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Before starting this tutorial, read:
The Texture Brush lets you paint Unity Terrain texture layers directly in the scene view. It gives you manual control over exactly where textures appear, with optional mask filter support and per-stroke strength control.

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Before you begin

You need:
  • A Unity Terrain in your scene with at least one terrain layer already configured in the Terrain Inspector.

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Step 1 — Open the MegaWorld Window and select Texture Brush

Press Alt + Z to open the MegaWorld Window. In the Tools Panel, click the + button and choose Texture Brush, or click an existing Texture Brush instance.

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Step 2 — Add a Group and prototypes

In the Selection Panel, click Add Type. Inside the Group, click Add Resource and choose Unity/Terrain Texture. Assign a terrain texture that matches a layer already registered in the Unity Terrain Inspector.

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Step 3 — Set Target Strength

In the Settings Panel, under Texture Brush Tool Settings, set Target Strength:
  • 1.0 — fully paints the texture in one stroke.
  • 0.1–0.5 — lets you build up the texture gradually over multiple strokes for a softer blend.

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Step 4 — Add Mask Filters (optional)

Add Mask Filters to restrict painting by height or slope. For example, a slope filter ensures a rock texture only appears where the terrain is steep.

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Step 5 — Paint in the scene view

Move your cursor into the Scene View. A brush preview shows the area that will be affected.
  • Click to paint once.
  • Click and drag to paint continuously across the terrain.

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What’s next

  • Use Texture Stamper to fill large areas procedurally with the same texture settings.
  • After painting your base textures, use Grass Brush to add grass detail on top.
  • Read the full Texture Brush reference documentation.