public static void Run()
{
//ExStart:TriangulateMesh
// The path to the documents directory.
string MyDir = RunExamples.GetDataDir();
// Initialize scene object
Scene scene = new Scene();
scene.Open(MyDir + "document.fbx");
scene.RootNode.Accept(delegate(Node node)
{
Mesh mesh = node.GetEntity <Mesh>();
if (mesh != null)
{
// Triangulate the mesh
Mesh newMesh = PolygonModifier.Triangulate(mesh);
// Replace the old mesh
node.Entity = mesh;
}
return(true);
});
MyDir = MyDir + RunExamples.GetOutputFilePath("document.fbx");
scene.Save(MyDir, FileFormat.FBX7400ASCII);
//ExEnd:TriangulateMesh
Console.WriteLine("\nMesh has been Triangulated.\nFile saved at " + MyDir);
}
/// <summary>
/// Triangulate the polygon into a lot of triangles
/// </summary>
private void DoTriangulate()
{
triangles = null;
if (points.Count <= 3)
{
return;
}
// Convert to Vector4[]
Vector4[] controlPoints = new Vector4[points.Count];
for (int i = 0; i < points.Count; i++)
{
controlPoints[i] = new Vector4(points[i].X, points[i].Y, 0);
}
// Triangulate the polygon
triangleIndices = PolygonModifier.Triangulate(controlPoints);
// Save triangle vertex for later drawing.
triangles = new Vector4[triangleIndices.Length][];
for (int i = 0; i < triangleIndices.Length; i++)
{
int[] triangleFace = triangleIndices[i];
Vector4[] triangle = triangles[i] = new Vector4[3];
triangle[0] = controlPoints[triangleFace[0]];
triangle[1] = controlPoints[triangleFace[1]];
triangle[2] = controlPoints[triangleFace[2]];
}
}
public static void Run()
{
// ExStart:ConvertPolygonsToTriangles
// Load an existing 3D file
Scene scene = new Scene(RunExamples.GetDataFilePath("document.fbx"));
// Triangulate a scene
PolygonModifier.Triangulate(scene);
// Save 3D scene
scene.Save(RunExamples.GetOutputFilePath("triangulated_out.fbx"), FileFormat.FBX7400ASCII);
// ExEnd:ConvertPolygonsToTriangles
}
public static void Run()
{
//ExStart:ConvertPolygonsToTriangles
// The path to the documents directory.
string MyDir = RunExamples.GetDataDir();
// Load an existing 3D file
Scene scene = new Scene(MyDir + "document.fbx");
// Triangulate a scene
PolygonModifier.Triangulate(scene);
// Save 3D scene
scene.Save(MyDir + "triangulated_out_.fbx", FileFormat.FBX7400ASCII);
//ExEnd:ConvertPolygonsToTriangles
}
public static void Run()
{
// ExStart:Save3DMeshesInCustomBinaryFormat
// load a 3D file
Scene scene = new Scene(RunExamples.GetDataFilePath("test.fbx"));
/*
* 3D format demonstration is simple
*
* struct File {
* MeshBlock blocks[];
* };
*
* struct Vertex {
* float x;
* float y;
* float z;
* };
*
* struct Triangle {
* int a;
* int b;
* int c;
* };
*
* struct MeshBlock {
* int numControlPoints;
* int numTriangles;
* Vertex vertices[numControlPoints];
* Triangle faces[numTriangles];
* };
*/
// open file for writing in binary mode
using (var writer = new BinaryWriter(new FileStream(RunExamples.GetOutputFilePath("Save3DMeshesInCustomBinaryFormat_out"), FileMode.Create, FileAccess.Write)))
{
// visit each descent nodes
scene.RootNode.Accept(delegate(Node node)
{
foreach (Entity entity in node.Entities)
{
// only convert meshes, lights/camera and other stuff will be ignored
if (!(entity is IMeshConvertible))
{
continue;
}
Mesh m = ((IMeshConvertible)entity).ToMesh();
var controlPoints = m.ControlPoints;
// triangulate the mesh, so triFaces will only store triangle indices
int[][] triFaces = PolygonModifier.Triangulate(controlPoints, m.Polygons);
// gets the global transform matrix
Matrix4 transform = node.GlobalTransform.TransformMatrix;
// write number of control points and triangle indices
writer.Write(controlPoints.Count);
writer.Write(triFaces.Length);
// write control points
for (int i = 0; i < controlPoints.Count; i++)
{
// calculate the control points in world space and save them to file
var cp = transform * controlPoints[i];
writer.Write((float)cp.x);
writer.Write((float)cp.y);
writer.Write((float)cp.z);
}
// write triangle indices
for (int i = 0; i < triFaces.Length; i++)
{
writer.Write(triFaces[i][0]);
writer.Write(triFaces[i][1]);
writer.Write(triFaces[i][2]);
}
}
return(true);
});
}
// ExEnd:Save3DMeshesInCustomBinaryFormat
}