GPU Particle Grass System

Grass System

• GPU Particles: 17x17 grid of particle emitters covering 400m radius around player
• Density LOD: Near grass is dense, distant grass fades out for performance
• Entity Interaction: Grass bends away from players and mobs
• Slope Alignment: Grass blades align to terrain normals for natural hillside coverage

Visual Style

• Toon Shading: Stylized look matching the Synty aesthetic
• Wind Animation: Procedural wind sway with world-space noise
• Color Blending: Improved base-to-tip color gradients and terrain blending
• Curved Blade Mesh: Custom 3-blade grass mesh for natural look

Performance

• Shader-Based: All positioning and animation done on GPU
• Culling: Particles outside view frustum automatically culled
• Organized Assets: Grass shaders and constants in dedicated folders