User Guide

Documentation for Spray Manager Pro

🪟 Main Editor Window

The Spray Manager Window provides two main sections:

🗂️ Decal Library

• Organize decals into groups (folders).

• Preview decals in real-time.

• Quickly assign decals to new or existing sprays.

🎨 Spray Tools

• Choose between 3 placement modes:

  • Place: Drop a decal where you click.

  • Paint: Draw decals freely across surfaces.

  • Line: Create evenly spaced decals along a path.

• View all sprays currently active in the scene.

✨ Custom Shaders

Spray Manager includes a set of stylized shaders to extend Unity’s default decal behavior:

Standard

Clean, optimized decal with alpha support

UV Scroll

Animated movement via UV manipulation

Distortion

Refractive and heat-like distortion

Flipbook

Frame-based animated decals

Pulse

Rhythmic scaling or blending animation

Each shader is compatible with URP and HDRP.

🧩 Spray Component Inspector

When selecting a placed spray in the scene, a custom inspector will appear:

🔁 Spray Selector

• Switch between decals defined in the manager.

• Live preview while switching.

🛠️ Spray Settings

• Adjust size, rotation, blend factor, normal strength, and more.

• All changes are non-destructive and editable at any time.

🎚️ Spray Tools

Use built-in tools for rapid editing:

• Move, rotate, align and duplicate sprays with ease.

• Snap to surfaces and rotate to match normals.

• Group or ungroup decals visually.

🧪 Examples

The package includes a sample scene showcasing:

• Multiple decals using different shaders

• Use of all three placement tools

• A working spray library setup

• Integration into a sample environment

❗ Known Limitations

• Only compatible with URP and HDRP (no Built-in RP support).

• Requires Unity 2022.3 LTS or newer.

• Decals are editor tools only — not meant for runtime instantiation (though you can extend it).

📞 Support

For feedback, bug reports, or feature requests: 📧 [e-mail]