VFX Grass

Documentation | Discord

VFX Grass is a high-performance, GPU-accelerated vegetation system designed specifically for Unity’s High Definition Render Pipeline (HDRP) and Universal Render Pipeline. Unlike traditional geometry-based or terrain-detail grass, this asset leverages the Visual Effect Graph (VFX Graph) to instantiate and animate thousands of stylized/realistic grass blades with minimal CPU overhead.

By harnessing the power of the VFX Graph, it allows developers to create lush, interactive, and wind-affected grass fields that remain performant on modern hardware. Whether you need a small patch of decorative lawn or an expansive stylized meadow, VFX Grass provides the tools to customize every blade’s movement and appearance in real-time.

Core Technology

• VFX Graph Driven: Uses Unity’s compute-shader-based VFX Graph to handle particle-like spawning of grass blades. This allows for massive density that scales far better than standard Mesh Renderers.
• GPU Instancing: Utilizes efficient GPU instancing to draw numerous similar objects in a single draw call, maintaining high frame rates even in dense fields.

Feature

• Extremely fast, easily more than 1 million instance
• Procedural wind system
• Dynamic
• Interactive
• Highly customizable
• Native support by Unity Shader graph and Vfx graph
• Stylized Aesthetic: Optimized for a clean, "painterly" or stylized look that is popular in modern indie and AAA titles

Complexity

• Very easy to set up and use
• Easy "drag-and-drop" implementation via pre-configured prefabs or by dragging VFX Graphs directly into a scene
• One click set up

Contains

• HDRP Sample Scene
• 24 flat grass textures
• 24 shaded grass textures
• 3 Meshes with LOD