public ConvexDecompositionSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
GraphicsScreen.ClearBackground = true;
GraphicsScreen.BackgroundColor = Color.CornflowerBlue;
SetCamera(new Vector3F(3, 3, 3), 0.8f, -0.6f);
// Load model.
_modelNode = ContentManager.Load<ModelNode>("Saucer/Saucer").Clone();
// Combine all meshes of the model into a single TriangleMesh.
TriangleMesh mesh = new TriangleMesh();
foreach (var meshNode in _modelNode.GetChildren().OfType<MeshNode>())
{
var childMesh = MeshHelper.ToTriangleMesh(meshNode.Mesh);
childMesh.Transform(meshNode.PoseWorld * Matrix44F.CreateScale(meshNode.ScaleWorld));
mesh.Add(childMesh);
}
// Start convex decomposition on another thread.
_convexDecomposition = new ConvexDecomposition();
_convexDecomposition.ProgressChanged += OnProgressChanged;
_convexDecomposition.AllowedConcavity = 0.8f;
_convexDecomposition.IntermediateVertexLimit = 65536;
_convexDecomposition.VertexLimit = 64;
// 0 gives optimal results but is the slowest. Small positive values improve
// speed but the result might be less optimal.
_convexDecomposition.SmallIslandBoost = 0.02f;
_convexDecomposition.SampleTriangleCenters = true;
_convexDecomposition.SampleTriangleVertices = true;
// Experimental multithreading. Enable at own risk ;-)
_convexDecomposition.EnableMultithreading = true;
_convexDecomposition.DecomposeAsync(mesh);
}
