Building a Spherical Voxel Planet in Unity: Challenges and Solutions
2025-09-01
A developer created a tech demo called Blocky Planet in Unity, attempting to map Minecraft's cubic voxels onto a spherical planet. This post details the challenges and solutions, including mapping a 2D grid to a 3D sphere, handling depth distortion while preserving block width, and efficiently finding neighboring blocks. The developer also discusses gravity, terrain generation, and block structures. While currently a tech demo, future plans include multiple planets/moons, chunk-based gravity, and planet collisions.
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Voxel Game