Details are generally referred to visual/non-interactive objects on the terrain, such as rocks, grass, flowers, mushrooms, etc.

When I say noninteractive, I literally mean that there is no way to interact with them: they don't cast shadows or have collision detection.

There are two variations of details according to Unity: Grass and Detail, which are essentially texture and mesh-based objects.

Grass

Let's start by creating a Grass type using texture based details.

1. Click on Edit Details… button.

2. Select Add Grass Texture.

This will open an option window for Grass detail.

• Detail Texture will be used for detail creation. For this example, we will use the Grass1 texture from the Chapter 3 folder.

• Min/Max Width/Height helps to diverse detail patches.

• Noise Spread controls the approximate size of the alternating patches; a higher parameter value will give you more variation...