Initial Concept

The task was to create grass in any game engine, I chose unity for it’s low level support of geometry shaders. The features that I added to it were:

• Wind animation.
• Spawning via vertex.
• 3D (in a pyramid shape)
• LOD in distance to player, lowering the thickness of the grass in an exponential decay.
• Customisable colour of the grass.
• Noise generated through texture.
• Customisable Length, Width, and Length Randomness.
• Grass interaction with objects.

Skills used

The required skills to create the shader were:

• Familiarity with ShaderLab and supported OpenGL functions.
• Knowledge of Geometry shaders.
• Knowledge of Fragment shaders.
• Familiarity with script and material interaction.
• Ability to read textures in shaders.
• Knowledge of seeded instancing for each individual vertex.

Footage

Project Details

Date: Aug 1, 2017

Tagged: Unity, Shaders, C#