void Start()
{
Matrix4x4d T, R;
double spacing = 0.125;
double radius = spacing;
double mass = 1.0;
System.Random rnd = new System.Random(0);
Vector3 min = new Vector3(-1, -1, -1);
Vector3 max = new Vector3(1, 1, 1);
Box3d bounds = new Box3d(min, max);
ParticlesFromBounds source = new ParticlesFromBounds(spacing, bounds);
T = Matrix4x4d.Translate(new Vector3d(0.0, 4.0, 0.0));
R = Matrix4x4d.Rotate(new Vector3d(0.0, 0.0, 25.0));
RidgidBody3d body = new RidgidBody3d(source, radius, mass, T * R);
body.Dampning = 1.0;
body.RandomizePositions(rnd, radius * 0.01);
Solver = new Solver3d();
Solver.AddBody(body);
Solver.AddForce(new GravitationalForce3d());
Solver.AddCollision(new PlanarCollision3d(Vector3.up, 0));
Solver.SolverIterations = 2;
Solver.CollisionIterations = 2;
Solver.SleepThreshold = 1;
CreateSpheres();
}
public void CreateFluid(double radius, double density)
{
//To make less particles decrease the size of the bounds or increase the radius.
//Make sure fluid bounds fits inside the boundrys bounds.
FluidBounds = new Box3d(-8, -4, 0, 8, -2, 2);
ParticlesFromBounds source = new ParticlesFromBounds(radius, FluidBounds);
System.Random rnd = new System.Random(0);
Body = new FluidBody3d(source, radius, density, Matrix4x4d.Identity);
Body.Dampning = 0.0;
Body.AddBoundry(Boundary);
Body.RandomizePositions(rnd, radius * 0.01);
Body.RandomizePositionOrder(rnd);
FluidSpheres = new GameObject[Body.NumParticles];
float diam = (float)Body.ParticleDiameter;
for (int i = 0; i < FluidSpheres.Length; i++)
{
Vector3d pos = Body.Positions[i];
GameObject sphere = GameObject.CreatePrimitive(PrimitiveType.Sphere);
sphere.transform.parent = transform;
sphere.transform.position = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
sphere.transform.localScale = new Vector3(diam, diam, diam);
sphere.GetComponent <Collider>().enabled = false;
sphere.GetComponent <MeshRenderer>().material = sphereMaterial;
FluidSpheres[i] = sphere;
}
}
public void CreateBoundary(double radius, double density)
{
InnerBounds = new Box3d(-8, 8, 0, 10, -2, 2);
OuterBounds = InnerBounds;
int thickness = 1;
OuterBounds.Min -= new Vector3d(radius * 2 * thickness);
OuterBounds.Max += new Vector3d(radius * 2 * thickness);
ParticleSource source = new ParticlesFromBounds(radius, OuterBounds, InnerBounds);
Boundary = new FluidBoundary3d(source, radius, density, Matrix4x4d.Identity);
BoundarySpheres = new GameObject[Boundary.NumParticles];
float diam = (float)Boundary.ParticleDiameter;
for (int i = 0; i < BoundarySpheres.Length; i++)
{
Vector3d pos = Boundary.Positions[i];
GameObject sphere = GameObject.CreatePrimitive(PrimitiveType.Sphere);
sphere.SetActive(drawBoundary);
sphere.transform.parent = transform;
sphere.transform.position = new Vector3((float)pos.x, (float)pos.y, (float)pos.z);
sphere.transform.localScale = new Vector3(diam, diam, diam);
sphere.GetComponent <Collider>().enabled = false;
sphere.GetComponent <MeshRenderer>().material = boundaryMaterial;
BoundarySpheres[i] = sphere;
}
}
public void CreateBoundary(float radius, float density)
{
InnerBounds = new Box3f(-8, 4, 0, 10, -2, 4);
//new Box3f(-8, 8, 0, 10, -2, 4);
OuterBounds = InnerBounds;
float thickness = 1.2f;
OuterBounds.Min -= new Vector3f(radius * 2 * thickness);
OuterBounds.Max += new Vector3f(radius * 2 * thickness);
ParticleSource source = new ParticlesFromBounds(radius, OuterBounds, InnerBounds);
Boundary = new FluidBoundary3d(source, radius, density, Matrix4x4f.Identity);
CreateBoundaryVisualize();
}