Rain with NxOgre

Hi,

I would love to do rain with nxogre but I really don't know what to put exactly in each property once I don't have a parameter.
Its this format right now:

NxOgre::FluidDescription desc;
desc.mMaxParticles = 60000;
desc.mKernelRadiusMultiplier = 1.0f;
desc.mRestParticlesPerMetre = 0.2;
desc.mMotionLimitMultiplier = 1.0f;
desc.mPacketSizeMultiplier = 8;
desc.mCollisionDistanceMultiplier = 0.1f;
desc.mStiffness = 1;
desc.mViscosity = 6;
desc.mRestDensity = 0.01f;
desc.mDamping = 0.0f;
desc.mFadeInTime = 0.0f;
desc.mRestitutionForStaticShapes = 0.0f;
desc.mRestitutionForDynamicShapes = 0.0f;
desc.mDynamicFrictionForStaticShapes = 0.9f;
desc.mDynamicFrictionForDynamicShapes = 0.9f;
desc.mCollisionResponseCoefficient = 3.0f;
desc.mStaticFrictionForDynamicShapes = 0.9f;
desc.mStaticFrictionForStaticShapes = 0.9f;
desc.mSurfaceTension = 0.3f;
desc.mSimulationMethod = NxOgre::Enums::FluidSimulationMethod_SPH;
desc.mCollisionMethod |= NxOgre::Enums::FluidCollisionMethod_Dynamic;
desc.mCollisionMethod |= NxOgre::Enums::FluidCollisionMethod_Static;
desc.mFlags |= NxOgre::Enums::Fluid:FluidFlags_CollisionTwoWay;
desc.mFlags |= NxOgre::Enums::FluidFlags_Enabled;
desc.mFlags |= NxOgre::Enums::FluidFlags_Hardware;

// with Ogre Particle System
NxOgre::Fluid* mFluid = mRenderSystem->createFluid(desc,"Watermine", Critter::Enums::FluidType_OgreParticle);
Critter::ParticleRenderable* pr = (Critter::ParticleRenderable*)mFluid->getRenderable();
pr->getParticleSystem()->setDefaultDimensions(0.6,2.5);

NxOgre::FluidEmitterDescription edesc;
edesc.mPose.set(953, 450, 2246);
edesc.mPose.set((NxOgre::Quat)Ogre::Quaternion(Degree(90),Ogre::Vector3::UNIT_X));
edesc.mShape = NxOgre::Enums::FluidEmitterShape_Ellipse;
edesc.mParticleLifetime = 25;
edesc.mRate = 2000;
edesc.mFluidSpeed = 100.0f;
edesc.mType = NxOgre::Enums::FluidEmitterType_FlowRate;
edesc.mReplusionCoefficient = 0.0f;
edesc.mDimensionX = 450.00f;
edesc.mDimensionY = 450.00f;

NxOgre::FluidEmitter* mEmitter = mFluid->createEmitter(edesc);


I already change all the variables hundred's times...
But I'm with 3 problems:
1 - I can't do the rain fall more intense.
2 - When particles collide with another, they jump tooooo long.
3 - Later +-25 seconds, appears stacked particles in the air !?

Could someone give an idea...? please

EDIT: 1 - Solved; 2 - Particially solved (but I still don't know exactly why, just changing properties); 3 - The stacked particles in the air don't have influence of gravity, neither any force/weight (as I saw with showall debugger' function), just appear suddenly.

Anyone please?

*I also would love a form to detect collision of particles with the floor/or any other object and change its dimensions/material in this moment...

I really don't think PhysX can do rain.

It's probably easier just to use the Ogre Particle system.

Tks for reply.

But about Ogre Particle System, I probably can't do puddles with it (and this is my objective)...

It's probably better then just create the water at the ground, and mimic the rain using a Ogre based particle system.

Do you mean puddles as in the splashing effect you get? Or actual puddles of water?

It don't need have the splashing effect, would be good but it isn't essencial...

May you specify better when you say "create the water at the ground"?

I meant putting emitters along the ground to create the particles, which would clump together to create the puddles.

Understood, thanks...

Another thing, could you say how to do spherical particles instead of rectangular ones?
I think the effect is better in this form...