To hdrp Stylized Vegetation Wind Shader URP 2025

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Stylized Vegetation Wind Shader URP

Bring your environment to life with a high-performance, stylized wind system optimized specifically for the Universal Render Pipeline (URP). This package offers a complete shading solution that blends beautiful cell-shaded aesthetics with physically responsive wind simulation, giving you total control over how grass, trees, and bushes behave in your game world.

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Key Features

Advanced Wind Controller Manage the weather dynamics of your entire scene through a single global "WindController" script. The system calculates wind behavior efficiently, allowing for complex movement without sacrificing performance.

• Main Wind: Simulates the primary bending of vegetation based on wind strength, speed, and wave size.
• Wiggle Effect: Adds a layer of secondary motion to simulate fast, sharp wind gusts or leaf tremors, creating a more organic and detailed look.
• Global Turbulence: Utilizes global noise tiling and angle spreading to ensure wind direction and intensity vary naturally across the world, avoiding repetitive patterns.

Stylized Rendering & ShadingDesigned for artistic cohesion, the shader provides flexible tools to match your game's visual style.

• Toon & Cell Shading: Use custom ramp textures (gradients) to define light falloff, easily achieving a flat "anime" look or a softer diffuse style.
• Translucency: Simulates light passing through thin foliage with adjustable power and range controls, complete with translucent map support.
• Normal Reconstruction: Optionally recalculate mesh normals in real-time during wind deformation to ensure accurate lighting and shading even when models are heavily bent.

Optimization & PerformanceBuilt to handle dense vegetation scenes.

• GPU Instancing: Fully supports GPU instancing for shared meshes, which is highly recommended for rendering large numbers of plants efficiently.
• LOD Friendly: Includes toggles for receiving shadows and normal reconstruction to optimize performance on lower Level of Detail (LOD) models.

Workflow & Model Preparation The system relies on Vertex Colors to precisely encode wind data, giving artists granular control over animation behavior.

• Red Channel: Controls Wiggle strength (best used with a linear gradient from bottom to top).
• Green Channel: Controls random time offsets for noise to desynchronize movement.
• Blue Channel: Controls random angle offsets.
• Alpha Channel: Controls Main Wind influence (solid colors recommended for branches, gradients for small plants).

Package Contents

• Custom URP Shader.
• WindController script for global management.
• Debug tools to visualize noise textures and wind waves.

Requirements

• Unity 2025.4 or higher.
• Universal Render Pipeline (URP).

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Enjoy and thank you for downloading!

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