// Update is called once per frame
void Update()
{
// Map buffers for reading / writing.
particles = Flex.Map(_particleBuffer);
velocities = Flex.Map(_velocityBuffer);
phases = Flex.Map(_phaseBuffer);
// Spawn particles.
//spawnParticles(particles, velocities, phases);
// Render particles.
RenderParticles(particles, velocities, phases);
// Unmap buffers.
Flex.Unmap(_particleBuffer);
Flex.Unmap(_velocityBuffer);
Flex.Unmap(_phaseBuffer);
// Write to device (async).
Flex.SetParticles(_solver, _particleBuffer);
Flex.SetVelocities(_solver, _velocityBuffer);
Flex.SetPhases(_solver, _phaseBuffer);
// Tick.
Flex.UpdateSolver(_solver, Time.deltaTime, 1);
// Read back (async).
Flex.GetParticles(_solver, _particleBuffer);
Flex.GetVelocities(_solver, _velocityBuffer);
Flex.GetPhases(_solver, _phaseBuffer);
}
private void PushParticlesToGPU(IntPtr solverPtr, FlexContainer cnt, Flex.Memory memory)
{
Flex.SetActive(solverPtr, cnt.m_activeSetHndl.AddrOfPinnedObject(), cnt.m_activeParticlesCount, memory);
Flex.SetParticles(solverPtr, cnt.m_particlesHndl.AddrOfPinnedObject(), cnt.m_particlesCount, memory);
Flex.SetRestParticles(solverPtr, cnt.m_restParticlesHndl.AddrOfPinnedObject(), cnt.m_particlesCount, memory);
Flex.SetVelocities(solverPtr, cnt.m_velocitiesHndl.AddrOfPinnedObject(), cnt.m_particlesCount, memory);
Flex.SetNormals(solverPtr, cnt.m_normalsHndl.AddrOfPinnedObject(), cnt.m_particlesCount, memory);
Flex.SetPhases(solverPtr, cnt.m_phases, cnt.m_particlesCount, memory);
}
public void TestSetParticlesPhases()
{
float DELTA_T = 0.016f;
float INTERACTION_DISTANCE = 0.5f;
float SOLID_REST_DISTANCE = 0.2f;
Flex.Library lib = Flex.Init(Flex.FLEX_VERSION, ErrorCallback);
Flex.SolverDesc desc = default(Flex.SolverDesc);
Flex.SetSolverDescDefaults(ref desc);
desc.maxParticles = 1000;
desc.maxDiffuseParticles = 1000;
Flex.Solver solver = Flex.CreateSolver(lib, ref desc);
Flex.Params prms = new Flex.Params();
Flex.GetParams(solver, ref prms);
prms.radius = INTERACTION_DISTANCE;
prms.solidRestDistance = SOLID_REST_DISTANCE;
Flex.SetParams(solver, ref prms);
Flex.Buffer particles = CreateBuffer(lib, 2, 4, new float[]
{
-0.001f, 0.0f, 0.0f, 1.0f,
0.001f, 0.0f, 0.0f, 1.0f,
});
Flex.SetParticles(solver, particles);
Flex.Buffer phases = CreateBuffer(lib, 2, 1, new int[]
{
Flex.MakePhase(1, Flex.Phase.SelfCollide),
Flex.MakePhase(1, Flex.Phase.SelfCollide),
});
Flex.SetPhases(solver, phases);
Flex.SetActiveCount(solver, 2);
Flex.Buffer active = CreateBuffer(lib, 2, 1, new int[]
{
0, 1,
});
Flex.SetActive(solver, active);
Flex.UpdateSolver(solver, DELTA_T, 1);
Flex.GetParticles(solver, particles);
float[] values; ReadBuffer(lib, particles, 2, 4, out values);
Assert.AreEqual(SOLID_REST_DISTANCE, Vector3.Distance(new Vector3(values[0], values[1], values[2]), new Vector3(values[4], values[5], values[6])));
Flex.FreeBuffer(particles);
Flex.FreeBuffer(phases);
Flex.FreeBuffer(active);
Flex.DestroySolver(solver);
Flex.Shutdown(lib);
}
