// 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);
}
public void TestSetGetParticlesVelocities()
{
Vector3 GRAVITY = new Vector3(1, 2, 3);
float DELTA_T = 0.016f;
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.gravity = GRAVITY;
Flex.SetParams(solver, ref prms);
Flex.Buffer particles = CreateBuffer(lib, 1, 4, new float[]
{
0.0f, 0.0f, 0.0f, 1.0f,
});
Flex.SetParticles(solver, particles);
Flex.Buffer velocities = CreateBuffer(lib, 1, 3, new float[]
{
0.0f, 0.0f, 0.0f,
});
Flex.SetVelocities(solver, velocities);
Flex.SetActiveCount(solver, 1);
Flex.Buffer active = CreateBuffer(lib, 1, 1, new int[]
{
0
});
Flex.SetActive(solver, active);
Flex.UpdateSolver(solver, DELTA_T, 1);
Flex.GetVelocities(solver, velocities);
float[] values; ReadBuffer(lib, velocities, 1, 3, out values);
Assert.AreEqual(GRAVITY * DELTA_T, new Vector3(values[0], values[1], values[2]));
Flex.FreeBuffer(particles);
Flex.FreeBuffer(velocities);
Flex.FreeBuffer(active);
Flex.DestroySolver(solver);
Flex.Shutdown(lib);
}
private void PullParticlesFromGPU(IntPtr solverPtr, FlexContainer cnt, Flex.Memory memory)
{
Flex.GetParticles(m_solverPtr, m_cntr.m_particlesHndl.AddrOfPinnedObject(), m_cntr.m_particlesCount, memory);
Flex.GetVelocities(m_solverPtr, m_cntr.m_velocitiesHndl.AddrOfPinnedObject(), m_cntr.m_particlesCount, memory);
Flex.GetPhases(m_solverPtr, m_cntr.m_phasesHndl.AddrOfPinnedObject(), m_cntr.m_particlesCount, memory);
Flex.GetSmoothParticles(m_solverPtr, m_cntr.m_smoothedParticlesHndl.AddrOfPinnedObject(), m_cntr.m_particlesCount, memory);
Flex.GetNormals(m_solverPtr, m_cntr.m_normalsHndl.AddrOfPinnedObject(), m_cntr.m_particlesCount, memory);
Flex.GetDensities(m_solverPtr, m_cntr.m_densitiesHndl.AddrOfPinnedObject(), memory);
Flex.GetBounds(m_solverPtr, ref m_minBounds, ref m_maxBounds, memory);
if (m_cntr.m_shapeCoefficients.Length > 0)
{
Flex.GetRigidTransforms(m_solverPtr, m_cntr.m_shapeRotationHndl.AddrOfPinnedObject(), m_cntr.m_shapeTranslationsHndl.AddrOfPinnedObject(), memory);
}
}