public TriangleData(Vector3 p0, Vector3 p1, Vector3 p2, Rigidbody rbObj, HeightField heightField)
{
this.point0 = p0;
this.point1 = p1;
this.point2 = p2;
this.heightField = heightField;
this.center = (p0 + p1 + p2) / 3.0f;
this.height = Mathf.Abs(this.heightField.DistanceToWater(this.center));
this.normal = Vector3.Cross(p1 - p0, p2 - p0).normalized;
this.area = (Vector3.Distance(p1, p0) * Vector3.Distance(p2, p0) * Mathf.Sin(Vector3.Angle(p1 - p0, p2 - p0) * Mathf.Deg2Rad)) / 2f;
this.velocity = this.GetTriangleVelocity(rbObj);
//Velocity direction
this.velocityDir = this.velocity.normalized;
//Angle between the normal and the velocity
//Negative if pointing in the opposite direction
//Positive if pointing in the same direction
this.cosTheta = Vector3.Dot(this.velocityDir, this.normal);
}
private void clearAllLayersToolStripMenuItem_Click(object sender, EventArgs e)
{
layerBitmaps.Clear();
layers.Clear();
heightField = emptyHeightField;
UpdateHeightfieldPanel();
}
public void MultipleInstancesAreValid()
{
using (var physics = CreatePhysicsAndScene())
{
// A
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
HeightField heightField = physics.Physics.CreateHeightField(heightFieldDesc);
}
// B
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
HeightField heightField = physics.Physics.CreateHeightField(heightFieldDesc);
}
}
}
// Start is called before the first frame update
void Start()
{
Filter[] tab = (Filter[])System.Enum.GetValues(typeof(Filter));
dropdown.ClearOptions();
List <Dropdown.OptionData> optionList = new List <Dropdown.OptionData>();
foreach (var item in tab)
{
//string itemPrep = item.ToString().ToLowerInvariant().Replace('_',' ');
optionList.Add(new Dropdown.OptionData(item.ToString()));
}
dropdown.AddOptions(optionList);
slider.SetLimits(0, Hhaut * 2);
slider.SetValues(Hbas, Hhaut);
//slider.onValueChanged = ;
//h saine (blackH) = 26
//h tour eiffel whiteH = 324
Box2D box = new Box2D(test.width, test.height);
hf = new HeightField(test, box, Hbas, Hhaut);
//meshView.CreateMeshFromsize(MAX_MESH_SIZE, MAX_MESH_SIZE);//255 max pour un mesh (yes merci les terrain qui marche mal)
meshView.CreateMeshFromsize(test.width, test.height);
//meshView.createBaseTest();
StartCoroutine("updateHeigth");
}
public void MultipleDisposeCallsDoNotCauseAnException()
{
using (var physics = CreatePhysicsAndScene())
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
var cooking = physics.Physics.CreateCooking();
var stream = new MemoryStream();
bool cookResult = cooking.CookHeightField(heightFieldDesc, stream);
stream.Position = 0;
HeightField heightField = physics.Physics.CreateHeightField(stream);
Assert.IsFalse(heightField.Disposed);
// Dispose
heightField.Dispose();
Assert.IsTrue(heightField.Disposed);
// Dispose again
heightField.Dispose();
Assert.IsTrue(heightField.Disposed);
}
}
private void CreateHeightField(Scene scene, Material material)
{
const int rows = 25, columns = 25;
const float scale = 3;
var samples = CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
HeightField heightField = scene.Physics.CreateHeightField(heightFieldDesc);
//
var rigidActor = scene.Physics.CreateRigidStatic();
var heightFieldGeom = new HeightFieldGeometry(heightField, MeshGeometryFlag.DoubleSided, 1, scale, scale);
rigidActor.CreateShape(heightFieldGeom, material);
rigidActor.GlobalPose = Matrix.Translation(30, 30, -32.5f);
scene.AddActor(rigidActor);
}
private static void IntersectAndReport(HeightField heightfield, Vector3 start, Vector3 end)
{
MyIntersector intersector = new MyIntersector(heightfield);
Intersection intersection = intersector.Intersect(start, end);
Console.WriteLine((intersection != null) ? intersection.Position.ToString() : "no intersection");
}
private static void MeasureIntersectionPerformance(HeightField heightfield, Vector3 start, Vector3 end, int iterations)
{
Vector3 direction = end - start;
MyIntersector intersector = new MyIntersector(heightfield);
FootprintDebugInfo debugInfo = new FootprintDebugInfo();
Intersection isec = intersector.Intersect(start, end, ref debugInfo);
int visitedPixels = debugInfo.VisitedPixels.Count;
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < iterations; i++)
{
Intersection intersection = intersector.Intersect(start, end);
}
sw.Stop();
Console.WriteLine("Intersection?: {0}", isec != null);
Console.WriteLine("Ray length: {0:0.0}", direction.Length);
Console.WriteLine("Visited pixels: {0}", visitedPixels);
Console.WriteLine("Iterations: {0}", iterations);
Console.WriteLine("Total time: {0} ms", sw.ElapsedMilliseconds);
Console.WriteLine("Average time: {0:0.000} ms", sw.ElapsedMilliseconds / (double)iterations);
double throughput = iterations / ((double)sw.ElapsedMilliseconds * 0.001);
Console.WriteLine("Throughput: {0:0.000} traversals/s", throughput);
Console.WriteLine("Throughput of visited pixels: {0:0.000} Mpx/s", throughput * visitedPixels * 1e-6);
}
void ReleaseDesignerOutlets()
{
if (XField != null)
{
XField.Dispose();
XField = null;
}
if (YField != null)
{
YField.Dispose();
YField = null;
}
if (WidthField != null)
{
WidthField.Dispose();
WidthField = null;
}
if (HeightField != null)
{
HeightField.Dispose();
HeightField = null;
}
}
/// <summary>
/// If no "Node" instance, this method tries to create one
/// given the Collide.Shape component in this game object.
/// </summary>
/// <returns>True if the node was created - otherwise false.</returns>
private bool TryInitialize(Shape shape, DebugRenderManager manager)
{
if (Node != null)
{
return(false);
}
Collide.Mesh mesh = shape as Collide.Mesh;
HeightField heightField = shape as HeightField;
if (mesh != null)
{
Node = InitializeMesh(mesh);
}
else if (heightField != null)
{
Node = InitializeHeightField(heightField);
}
else
{
Node = PrefabLoader.Instantiate <GameObject>(PrefabName);
Node.transform.localScale = GetShape().GetScale();
}
if (Node != null)
{
var renderers = Node.GetComponentsInChildren <Renderer>();
foreach (var renderer in renderers)
{
renderer.sharedMaterial = manager.ShapeRenderMaterial;
}
}
return(Node != null);
}
private void CreateTerrain()
{
//Load the height map
Texture2D heigthMap = Engine.Graphics.CreateTexture2DFromFile("terrain.png");
//Create the HeightField using the heigth map ,divide the HeightField into and 8x8 grid of sections
//this will improve culling
HeightField heigthField = new HeightField(heigthMap, 32, 32);
heigthField.Materials[0].Diffuse = Color3.FromArgb(System.Drawing.Color.DarkGreen.ToArgb());
//Uncomment this to texture the terrain
heigthField.Materials[0].DiffuseMaps = new Texture2D[]
{
Engine.Graphics.CreateTexture2DFromFile("grass.jpg")
};
//smoot the height field using a 5x5 gaussian kernel with 4 pass
heigthField.Smoot(5, 4);
//Create the HeightField node translat it to the center of the scene, then scaling it to 1000 units in X and Z
Engine.Scene.Create("HeightFieldNode", heigthField,
Igneel.Matrix.Translate(-0.5f, 0, -0.5f) *
Igneel.Matrix.Scale(1000, 100, 1000));
}
private static void TryIntersectionPerformance()
{
List <FloatMapImage> layers = new List <FloatMapImage>();
layers.Add(((Bitmap)Bitmap.FromFile("../../data/2011-05-30_04-50-47_depth_0.png")).ToFloatMap());
layers.Add(((Bitmap)Bitmap.FromFile("../../data/2011-05-30_04-50-47_depth_1.png")).ToFloatMap());
layers.Add(((Bitmap)Bitmap.FromFile("../../data/2011-05-30_04-50-47_depth_2.png")).ToFloatMap());
layers.Add(((Bitmap)Bitmap.FromFile("../../data/2011-05-30_04-50-47_depth_3.png")).ToFloatMap());
layers.Add(((Bitmap)Bitmap.FromFile("../../data/2011-05-30_04-50-47_depth_4.png")).ToFloatMap());
HeightField heightfield = new HeightField(layers);
// no isec
//Vector3 start = new Vector3(169, 181, 0);
//Vector3 end = new Vector3(14, 191, 1);
// isec at layer 4
//Vector3 start = new Vector3(178, 180, 0);
//Vector3 end = new Vector3(33, 38, 1);
// no isec with 5 layers, traversing the filled areas
//Vector3 start = new Vector3(9, 190, 0);
//Vector3 end = new Vector3(131, 19, 1);
Vector3 start = new Vector3(100, 100, 0);
Vector3 end = new Vector3(117.5f, 115.5f, 1);
int iterations = 100000;
MeasureIntersectionPerformance(heightfield, start, end, iterations);
}
public void MultipleDisposeCallsDoNotCauseAnException()
{
using (var physics = CreatePhysicsAndScene())
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
HeightField heightField = physics.Physics.CreateHeightField(heightFieldDesc);
Assert.IsFalse(heightField.Disposed);
// Dispose
heightField.Dispose();
Assert.IsTrue(heightField.Disposed);
// Dispose again
heightField.Dispose();
Assert.IsTrue(heightField.Disposed);
}
}
private void executeGeneratorToolStripMenuItem_Click(object sender, EventArgs e)
{
if (Document.SelectedRender != null && Document.ContainsGenerator((string)generatorListBox.SelectedItem))
{
HeightRender.Generator generator = Document.GetGenerator((string)generatorListBox.SelectedItem);
if (generator != null && MessageBox.Show("Applying a generator will modify or replace the current height map. This action cannot be undone.\n\nWould you like to continue?", "Apply Generator", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
lock (undoQueue) undoQueue.Clear();
lock (redoQueue) redoQueue.Clear();
HeightField field = Document.SelectedRender.HeightField;
lock (field)
{
try
{
for (int u = 0; u < field.Width; u++)
{
for (int v = 0; v < field.Height; v++)
{
field[u, v] = (float)generator(u, v, field);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "There was a runtime error with your generator script.");
}
finally
{
UpdateRender();
}
}
}
}
}
private void CreateHeightField(Scene scene, Material material)
{
const int rows = 25, columns = 25;
const float scale = 3;
var samples = CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
var cooking = scene.Physics.CreateCooking();
var stream = new MemoryStream();
bool cookResult = cooking.CookHeightField(heightFieldDesc, stream);
stream.Position = 0;
HeightField heightField = scene.Physics.CreateHeightField(stream);
//
var rigidActor = scene.Physics.CreateRigidStatic();
var heightFieldGeom = new HeightFieldGeometry(heightField, MeshGeometryFlag.DoubleSided, 1, scale, scale);
rigidActor.CreateShape(heightFieldGeom, material);
rigidActor.GlobalPose = Matrix4x4.CreateTranslation(30, 30, -32.5f);
scene.AddActor(rigidActor);
}
public void SetupHeightField()
{
_physics = CreatePhysicsAndScene();
const int rows = 25, columns = 40;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples,
Thickness = 4.2f,
ConvexEdgeThreshold = 6.6f,
Flags = HeightFieldFlag.NoBoundaryEdges
};
var cooking = _physics.Physics.CreateCooking();
var stream = new MemoryStream();
bool cookResult = cooking.CookHeightField(heightFieldDesc, stream);
stream.Position = 0;
_heightField = _physics.Physics.CreateHeightField(stream);
Assert.IsNotNull(_heightField);
Assert.IsFalse(_heightField.Disposed);
}
void GenerateMap()
{
var startTime = DateTime.Now;
points = BlueNoiseGenerator.PoissonDiscSampling(rMin, rMax, 30, mapSize);
List <Vertex> scaffolding = BlueNoiseGenerator.Scaffolding(mapSize);
points.AddRange(scaffolding);
var duration = DateTime.Now - startTime;
Debug.Log("SeedPoints Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
List <Triangle> convexPoly = Triangulation.TriangulateConvexPolygon(scaffolding);
triangles = Triangulation.TriangleSplittingAlgorithm(points, convexPoly);
//triangles = Triangulation.IncrementalAlgorithm(points);
duration = DateTime.Now - startTime;
Debug.Log("Triangulation Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
triangles = DelaunayTriangulation.MakeTriangulationDelaunay(triangles);
duration = DateTime.Now - startTime;
Debug.Log("Delaunayification Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
triangles = DelaunayTriangulation.FillInNeighbours(triangles);
duration = DateTime.Now - startTime;
Debug.Log("Neighbours Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
// fill heightmap into y coordinates
points = HeightField.PerlinIsland(points, mapSize, 0.1f, 0.7f, 4f, 3f, 6);
duration = DateTime.Now - startTime;
Debug.Log("Heightmap Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
triangles = Voronoi.GenerateCentroids(triangles, points);
duration = DateTime.Now - startTime;
Debug.Log("Centroids Done in " + duration.TotalSeconds + "s");
startTime = DateTime.Now;
cells = CellMeshCreator.SpawnMeshes(points, cell);
duration = DateTime.Now - startTime;
Debug.Log("Meshes Done in " + duration.TotalSeconds + "s");
var camHeight = mapSize * 0.5f / Mathf.Tan(Camera.main.fieldOfView * 0.5f * Mathf.Deg2Rad);
Camera.main.transform.position = new Vector3(mapSize / 2, camHeight * 1.1f, mapSize / 2);
//DebugDraw();
}
public void CreateHeightfieldTest()
{
int rows = 25;
int columns = 25;
HeightFieldSample[] samples = new HeightFieldSample[rows * columns];
for (int r = 0; r < rows; r++)
{
for (int c = 0; c < columns; c++)
{
// Put a z and x curve together
double h = Math.Sin(c) * Math.Cos(r) * short.MaxValue;
HeightFieldSample sample = new HeightFieldSample()
{
Height = (short)h,
MaterialIndex0 = 0,
MaterialIndex1 = 1,
TessellationFlag = 0
};
samples[r * columns + c] = sample;
}
}
HeightFieldDescription heightFieldDesc = new HeightFieldDescription()
{
NumberOfRows = rows,
NumberOfColumns = columns
};
heightFieldDesc.SetSamples(samples);
using (CreateCoreAndScene())
{
HeightField heightField = this.Core.CreateHeightField(heightFieldDesc);
//
HeightFieldShapeDescription heightFieldShapeDesc = new HeightFieldShapeDescription()
{
HeightField = heightField,
HoleMaterial = 2,
// The max height of our samples is short.MaxValue and we want it to be 1
HeightScale = 1.0f / (float)short.MaxValue,
RowScale = 3,
ColumnScale = 3
};
heightFieldShapeDesc.LocalPosition = new Vector3(-0.5f * rows * 1 * heightFieldShapeDesc.RowScale, 0, -0.5f * columns * 1 * heightFieldShapeDesc.ColumnScale);
ActorDescription actorDesc = new ActorDescription()
{
GlobalPose = Matrix.Translation(100, 0, 0),
Shapes = { heightFieldShapeDesc }
};
Actor actor = this.Scene.CreateActor(actorDesc);
}
}
public void Cleanup()
{
_heightField.Dispose();
_heightField = null;
_physics.Dispose();
_physics = null;
}
public void Cleanup()
{
_heightField.Dispose();
_heightField = null;
_physics.Dispose();
_physics = null;
}
public ContentPipelineHeightFieldSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
// Add basic force effects.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Load height field model and add it to the graphics scene.
_heightFieldModelNode = ContentManager.Load <ModelNode>("HeightField/TerrainHeights").Clone();
GraphicsScreen.Scene.Children.Add(_heightFieldModelNode);
// The UserData contains the collision shape of type HeightField.
HeightField heightField = (HeightField)_heightFieldModelNode.UserData;
_heightFieldModelNode.PoseWorld = new Pose(new Vector3F(-heightField.WidthX / 2, 0, -heightField.WidthZ / 2));
// Create rigid body.
_heightFieldBody = new RigidBody(heightField, null, null)
{
MotionType = MotionType.Static,
Pose = _heightFieldModelNode.PoseWorld,
// The PhysicsSample class should not draw the height field.
UserData = "NoDraw",
};
Simulation.RigidBodies.Add(_heightFieldBody);
// Distribute a few spheres and boxes across the landscape.
SphereShape sphereShape = new SphereShape(0.5f);
for (int i = 0; i < 30; i++)
{
Vector3F position = RandomHelper.Random.NextVector3F(-30, 30);
position.Y = 20;
RigidBody body = new RigidBody(sphereShape)
{
Pose = new Pose(position)
};
Simulation.RigidBodies.Add(body);
}
BoxShape boxShape = new BoxShape(1, 1, 1);
for (int i = 0; i < 30; i++)
{
Vector3F position = RandomHelper.Random.NextVector3F(-30, 30);
position.Y = 20;
RigidBody body = new RigidBody(boxShape)
{
Pose = new Pose(position)
};
Simulation.RigidBodies.Add(body);
}
}
/// <summary>
/// If no "Node" instance, this method tries to create one
/// given the Collide.Shape component in this game object.
/// </summary>
/// <returns>True if the node was created - otherwise false.</returns>
private bool TryInitialize(Shape shape, DebugRenderManager manager)
{
if (Node != null)
{
return(false);
}
Collide.Mesh mesh = shape as Collide.Mesh;
HeightField heightField = shape as HeightField;
Cone cone = shape as Cone;
HollowCone hollowCone = shape as HollowCone;
HollowCylinder hollowCylinder = shape as HollowCylinder;
if (mesh != null)
{
Node = InitializeMesh(mesh);
}
else if (heightField != null)
{
Node = InitializeHeightField(heightField);
}
else if (hollowCone != null)
{
Node = new GameObject(PrefabName);
Node.AddComponent <MeshRenderer>().sharedMaterial = manager.ShapeRenderMaterial;
Node.AddComponent <MeshFilter>().sharedMesh = ShapeVisualHollowCone.GenerateMesh(shape);
}
else if (hollowCylinder != null)
{
Node = new GameObject(PrefabName);
Node.AddComponent <MeshRenderer>().sharedMaterial = manager.ShapeRenderMaterial;
Node.AddComponent <MeshFilter>().sharedMesh = ShapeVisualHollowCylinder.GenerateMesh(shape);
}
else if (cone != null)
{
Node = new GameObject(PrefabName);
Node.AddComponent <MeshRenderer>().sharedMaterial = manager.ShapeRenderMaterial;
Node.AddComponent <MeshFilter>().sharedMesh = ShapeVisualCone.GenerateMesh(shape);
}
else
{
Node = PrefabLoader.Instantiate <GameObject>(PrefabName);
Node.transform.localScale = GetShape().GetScale();
}
if (Node != null)
{
var renderers = Node.GetComponentsInChildren <Renderer>();
foreach (var renderer in renderers)
{
renderer.sharedMaterial = manager.ShapeRenderMaterial;
}
}
return(Node != null);
}
public override DRModelNodeContent Process(Texture2DContent input, ContentProcessorContext context)
{
HeightField heightField = CreateHeightFieldFromTexture(input);
DRModelNodeContent model = CreateModel(input, context, heightField);
// The content processor returns a ModelNode. The HeightField shape is stored
// in ModelNode.UserData.
model.UserData = heightField;
return(model);
}
public void TrySimpleHeightfield1x1WithPerpendicularRay()
{
FloatMapImage data = new FloatMapImage(1, 1, PixelFormat.Greyscale);
data.Image[0, 0, 0] = 0.5f;
HeightField heightfield = new HeightField(new[] { data });
Vector3 start = new Vector3(0.1f, 0.1f, 0.25f);
Vector3 end = new Vector3(0.1f, 0.1f, 0.75f);
IntersectAndReport(heightfield, start, end);
}
public UpdateObjMesh(GameObject floatObject, GameObject sea)
{
objTrans = floatObject.GetComponent <Transform> ();
objRB = floatObject.GetComponent <Rigidbody> ();
heightField = sea.GetComponent <HeightField> ();
Mesh mesh = floatObject.GetComponent <MeshFilter> ().mesh;
verArr = mesh.vertices;
triArr = mesh.triangles;
verCount = mesh.vertexCount;
verArrGlobal = new Vector3[verCount];
verHeight = new float[verCount];
isSubmerged = false;
}
public DebugRendererSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
var delegateGraphicsScreen = new DelegateGraphicsScreen(GraphicsService)
{
RenderCallback = Render,
};
GraphicsService.Screens.Insert(0, delegateGraphicsScreen);
// Add a custom game object which controls the camera.
_cameraObject = new CameraObject(Services);
GameObjectService.Objects.Add(_cameraObject);
// Load a sprite font.
var spriteFont = UIContentManager.Load <SpriteFont>("UI Themes/BlendBlue/Default");
// Create a new debug renderer.
_debugRenderer = new DebugRenderer(GraphicsService, spriteFont)
{
DefaultColor = Color.White,
};
// A normal XNA model.
_xnaModel = ContentManager.Load <Model>("Saucer3/saucer");
// A DigitalRune model.
_modelNode = ContentManager.Load <ModelNode>("Dude/Dude").Clone();
_modelNode.PoseLocal = new Pose(new Vector3F(6, 0, -7));
// Create a geometric object with a height field shape.
var numberOfSamplesX = 20;
var numberOfSamplesZ = 20;
var samples = new float[numberOfSamplesX * numberOfSamplesZ];
for (int z = 0; z < numberOfSamplesZ; z++)
{
for (int x = 0; x < numberOfSamplesX; x++)
{
samples[z * numberOfSamplesX + x] = 1.0f + (float)(Math.Cos(z / 2f) * Math.Sin(x / 2f) * 1.0f);
}
}
HeightField heightField = new HeightField(0, 0, 120, 120, samples, numberOfSamplesX, numberOfSamplesZ);
_geometricObject = new GeometricObject(heightField, new Pose(new Vector3F(5, 0, -5)))
{
Scale = new Vector3F(0.01f, 0.05f, 0.02f),
};
}
public void MultipleInstancesAreValid()
{
using (var physics = CreatePhysicsAndScene())
{
// A
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
var cooking = physics.Physics.CreateCooking();
var stream = new MemoryStream();
bool cookResult = cooking.CookHeightField(heightFieldDesc, stream);
stream.Position = 0;
HeightField heightField = physics.Physics.CreateHeightField(stream);
}
// B
{
const int rows = 25, columns = 25;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples
};
var cooking = physics.Physics.CreateCooking();
var stream = new MemoryStream();
bool cookResult = cooking.CookHeightField(heightFieldDesc, stream);
stream.Position = 0;
HeightField heightField = physics.Physics.CreateHeightField(stream);
}
}
}
// Modify the terrain height values to add the road to the terrain.
private void ClampTerrainToRoad()
{
// We have to manipulate the height and normal texture of each tile which contains the road.
foreach (var tile in _terrainObject.TerrainNode.Terrain.Tiles)
{
// Get the current height texture of the tile and extract the heights into a float array.
var heightTexture = tile.HeightTexture;
float[] heights = TerrainHelper.GetTextureLevelSingle(heightTexture, 0);
// Create a temporary height field.
var heightField = new HeightField(
tile.OriginX,
tile.OriginZ,
tile.WidthX,
tile.WidthZ,
heights,
heightTexture.Width,
heightTexture.Height);
// Change the height values of the height field.
TerrainRoadLayer.ClampTerrainToRoad(heightField, _roadPath, 8, 30, 10, 0.1f);
// Rebuild the height texture.
TerrainHelper.CreateHeightTexture(
GraphicsService.GraphicsDevice,
heights,
heightTexture.Width,
heightTexture.Height,
false,
ref heightTexture);
// Rebuild the normal texture.
var normalTexture = tile.NormalTexture;
TerrainHelper.CreateNormalTexture(
GraphicsService.GraphicsDevice,
heights,
heightTexture.Width,
heightTexture.Height,
tile.CellSize,
false,
ref normalTexture);
// Get rigid body that represents this tile.
var rigidBody = Simulation.RigidBodies.First(body => body.UserData == tile);
// Update the height values of the collision detection height field.
((HeightField)rigidBody.Shape).SetSamples(heights, heightTexture.Width, heightTexture.Height);
}
}
private void addLayerToolStripMenuItem_Click(object sender, EventArgs e)
{
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
foreach (var fileName in openFileDialog.FileNames)
{
Bitmap newLayerBitmap = (Bitmap)Bitmap.FromFile(fileName);
layerBitmaps.Add(newLayerBitmap);
layers.Add(newLayerBitmap.ToFloatMap());
}
heightField = new HeightField(layers.ToArray());
selectedIntersector.HeightField = heightField;
UpdateHeightfieldPanel();
}
}
public void TrySimpleHeightfield2x2()
{
FloatMapImage data = new FloatMapImage(2, 2, PixelFormat.Greyscale);
data.Image[0, 0, 0] = 0.5f;
data.Image[0, 1, 0] = 0.5f;
data.Image[1, 0, 0] = 0.5f;
data.Image[1, 1, 0] = 0.5f;
HeightField heightfield = new HeightField(new[] { data });
Vector3 start = new Vector3(0.5f, 1.5f, 0.0f);
Vector3 end = new Vector3(2, 2, 1);
IntersectAndReport(heightfield, start, end);
}
public void HeightFieldWithHoles()
{
float[,] array = new float[2, 3];
array[0, 0] = float.NaN;
array[0, 1] = 1;
array[0, 2] = float.NaN;
array[1, 0] = float.NaN;
array[1, 1] = 4;
array[1, 2] = float.NaN;
HeightField heightField = new HeightField(0, 0, 10, 20, _samples, 3, 8);
// Check if returned values do not contain NaN.
Assert.IsTrue(Numeric.IsFinite(heightField.InnerPoint.Y));
Assert.IsTrue(Numeric.IsFinite(heightField.GetAabb(Pose.Identity).Extent.Length));
}
public void Clone()
{
float[] array = new float[6] { 0, 1, 2, 3, 4, 5, };
HeightField heightField = new HeightField(100, 200, 1.23f, 45.6f, array, 2, 3);
HeightField clone = heightField.Clone() as HeightField;
Assert.IsNotNull(clone);
Assert.AreNotSame(heightField.Samples, clone.Samples);
Assert.AreEqual(heightField.OriginX, clone.OriginX);
Assert.AreEqual(heightField.OriginZ, clone.OriginZ);
Assert.AreEqual(heightField.WidthX, clone.WidthX);
Assert.AreEqual(heightField.WidthZ, clone.WidthZ);
Assert.AreEqual(heightField.Depth, clone.Depth);
Assert.AreEqual(heightField.NumberOfSamplesX, clone.NumberOfSamplesX);
Assert.AreEqual(heightField.NumberOfSamplesZ, clone.NumberOfSamplesZ);
Assert.AreEqual(heightField.GetAabb(Pose.Identity).Minimum, clone.GetAabb(Pose.Identity).Minimum);
Assert.AreEqual(heightField.GetAabb(Pose.Identity).Maximum, clone.GetAabb(Pose.Identity).Maximum);
}
public void SetupHeightField()
{
_physics = CreatePhysicsAndScene();
const int rows = 25, columns = 40;
var samples = HeightFieldTestUtil.CreateSampleGrid(rows, columns);
var heightFieldDesc = new HeightFieldDesc()
{
NumberOfRows = rows,
NumberOfColumns = columns,
Samples = samples,
Thickness = 4.2f,
ConvexEdgeThreshold = 6.6f,
Flags = HeightFieldFlag.NoBoundaryEdges
};
_heightField = _physics.Physics.CreateHeightField(heightFieldDesc);
Assert.IsNotNull(_heightField);
Assert.IsFalse(_heightField.Disposed);
}
public void Setup()
{
_samples = new float [] { 0, 1, 2,
3, 4, 2,
1, 0, 1,
2, 2, 2,
5, 3, 2,
1, 2, 1,
2, 0, 3,
-1, 0, 2 };
_field = new HeightField
{
OriginX = 1000,
OriginZ = 2000,
WidthX = 100,
WidthZ = 200,
};
_field.SetSamples(_samples, 3, 8);
}
public void HeightFieldWithHoles()
{
float[,] array = new float[2, 3];
array[0, 0] = float.NaN;
array[0, 1] = 1;
array[0, 2] = float.NaN;
array[1, 0] = float.NaN;
array[1, 1] = 4;
array[1, 2] = float.NaN;
HeightField heightField = new HeightField(0, 0, 10, 20, _samples, 3, 8);
// Check if returned values do not contain NaN.
Assert.IsTrue(Numeric.IsFinite(heightField.InnerPoint.Y));
Assert.IsTrue(Numeric.IsFinite(heightField.GetAabb(Pose.Identity).Extent.Length));
}
private Detour.AtavismNavTile BuildTileMesh(int tx, int ty, RecastVertex min, RecastVertex max)
{
Config.Width = Config.TileSize + Config.BorderSize * 2;
Config.Height = Config.TileSize + Config.BorderSize * 2;
Config.MinBounds = min;
Config.MaxBounds = max;
Config.MinBounds.X -= Config.BorderSize * Config.CellSize;
Config.MinBounds.Z -= Config.BorderSize * Config.CellSize;
Config.MaxBounds.X += Config.BorderSize * Config.CellSize;
Config.MaxBounds.Z += Config.BorderSize * Config.CellSize;
HeightField heightfield = new HeightField(Config.Width, Config.Height, Config.MinBounds.ToArray(), Config.MaxBounds.ToArray(), Config.CellSize, Config.CellHeight);
short[] triAreas = new short[Geometry.ChunkyTriMesh.MaxTrisPerChunk];
float[] tbmin = new float[2], tbmax = new float[2];
tbmin[0] = Config.MinBounds.X;
tbmin[1] = Config.MinBounds.Z;
tbmax[0] = Config.MaxBounds.X;
tbmax[1] = Config.MaxBounds.Z;
int[] cid = new int[512];
int ncid = Geometry.ChunkyTriMesh.GetChunksOverlappingRect(tbmin, tbmax, ref cid, 512);
if (ncid == 0)
return null;
for (int i = 0; i < ncid; i++)
{
ChunkyTriMeshNode node = Geometry.ChunkyTriMesh.Nodes[cid[i]];
int[] tris = new int[node.n * 3];
Array.Copy(Geometry.ChunkyTriMesh.Tris, node.i * 3, tris, 0, node.n * 3);
List<int> ctris = new List<int>(tris);
int nctris = node.n;
Array.Clear(triAreas, 0, triAreas.Length);
Geometry.MarkWalkableTriangles(Config.WalkableSlopeAngle, ctris, nctris, ref triAreas);
heightfield.RasterizeTriangles(Geometry, ctris, nctris, triAreas, Config.WalkableClimb);
}
heightfield.FilterLowHangingWalkableObstacles(Config.WalkableClimb);
heightfield.FilterLedgeSpans(Config.WalkableHeight, Config.WalkableClimb);
heightfield.FilterWalkableLowHeightSpans(Config.WalkableHeight);
CompactHeightfield compactHeightfield = new CompactHeightfield(Config.WalkableHeight, Config.WalkableClimb, heightfield);
compactHeightfield.ErodeWalkableArea(Config.WalkableRadius);
// optional convex volumes
compactHeightfield.BuildDistanceField();
compactHeightfield.BuildRegions(Config.BorderSize, Config.MinRegionArea, Config.MergeRegionArea);
ContourSet contourSet = new ContourSet(compactHeightfield, Config.MaxSimplificationError, Config.MaxEdgeLength);
if (contourSet.NConts == 0)
return null;
PolyMesh polyMesh = new PolyMesh(contourSet, Config.MaxVertexesPerPoly);
DetailPolyMesh detailPolyMesh = new DetailPolyMesh(polyMesh, compactHeightfield, Config.DetailSampleDistance,
Config.DetailSampleMaxError);
// Convert the Areas and Flags for path weighting
for (int i = 0; i < polyMesh.NPolys; i++)
{
if (polyMesh.Areas[i] == Geometry.WalkableArea)
{
polyMesh.Areas[i] = 0; // Sample_polyarea_ground
polyMesh.Flags[i] = 1; // Samply_polyflags_walk
}
}
NavMeshCreateParams param = new NavMeshCreateParams
{
Verts = polyMesh.Verts,
VertCount = polyMesh.NVerts,
Polys = polyMesh.Polys,
PolyAreas = polyMesh.Areas,
PolyFlags = polyMesh.Flags,
PolyCount = polyMesh.NPolys,
Nvp = polyMesh.Nvp,
DetailMeshes = detailPolyMesh.Meshes,
DetailVerts = detailPolyMesh.Verts,
DetailVertsCount = detailPolyMesh.NVerts,
DetailTris = detailPolyMesh.Tris,
DetailTriCount = detailPolyMesh.NTris,
// Off Mesh data
OffMeshConVerts = Geometry.OffMeshConnectionVerts.ToArray(),
OffMeshConRad = Geometry.OffMeshConnectionRadii.ToArray(),
OffMeshConDir = Geometry.OffMeshConnectionDirections.ToArray(),
OffMeshConAreas = Geometry.OffMeshConnectionAreas.ToArray(),
OffMeshConFlags = Geometry.OffMeshConnectionFlags.ToArray(),
OffMeshConUserId = Geometry.OffMeshConnectionIds.ToArray(),
OffMeshConCount = (int)Geometry.OffMeshConnectionCount,
// end off mesh data
WalkableHeight = Config.WalkableHeight,
WalkableRadius = Config.WalkableRadius,
WalkableClimb = Config.WalkableClimb,
BMin = new float[] { polyMesh.BMin[0], polyMesh.BMin[1], polyMesh.BMin[2] },
BMax = new float[] { polyMesh.BMax[0], polyMesh.BMax[1], polyMesh.BMax[2] },
Cs = polyMesh.Cs,
Ch = polyMesh.Ch,
BuildBvTree = true,
TileX = tx,
TileY = ty,
TileLayer = 0
};
return new Detour.AtavismNavTile(param);
}
