Hexasphere Grid System

Hexasphere Grid System builds high-performance spherical grids for planet-scale 4X, global strategy and board games on a globe, with hundreds of thousands of interactive tiles.

Powered by texture arrays and geometry shaders, it keeps generation and runtime fast even on huge grids, so your whole planet stays interactive.

*** DESIGN YOUR WORLD ***

• Wireframe, Shaded and combined (shaded + wireframe) styles, with an optional bevel effect.
• Per-tile color and texture.
• Extrusion with customizable height and gradient colors to raise terrain, mountains or stacked regions.
• HeightMap texture support with optional separate water mask; Earth and water-mask textures included.
• Load a texture and map its colors onto tiles around the sphere in a single function call.
• Smart Edges option hides edges between adjacent tiles sharing the same material for a cleaner look.

*** MAKE IT PLAYABLE ***

• Interactive out of the box: highlight tiles with the cursor, drag/rotate and zoom the sphere, fly to any tile.
• Fast, easy path-finding to get the optimal route between any two tiles.
• Group cells to define different surface types for path-finding.
• Easy C# API to change individual tile properties, get neighbours, compute shortest paths and more.

*** SPECIAL MODES ***

• Inverted mode renders the hexasphere inwards with the camera at the center, ideal for dome and skybox-style worlds.
• VR support (multi-pass).
• Export Hexasphere: bake a permanent copy of the sphere into the scene, preserving colors and textures.

*** GEODESIC ACCURACY ***

• Produces perfectly regular geodesic grids, which by definition contain exactly 12 pentagons. They are fully functional: color, texture, extrude and path-find through them like any hexagon. The grid can also be shifted so pentagons avoid undesired positions.

*** REQUIREMENTS ***

• Full C# source code and a demo scene included.
• Supports Built-in and URP pipelines.
• Compatible with Unity 2022 and Unity 6, including Render Graph.
• Works with SM 2.0 for basic features on all platforms; texture arrays require SM 3.5+; extrusion uses geometry shaders (SM 4.0+, OpenGL & DirectX, not supported on Metal).

Spin up a hexagonal planet for your next strategy game and start placing tiles today.

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