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Object Stamper is a stamper tool for procedural placement of GameObjects and Terrain Objects inside a defined area. You position and scale the stamper in the scene, then MegaWorld evaluates the selected groups and fills that volume with the prototypes that pass your rules. This is one of the best tools when you want to generate a large area of objects at once instead of painting manually.

Spawn large terrain objects in one click

Object Stamper fills the entire stamper area in a single pass. For very large terrains, enable Use Spawn Cells so the area is processed cell by cell instead of all at once. This avoids long freezes and prevents Unity from crashing on extremely large areas. Object Stamper spawn cells area overview. Object Stamper spawn result across large terrain.

Optimized visualization for large terrains

Enable Visualisation in the Stamper Tool Controller to preview mask filter output directly in the scene view. Visualization quality and style can be adjusted globally in Preferences. Object Stamper visualization in the scene view.

Shared settings across tools

Types in MegaWorld are reusable presets. The same Type you configure in Object Stamper can be used directly in Object Brush. Build and tune a preset in the stamper using Auto Respawn, then hand-paint with the same rules in the brush — no duplication needed. MegaWorld Types shared between Object Stamper and Object Brush.

Auto Respawn

When Auto Respawn is on, Object Stamper automatically removes and re-spawns the current pass every time you change a setting. Use this during setup to get instant feedback. Set Delay Auto Spawn to control the respawn delay in seconds. Object Stamper Auto Respawn updating the result live as settings change. Object Stamper Auto Respawn settings in the inspector.

Works on Unity Terrain and terrain mesh

Object Stamper works on both Unity Terrain and polygon terrain meshes such as Polaris. For mesh terrain, switch to Simple Filter instead of Mask Filters. Object Stamper working with Polaris mesh terrain.

Cell support

Placed objects are stored in spatial cells. This enables Overlap Check Settings, and makes tools like Brush Erase and Edit aware of exactly where each object was placed. Object Stamper cell support overview.

Overlap Check Settings visualization

MegaWorld can draw Overlap Check shapes directly in the scene view. To enable the preview, turn on Visualize Overlap Check Settings inside Precise Place. Overlap Check Settings visualization in Object Stamper.