Learn how to color low poly terrain using a slope gradient, a height gradient, and a blend curve -- a broadly reusable method that works across terrain shaders. The article explains the visual logic behind each parameter, includes a pseudocode walkthrough, and shows the technique applied in Polaris for Unity. Includes the height range pitfall that silently breaks gradient results, and guidance on when manual painting should take over.

Learn how to write an Unity sky shader in ShaderLab, with sky gradient, sun and cloud.