06 Create Arrays using Pattern in Unreal Engine 5 6 Modeling

Session 6 Summary – Pattern Tool and Harvest Instances in UE5.6

• Introduction to Pattern Tool

  • Similar to array tools in 3ds Max and Maya.

  • Used for duplicating static mesh instances in linear, grid, and circular arrangements.

• Linear Pattern Mode

  • Options include:

    • By Count: Distribute a fixed number of instances over a set length.

    • By Step Size: Define spacing between each instance.

    • Packed: Places instances adjacent to each other with no gaps.

• Use Case Examples

  • Creating fences around a ground by reusing arrow meshes.

  • Arranging chairs in grids (for audience seating) and circles (for events).

  • Building steps/stairs using translation values in Z-axis.

  • Creating spiral steps using circular patterns and incremental Z-translation.

• Advanced Pattern Customizations

  • Rotation: Start and end rotations can bend or curve patterns.

  • Scale: Gradually scale instances from start to end (e.g., tower of varying height blocks).

  • Split & Merge: Split merged meshes back into parts or re-merge for cleaner structure.

• ISM and Harvest Instances

  • Harvest Instances: Optimizes performance by converting repeated meshes into instanced static meshes.

  • Two types:

    • ISM (Instanced Static Mesh) – For static geometry.

    • HISM (Hierarchical ISM) – Supports animation/hierarchical structures.

  • ISM Editor: Allows modifying individual instances (move, scale, etc.) after harvesting.

• Performance Note

  • Using instancing is crucial for large repeated objects (e.g., chairs) to maintain scene efficiency.

• Next Module

  • The following session will cover the Deform Menu in the Modeling Tools.