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This tutorial is focused on the Phoenix liquid simulation.
For the Rigid Body simulation, you can use the 3ds Max built-in MassFX or any other third-party plug-in.

The diameter of the fruits used for this tutorial is about 15 cm, and they fall into the water from a height of ~ 77cm.

Go to Modify Panel → Particle Systems → and create a new PF Source.

The exact Position of the PF Source icon in the scene is [ X: 0cm, Y: 0cm, Z: 77cm ].

Open the Particle View window.

Add a Position, Rotation, Shape Instance and mP Buoyancy operators to Event 002Set the Position Operator to Surface and keep the Rotation and Spin Operators set to default.

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Select the fruit model in the scene as the Shape Instance.

Set the Display Operator to Geometry.

Set mP Shape 001's Collision representation to Convex Hull. 

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Create a Standard Primitive → Plane.

In the mP Buoyancy operator Operator, select the plane Plane geometry in your scene as the Plane Primitive.

This plane works as the water surface for simulating buoyancy. Once you are happy with the motion of the falling fruits, you could hide the plane.

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As no ground collision is required, disable   Ground Collision Plane in the mpWorld operator mp World Operator.

Enable the Apply Gravity option.

The setup consists of one Phoenix Liquid Simulator, PF Source with three fruits, and two lights: one is a V-Ray Dome Light for ambient lighting, and the other is a V-Ray Area Light used to boost the reflections and refractions in the water tank.

A V-Ray Physical camera is used for rendering.

Create a Liquid Simulator that encompasses the animated fruits.

Keep the Boundary conditions Container Walls set to Open.

Set the Scene Scale to 10.

Set the Cell Size such Cell size such that Total Cells is between 500.000 and 2M cells, depending on your machine's performance. Working at a low grid resolution until you've nailed down the general motion of the liquid is a huge time-saver.

The final cell size Cell Size for this example is ~0.12cm.

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Set Go to Simulator → Dynamics rollout and set the Initial Fill Up parameter to 40. This will fill 40% of the container with liquid at the start of the simulation.

Set the Scene Scale to 10 and the Surface Tension Strength to 0.1 (real water has a surface tension of ~0.05 - 0.1).

As the water has to be deep enough for the fruits to dive into and not hit the tank's bottom, and there should be sufficient space for splashes at the top, make sure that the simulator size is adequate.

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Image ModifiedScene Scale: 1

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Scene Scale: 5

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Scene Scale: 10

Set the Steps per Per Frame parameter to 5.

Higher SPF values will result in a smoother liquid at the cost of increased simulation times. In general, you should try to keep this as low as possible without compromising on the quality of your simulation.

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Image ModifiedSPF: 1

Image ModifiedSPF: 3

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SPF: 10

To make the splashes more dramatic, increase the Motion Velocity Effect parameter of every fruit geometry the PF Source to a value of 2.To do so, Select the fruit, Right click -> Phoenix Properties:

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As the name implies, Motion Velocity will ijnect inject velocities based on the movement of your geometry, which in turn will make the interaction between the simulated fluid and your objects more realistic.

This value is a multiplier for the strength of the effect.

Select the PF Source, and right-click on it, and select the Chaos Phoenix Properties.

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Enable Check if the Grid Velocity channel outputChannel is enabled under the "Output" section rollout of the simulatorSimulator.

The grid velocity channel Grid Velocity Channel is required for rendering the liquid with Motion Blur.

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Set the Render Scroll to the Rendering rollout and change the Mode to Cap Mesh.

Set the Ocean Level % parameter to the same value as the Initial Fill Up % parameter (in the Dynamics tab).

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Mesh modeMode

Cap Mesh modeMode

Enable Displacement and pipe a PhoenixFDOceanTex into the Map slot.

A V-Ray HDR light Dome Light is used for ambient lighting.

A V-Ray Area Light placed in the upper left corner of the simulator.A background plane with the diffuse color set to blackSimulator is used to boost the reflections and refractions in the water.

For the Create a V-Ray Physical Camera.

, Enable Depth of Field and set the Bokeh parameters according to your scene requirements. 

Open the Particle View window.

Insert → Operator → Material Static Operator.

Enable Assign Material ID and Show in Viewport.

Select the Cycle option and set the #Sub-Materials to 3.

Set the Per Particle Rate to 0.

Enable Loop.

In the next step we will create a Multi/Sub-Object Material and will assign it to the Material slot of the Material Static Operator. This material will be used for shading the fruits.

For the water, create V-Ray Standard Material and set the Diffuse to black.

Set Reflection and Refraction to white and the IOR to 1.33.

Another way to create water material is to use the Preset option and set it to Water.

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Set the Renderer to V-Ray.

Set the Noise Threshold to 0, and increase the Render Time to a very large value.
This allows V-Ray to render for an indefinite amount of time Image Sampler to Bucket and the Max subdivs. to 4.

You can stop the rendering once you've got a clear image that you're happy withadd VRayDenoiser Render Element for your final render to remove the unwanted noise.

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 The final image can be adjusted in the V-Ray Frame Buffer window with a LUT file. 

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