private void CreateBoundary(float radius, float density)
{
Bounds innerBounds = new Bounds();
Vector3 min = new Vector3(-8, 0, -2);
Vector3 max = new Vector3(8, 10, 2);
innerBounds.SetMinMax(min, max);
//Make the boundary 1 particle thick.
//The multiple by 1.2 adds a little of extra
//thickness in case the radius does not evenly
//divide into the bounds size. You might have
//particles missing from one side of the source
//bounds other wise.
float thickness = 1;
float diameter = radius * 2;
min.x -= diameter * thickness * 1.2f;
min.y -= diameter * thickness * 1.2f;
min.z -= diameter * thickness * 1.2f;
max.x += diameter * thickness * 1.2f;
max.y += diameter * thickness * 1.2f;
max.z += diameter * thickness * 1.2f;
Bounds outerBounds = new Bounds();
outerBounds.SetMinMax(min, max);
//The source will create a array of particles
//evenly spaced between the inner and outer bounds.
ParticleSource source = new ParticlesFromBounds(diameter, outerBounds, innerBounds);
Debug.Log("Boundary Particles = " + source.NumParticles);
m_boundary = new FluidBoundary(source, radius, density, Matrix4x4.identity);
m_innerSource = innerBounds;
m_outerSource = outerBounds;
}
public FluidSolver(FluidBody body, FluidBoundary boundary)
{
SolverIterations = 2;
ConstraintIterations = 2;
Body = body;
Boundary = boundary;
float cellSize = Body.ParticleRadius * 4.0f;
int total = Body.NumParticles + Boundary.NumParticles;
Hash = new GridHash(Boundary.Bounds, total, cellSize);
Kernel = new SmoothingKernel(cellSize);
int numParticles = Body.NumParticles;
Groups = numParticles / THREAD_1D;
if (numParticles % THREAD_1D != 0)
{
Groups++;
}
m_shader = Resources.Load("FluidSolver") as ComputeShader;
}
