User Guide
Documentation for Spray Manager Pro
System Requirements
Unity 2022.3 LTS or higher
Universal Render Pipeline (URP) or High Definition Render Pipeline (HDRP)
Decal rendering enabled in pipeline settings
⚙️ Installation
Import the Spray Manager package into your Unity project (2022.3+)
Make sure your project is using URP or HDRP with the Decal feature enabled
Open the main window via:
Tools > Latin Tools > Spray Manageror pressCtrl+Alt+SThe system will automatically create the necessary configuration files in your project
🪟 Spray Manager Window
Access the main interface through Tools > Latin Tools > Spray Manager. The window contains three main tabs:
📋 Info Tab
Welcome information and documentation links
Support contact information
Version details and update checking
Startup preferences configuration
🗂️ Atlas Manager Tab
Create Atlas Groups: Organize your textures into themed collections
Assign Materials: Automatic material creation or manual assignment
Preview Sprites: Real-time preview of all sprites in your atlases
Search and Filter: Quickly find specific textures or groups
🎨 Scene Sprays Tab
Enable Spray Tools: Activate scene placement tools
Tool Selection: Choose between Place, Paint, or Line tools
Atlas Selection: Pick your active atlas group and sprite
Scene Management: View and manage all sprays currently in the scene
🛠️ Placement Tools
Spray Manager provides three specialized tools for different placement workflows:
🎯 Place Tool (Hotkey: 1)
Perfect for precise single decal placement
Real-time preview with surface alignment
Visual gizmo showing placement area and orientation
Controls:
Click to place spray at cursor position
Shift + Mouse Wheelto adjust scaleAutomatic surface normal detection
🖌️ Paint Tool (Hotkey: 2)
Ideal for painting multiple decals across surfaces
Circular brush with adjustable radius
Density control for spray distribution
Random rotation and scale variation
Controls:
Click and drag to paint multiple sprays
Shift + Mouse Wheelto adjust brush radiusCtrl + Mouse Wheelto adjust random rotation
📏 Line Tool (Hotkey: 3)
Great for creating evenly distributed decal lines
Two-click line creation with preview
Configurable spray count and spacing
Random offset options for natural variation
Controls:
First click sets start point
Second click completes line and places sprays
Mouse Wheelto adjust spray countCtrl + Mouse Wheelto adjust random offset
✨ Custom Shaders
Spray Manager includes 5 specialized decal shaders for different visual effects:
Standard
Clean, optimized decal with alpha support
Static decals, logos, dirt
UV Scroll
Animated movement via UV manipulation
Flowing textures, water, energy
Distortion
Refractive and heat-like distortion effects
Heat waves, magical effects
Flipbook
Frame-based animated decals
Animated effects, fire, smoke
Pulse
Rhythmic scaling or blending animation
Glowing effects, breathing textures
All shaders support:
Emission effects with color and intensity control
Dissolve effects for edge fade-out
Normal mapping for surface detail
Edge fade for smooth surface transitions
🧩 Spray Component Inspector
When you select a placed spray in the scene, a custom inspector appears with three organized tabs:
🔧 Spray Setup Tab
Atlas Selection: Choose from your configured atlas groups
Sprite Selection: Pick specific sprites with visual preview
Real-time Updates: See changes immediately in the scene
⚙️ Advanced Settings Tab
Material Configuration: Switch between atlas materials and custom materials
Shader Selection: Choose from the 5 available shader types
Effect Controls: Configure emission, dissolve, and normal mapping
Decal Settings: Adjust draw distance and projection parameters
🎚️ Editing Tools Tab
Size Controls: Quick scale adjustments and presets
Rotation Tools: 90° rotations, random rotation, flip controls
Alignment Tools: Align to surface, face camera, snap to grid
Surface Anchoring: Smart positioning tools for edges and centers
🗂️ Atlas Management
Creating Your First Atlas Group
Go to the Atlas Manager tab
Click "Add New Group"
Give your group a descriptive name (e.g., "Environment Decals")
Choose a background color for easy identification
Add texture atlases by clicking "Add Atlas"
Best Practices
Organize by Theme: Group related textures together (dirt, graffiti, damage, etc.)
Consistent Naming: Use clear, descriptive names for easy searching
Material Assignment: Let the system auto-create materials or assign your custom ones
Sprite Preparation: Ensure your textures are properly set up as sprite atlases
📋 Scene Management
The Scene Sprays section provides powerful tools for managing all decals in your scene:
Bulk Operations
Select All: Select all spray components in the scene
Enable/Disable All: Toggle visibility for all sprays
Search and Filter: Find specific sprays by name or properties
Individual Spray Controls
Toggle Visibility: Enable/disable individual sprays
Quick Selection: Select and focus on specific sprays
Direct Deletion: Remove unwanted sprays with confirmation
⌨️ Keyboard Shortcuts
Global Shortcuts
Ctrl+Alt+S
Open Spray Manager Window
Escape
Exit spray tools / Cancel operations
Tool Selection
1
Place Tool
2
Paint Tool
3
Line Tool
Tool Controls
Place
Shift + Mouse Wheel
Adjust scale
Paint
Shift + Mouse Wheel
Adjust brush radius
Paint
Ctrl + Mouse Wheel
Adjust random rotation
Line
Mouse Wheel
Adjust spray count
Line
Ctrl + Mouse Wheel
Adjust random offset
Inspector Shortcuts
Ctrl+D
Duplicate selected spray
Ctrl+R
Reset rotation
Arrow Keys
Adjust scale
❓ Troubleshooting
Common Issues
Sprays not appearing in scene
Ensure Decal rendering is enabled in your render pipeline settings
Check that the material is properly assigned and uses a compatible shader
Verify the DecalProjector component is active
Materials not showing in Atlas Manager
Confirm textures are imported as sprite atlases
Check that atlas groups are properly configured
Ensure materials exist and use the Latin Shaders
Performance issues with many sprays
Use texture atlases to reduce draw calls
Consider using fewer high-resolution decals
Group related sprays for better organization
Shaders not found
Verify all shader files are properly imported
Check that ShaderGraph package is installed and updated
Reimport shader assets if necessary
📞 Support
For feedback, bug reports, or feature requests:
📧 soportelatintechnology@gmail.com
Version: 1.0.0 Last Updated: October 2025
Last updated