
}
var triangles = new List <Triangle>();
// CCW
if (mode == eFaceDrawMode.DRAW_BOTH || (mode == eFaceDrawMode.DRAW_CCW) != invertTris)
{
for (int i = 0; i < data.Triangles.Length; i++)
{
triangles.Add(new Triangle(data.Triangles[i].Z, data.Triangles[i].Y, data.Triangles[i].X));
}
}
// CC
if (mode == eFaceDrawMode.DRAW_BOTH || (mode == eFaceDrawMode.DRAW_CW) != invertTris)
{
triangles.AddRange(data.Triangles);
}
outtriangles = triangles.ToArray();
return(true);
}
/// <summary>
/// Initializes a new instance of the <see cref="NiStencilProperty"/> class.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="reader">The reader.</param>
public NiStencilProperty(NiFile file, BinaryReader reader) : base(file, reader)
{
if (this.File.Header.Version <= eNifVersion.VER_10_0_1_2)
{
this.Flags = reader.ReadUInt16();
}
if (this.File.Header.Version <= eNifVersion.VER_20_0_0_5)
{
this.IsStencilEnabled = reader.ReadBoolean(Version);
this.StencilFunction = (eStencilCompareMode)reader.ReadUInt32();
this.StencilRef = reader.ReadUInt32();
this.StencilMask = reader.ReadUInt32();
this.FailAction = (eStencilAction)reader.ReadUInt32();
this.ZFailAction = (eStencilAction)reader.ReadUInt32();
this.PassAction = (eStencilAction)reader.ReadUInt32();
this.FaceDrawMode = (eFaceDrawMode)reader.ReadUInt32();
}
if (this.File.Header.Version >= eNifVersion.VER_20_1_0_3)
{
this.Flags = reader.ReadUInt16();
this.StencilRef = reader.ReadUInt32();
this.StencilMask = reader.ReadUInt32();
}
}
private bool TryExtractTriStrips(NiObject obj, Matrix4 worldMatrix, bool invertTris, bool both, ref Vector3[] vertices, ref Triangle[] outtriangles)
{
var strips = obj as NiTriStrips;
if (strips == null)
{
return(false);
}
eFaceDrawMode mode = FindDrawMode(strips);
if (mode == eFaceDrawMode.DRAW_CCW_OR_BOTH)
{
mode = both ? eFaceDrawMode.DRAW_BOTH : eFaceDrawMode.DRAW_CCW;
}
Matrix4 myMatrix = ComputeWorldMatrix(strips) * worldMatrix;
var data = strips.Data.Object as NiTriStripsData;
if (data.Vertices.Length == 0)
{
return(false);
}
vertices = new Vector3[data.Vertices.Length];
for (int i = 0; i < data.Vertices.Length; i++)
{
vertices[i] = Vector3.Transform(data.Vertices[i], myMatrix);
}
var triangles = new List <Triangle>();
foreach (var points in data.Points)
{
// CCW
if (mode == eFaceDrawMode.DRAW_BOTH || (mode == eFaceDrawMode.DRAW_CCW) != invertTris)
{
ushort a = points[0];
ushort b = points[0];
ushort c = points[1];
bool flip = false;
for (int s = 2; s < points.Length; s++)
{
a = b;
b = c;
c = points[s];
if (a != b && b != c && c != a)
{
triangles.Add(!flip ? new Triangle(a, c, b) : new Triangle(a, b, c));
}
flip = !flip;
}
}
// CC
if (mode == eFaceDrawMode.DRAW_BOTH || (mode == eFaceDrawMode.DRAW_CW) != invertTris)
{
ushort a = points[0];
ushort b = points[0];
ushort c = points[1];
bool flip = false;
for (int s = 2; s < points.Length; s++)
{
a = b;
b = c;
c = points[s];
if (a != b && b != c && c != a)
{
triangles.Add(!flip ? new Triangle(a, b, c) : new Triangle(a, c, b));
}
flip = !flip;
}
}
}
outtriangles = triangles.ToArray();
return(true);
}
public static void AddModelToObj(WavefrontObjFile objFile, NiFile model, Matrix worldMatrix, string[] filter, bool exclude)
{
if (model == null)
{
return;
}
bool foundMesh = false;
// find all trimeshs and tristrips
foreach (NiObject obj in model.ObjectsByRef.Values)
{
var avNode = obj as NiAVObject;
if (avNode == null || ((exclude && IsFiltered(avNode, filter)) || (!exclude && !IsFiltered(avNode, filter))))
{
continue;
}
var shape = obj as NiTriShape;
if (shape != null)
{
eFaceDrawMode mode = FindDrawMode(shape);
foundMesh = true;
Matrix myMatrix = ComputeWorldMatrix(shape) * worldMatrix;
var data = shape.Data.Object as NiTriShapeData;
if (data.Triangles.Length == 0)
{
continue;
}
var transformedVertices = new Vector3[data.Vertices.Length];
for (int i = 0; i < data.Vertices.Length; i++)
{
Vector4 transformedVector = Vector3.Transform(data.Vertices[i], myMatrix);
transformedVertices[i] = new Vector3(transformedVector.X, transformedVector.Y, transformedVector.Z);
}
var triangles = new List <Triangle>();
// CCW
if (mode == eFaceDrawMode.DRAW_BOTH ||
mode == eFaceDrawMode.DRAW_CCW ||
mode == eFaceDrawMode.DRAW_CCW_OR_BOTH)
{
for (int i = 0; i < data.Triangles.Length; i++)
{
triangles.Add(new Triangle(data.Triangles[i].Z, data.Triangles[i].Y, data.Triangles[i].X));
}
}
// CC
if (mode == eFaceDrawMode.DRAW_BOTH ||
mode == eFaceDrawMode.DRAW_CW)
{
foreach (Triangle t in data.Triangles)
{
triangles.Add(t);
}
}
objFile.AddMesh(transformedVertices, triangles.ToArray());
}
var strips = obj as NiTriStrips;
if (strips != null)
{
eFaceDrawMode mode = FindDrawMode(strips);
foundMesh = true;
Matrix myMatrix = ComputeWorldMatrix(strips) * worldMatrix;
var data = strips.Data.Object as NiTriStripsData;
var transformedVertices = new Vector3[data.Vertices.Length];
for (int i = 0; i < data.Vertices.Length; i++)
{
Vector4 transformedVector = Vector3.Transform(data.Vertices[i], myMatrix);
transformedVertices[i] = new Vector3(transformedVector.X, transformedVector.Y,
transformedVector.Z);
}
var triangles = new List <Triangle>();
foreach (var points in data.Points)
{
// CCW
if (mode == eFaceDrawMode.DRAW_BOTH ||
mode == eFaceDrawMode.DRAW_CCW ||
mode == eFaceDrawMode.DRAW_CCW_OR_BOTH)
{
for (int i = 0; i < points.Length - 2; i++)
{
triangles.Add(i % 2 == 0
? new Triangle(points[i + 2], points[i + 1], points[i + 0])
: new Triangle(points[i + 2], points[i + 0], points[i + 1]));
}
}
// CC
if (mode == eFaceDrawMode.DRAW_BOTH ||
mode == eFaceDrawMode.DRAW_CW)
{
for (int i = 0; i < points.Length - 2; i++)
{
triangles.Add(i % 2 == 0
? new Triangle(points[i + 0], points[i + 1], points[i + 2])
: new Triangle(points[i + 0], points[i + 2], points[i + 1]));
}
}
}
objFile.AddMesh(transformedVertices, triangles.ToArray());
}
}
if (!foundMesh && filter[0] == "pickee")
{
// no pickee found, use collide
Console.WriteLine("Warning: Using collidee!");
AddModelToObj(objFile, model, worldMatrix, new[] { "collide" }, false);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="NiStencilProperty"/> class.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="reader">The reader.</param>
public NiStencilProperty(NiFile file, BinaryReader reader) : base(file, reader)
{
if (this.File.Header.Version <= eNifVersion.VER_10_0_1_2)
{
this.Flags = reader.ReadUInt16();
}
if (this.File.Header.Version <= eNifVersion.VER_20_0_0_5)
{
this.IsStencilEnabled = reader.ReadBoolean(Version);
this.StencilFunction = (eStencilCompareMode)reader.ReadUInt32();
this.StencilRef = reader.ReadUInt32();
this.StencilMask = reader.ReadUInt32();
this.FailAction = (eStencilAction)reader.ReadUInt32();
this.ZFailAction = (eStencilAction)reader.ReadUInt32();
this.PassAction = (eStencilAction)reader.ReadUInt32();
this.FaceDrawMode = (eFaceDrawMode)reader.ReadUInt32();
}
if (this.File.Header.Version >= eNifVersion.VER_20_1_0_3)
{
this.Flags = reader.ReadUInt16();
this.StencilRef = reader.ReadUInt32();
this.StencilMask = reader.ReadUInt32();
}
}
