Grass Shader

While working on the game Bitcraft, we needed a versatile grass shader that could be adjusted to fit any of the biomes we'd create in the future. It also needed to be optimized so that it could be instanced throughout the scene and still run on a mobile platform. Hexagonal flowers also reinforce the game's hexagonal theme.

This is a video of me adjusting the different material parameters of the LOD0 grass to show what they can do.

This is the LOD0 grass shader. Grass blades are constructed procedurally by applying a fraction function to the mesh's horizontal UV coordinates. The blades are then warped using some 3D noise to simulate a swaying motion.