public void PrepareForDraw(ref VRageRender.MyBillboard effectBillboard)
{
m_billboards.Clear();
if (m_particles.Count == 0)
{
return;
}
if (UseLayerSorting && effectBillboard == null)
{
effectBillboard = MyTransparentGeometry.AddBillboardEffect(m_effect);
if (effectBillboard != null)
{
m_billboards.Add(effectBillboard);
}
}
using (ParticlesLock.AcquireSharedUsing())
{
foreach (MyAnimatedParticle particle in m_particles)
{
MyTransparentGeometry.StartParticleProfilingBlock("m_preallocatedBillboards.Allocate()");
VRageRender.MyBillboard billboard = MyTransparentGeometry.AddBillboardParticle(particle, effectBillboard, !UseLayerSorting);
if (billboard != null)
{
if (!UseLayerSorting)
{
billboard.Position0.AssertIsValid();
billboard.Position1.AssertIsValid();
billboard.Position2.AssertIsValid();
billboard.Position3.AssertIsValid();
m_billboards.Add(billboard);
}
}
MyTransparentGeometry.EndParticleProfilingBlock();
if (billboard == null)
{
break;
}
}
}
}