private void LateUpdate()
{
if (system == null)
{
system = GetComponent <ParticleSystem>();
system.simulationSpace = ParticleSystemSimulationSpace.World;
}
if (particles == null || particles.Length < system.maxParticles)
{
particles = new ParticleSystem.Particle[system.maxParticles];
}
int particleCount = system.GetParticles(particles);
if (!m_NoCurl)
{
Bounds b = system.GetComponent <ParticleSystemRenderer>().bounds;
if (b.Intersects(m_CurlVolume.GetComponent <Renderer>().bounds))
{
NoisePluginWrapper.UpdateCurlSettings(false, frequency, octaves, lacunarity, persistence);
UpdateParticleVelocity();
system.SetParticles(particles, particleCount);
}
}
}
private void UpdateParticleVelocity()
{
Int32 numColliders = m_Spheres.Length;
IntPtr ptr = pColliders;
foreach (Transform t in m_Spheres)
{
Volume obstacle = new Volume();
obstacle.mShape = Volume.eShape.kSphere;
obstacle.mExtent = t.lossyScale * 0.5f;
obstacle.mWorldToObject = Matrix4x4.TRS(t.position, t.rotation, Vector3.one);
Marshal.StructureToPtr(obstacle, ptr, false);
//Debug.Log("Marshal.SizeOf(typeof(Volume) = " + Marshal.SizeOf(typeof(Volume)));
ptr = (IntPtr)((int)ptr + Marshal.SizeOf(typeof(Volume)));
}
for (int i = 0; i < particles.Length; i++)
{
Vector3 ppos = particles[i].position;
Vector3 p_to_c = ppos - m_CurlVolume.transform.position;
float r = m_CurlVolume.transform.lossyScale.x * 0.5f;
if (p_to_c.sqrMagnitude < r * r)
{
Vector3 v = new Vector3();
if (m_CurlWithoutBoundaries)
{
Profiler.BeginSample("CC-NoBoundaries");
Vector3 curl = NoisePluginWrapper.ComputeCurlA(ppos);
v = strength * curl;
Profiler.EndSample();
}
else
{
Profiler.BeginSample("CC-YesBoundaries");
if (m_BruteForce)
{
Vector3 curl = NoisePluginWrapper.ComputeCurlB(ppos, pColliders, numColliders);
v = strength * curl;
}
else
{
Vector3 curl = NoisePluginWrapper.ComputeCurlC(ppos, pColliders, numColliders);
v = strength * curl;
//particles[i].velocity = new Vector3(0f, 0.5f, 0f);
}
Profiler.EndSample();
}
particles[i].velocity = new Vector3(0f, 0.04f, 0f) + v;
}
}
}
