2D Procedural Island Template (Unity 6 / URP RenderGraph)

This project is a Unity 2D template extended for massive RTS-style maps with giant biomes and smooth coast transitions. It targets Unity 6 (6000.x) with URP 17 using RenderGraph.

Highlights

• URP RenderGraph enabled, compatibility mode disabled.
• Cinemachine intro zoom from far → follow player (CM3/CM2 supported).
• Optional 2D Pixel Perfect guidance for crisp 16x16 tiles.
• New biome pipeline:
  • BiomeGenerationStep → world-scale biomes (Ocean, Coast, Desert, Grassland, Forest, Mountain)
  • BiomeToTilesGenerationStep → converts BiomeType → TileType
  • BiomeTransitionsGenerationStep → adds Sand/SandGrass bands for smooth lagoon/grass/sand/sea

Requirements

• Unity 6000.x (Unity 6) or 2022.3 LTS (with packages updated accordingly)
• URP 17.x
• Cinemachine 3.x (or 2.9.x)
• Optional: 2D Pixel Perfect package

RenderGraph settings

Already enabled. If needed:

• Assets/Settings/UniversalRP.asset → RenderGraph enabled
• Assets/UniversalRenderPipelineGlobalSettings.asset → RenderGraph enabled, Compatibility Mode off

Camera setup

• Main Camera: add CinemachineBrain
• Have one CinemachineCamera (CM3) or CinemachineVirtualCamera (CM2) in scene
• Player GameObject has CinemachineCameraHelper:
  • Assign vcam field (or it will auto-find one)
  • Default lens size: 100 → zoom to 6 over 3s (configurable)
  • Force Orthographic enabled (2D)

Pixel art clarity (16x16 tiles)

• Sprite Import: Filter Mode = Point (no filter), Compression = None, Mip Maps = Off, PPU = 16
• Add Pixel Perfect Camera to Main Camera:
  • Assets PPU = 16
  • Reference Resolution = 640x360 (or 320x180/960x540)
  • Upscale Render Texture = On
• URP: MSAA Off, Render Scale = 1.0

Biome generation pipeline

Add these steps to the MapGenerator list in this order:

1. BiomeGenerationStep
2. BiomeToTilesGenerationStep
3. BiomeTransitionsGenerationStep (optional)
4. ShoreLineGenerationStep
5. ShallowSeaGenerationStep
6. HillsGenerationStep
7. GrassGenerationStep
8. TreeGenerationStep
9. EdgeFlatteningGenerationStep / FixMapEdgesStep

Disable BaseIslandMapGenerationStep or turn off its masks so it doesn't overwrite biome tiles.

Noise assets

• For biomes: use large Scale (300–1000), low octaves (2–4)
• Thresholds (suggested): Ocean ~0.35, CoastBand 0.05, Desert <0.30, Forest >0.60

How to run

• Open the project in Unity 6000.x
• Open a scene from Assets/Scenes
• Press Play. Camera starts far away → zooms in → follows player; move with WASD

Notes

• If you see blurry/pixelated tiles when zooming, ensure Point filter + Pixel Perfect Camera config above.
• If Cinemachine compile errors appear, confirm package version (3.x) and the namespace Unity.Cinemachine.

License

See original asset license files inside Assets/ for third-party content.