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Creating the Prefab

Learning to create the car and wheel prefabs and link the windows, wheels, and main model.

WARNING: To modify prefabs, open the Resource Browser, locate your prefab, double-click on it, and click Edit Prefab. From this point, you can modify your vehicle prefab or anything else (press Ctrl + S to save).

To create a prefab, follow this tutorial.

Step 1 - Creating the Prefabs:

  • Create the Wheel Prefab
  • Create the Main Model Prefab

Creating the Wheel Prefab:

  1. In the Resource Browser, search for "VehicleWheel_base," right-click, and select Inherit in '...'. Rename it to "yourvehicle_Wheel."
    image.png
  2. Go to your addon, navigate to Prefab/core, open the file you just created, and on the right, click on Edit Prefab.
    image.png
  3. Once the Prefab Editor is open, search for "MeshObject" in the right-hand search bar.
    image.png
  4. Under the Object option, locate the .xob file for your wheel and click OK to confirm.
    image.png
  5. In the Resource Browser, go to your addon, then prefabs/vehicle/wheeled/youraddonname/Vehparts. Drag the prefab from the left column of the Resource Browser and name the wheel as mentioned above.
  6. Press Ctrl + S, close the World Editor, and proceed.

Creating the Main Model:

  1. In the search bar, look for "wheeled car base," (take the base accordding to the vehiucle you are palnned to do) right-click, and select Inherit in '...'
    image.png
  2. Rename it with the name of your vehicle, without spaces.
  3. Clear the current search, select what you just created, open it, and click Edit Prefab.
  4. Search for "MeshObject" in the right search bar, and in the Object field, select the .xob file for your main model.
    image.png
  5. Click OK.

If everything has gone correctly, your 3D model should appear. Save with Ctrl + S and move to the next step.

Step 2 - Attaching the Wheels to the Main 3D Model:

  1. In the right-hand search bar, search for "SlotManager."
    image.png
  2. In the SlotManager component, this is where you will attach your wheels and windows.

For the Wheels:

  1. Click the plus sign and select "SCR_WheelSlotInfo."
    image.png

Follow a naming pattern for the wheels:

  • "Wheel_L01"
    • Wheel for the wheel.
    • L for left (Left = L, Right = R).
    • 01 for the front left wheel (top = 01, bottom = 02).

Important Vocabulary:

  • Pivot ID: Corresponds to the bone name, setting the wheel’s default position.
  • Offset: Allows manual adjustment of the wheel’s position.
  • Angle: Modifies the wheel’s angle, useful for positioning wheels on the opposite side with a 180° rotation.
  • Wheel Index: A code used to identify each wheel.

Starting with the front left wheel, Wheel_L01:

  1. After creating the slot, activate the Disable Physics Interaction and Register Damage settings. In the prefab box, select the wheel prefab. (to be confirmed)
    image.png
  2. For the right side, apply a Z-axis rotation of 180° to position it correctly. This will look like:
    image.png

Wheel Index Codes:

  • Front Left: 0
  • Front Right: 1
  • Rear Left: 2
  • Rear Right: 3

Once your wheels are in place, save, and move to the next step.


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