Modifying Water Material for Buoyancy in Unreal Engine

The buoyancy boat project successfully modifies water materials for submerged boats while ensuring visibility and functionality.

### Modifying Water Material for a Submerged Boat
The tutorial focuses on **removing water from a submerged boat** by modifying the water material. The process involves **copying the water material**, renaming it, and replacing the function with the one that has **"mask" at the end**. The tutorial also suggests adding a **solid mesh over the boat mesh** to fake its solidity.

### Modifying a Boat Model in Blender
The process involves **exporting the boat model from Unreal**, modifying it in Blender, and then **importing it back**. In Blender, the **inner vertices are deleted** to create a solid object, and faces are made by **selecting vertices**. After exporting the modified model, it is **imported back into Unreal** to replace the original.

### Hiding Water in a Boat Blueprint
The boat blueprint is modified by adding a static mesh to fill in the boat, effectively **hiding the water**. Setting the mesh to **not visible or hidden in game** does not work, so a new material, **M Water mask**, is created to make it invisible. The material is set to **mask water material**, ensuring it is visible in the game while also allowing for **collision settings**.

### Drivable Boat Video Preparation
The creator is planning a drivable boat video, focusing on **wave size**, **boat speed**, and **boat size** as key considerations. Tipping the boat at the wrong angle can lead to **water spilling in**, which is to be avoided. The water post-process effect occurs when going **low enough**, but the creator believes the setup will work **perfectly in most scenarios**.

### Modifying Buoyancy Boat Water Material in Unreal Engine
* 🚤 In this tutorial, we are focused on **removing water from a submerged buoyancy boat** by modifying the **water material itself** within Unreal Engine.
* 🔍 First, we locate the **water material** and create a copy to avoid altering the original engine content, ensuring we can **customize it safely**.
* 🛠 After opening the material, we replace a specific function with a new one, maintaining the **default settings** while adjusting the **opacity to suit our needs**.
* 💡 Once the water material is updated, we introduce a solid mesh to mask the boat's interior, which is **essential to avoid visual artifacts when submerged**.
* 🌊 We then export the boat model to Blender, modify it to create a **solid object** by deleting inner vertices, and export it back to Unreal Engine.
* 🧩 Back in Unreal, we replace the existing boat mesh with our modified version and create a new material to ensure that the mesh is **invisible while still interacting with the water**.
* 🌊 As we finalize the setup, we discuss considerations for a drivable boat, highlighting the **importance of wave size and boat speed** to **prevent water from spilling into the boat**.
* 👍 Overall, this method effectively allows us to **manage the water interaction with the buoyancy boat**, ensuring a **smoother visual experience** in the game environment.

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Unsink Your Boat - How to Remove Water From Boat in UE5.3

Unsink Your Boat - How to Remove Water From Boat in UE5.3