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Scene Lighting

The lighting system allows you to add and customize different types of lights to enhance your scene's visual appearance.

Important: Scene lighting affects only 3D meshes (GLTF/GLB files) and hotspots. Gaussian splats are not affected by any lighting changes.

Default Scene Lighting

Every new scene starts with a default hemispheric light that provides basic illumination. This default light can be: - Modified like any other light - Deleted if not needed - Replaced with different light types

Compatible Elements

  • GLTF/GLB 3D models
  • Hotspots (all types):
  • Sphere hotspots
  • Image hotspots
  • Custom mesh hotspots
  • Interactive elements with mesh components

Accessing the Lighting Menu

  1. Open the Scene Editor
  2. Navigate to the "Scene Lighting" tab
  3. Enter Light Edit Mode to begin adding or modifying lights

Light Types

Hemispheric Light

  • Simulates ambient lighting from the atmosphere
  • Provides soft, omnidirectional illumination
  • Perfect for general scene lighting

Point Light

  • Emits light in all directions from a single point
  • Similar to a light bulb
  • Great for local lighting effects

Directional Light

  • Parallel light rays coming from a specific direction
  • Simulates distant light sources like the sun
  • Casts consistent shadows

Light Management

  • Add multiple lights of different types to create complex lighting setups
  • Select any light to edit its properties
  • Delete unwanted lights by selecting them and pressing the delete button
  • Combine different light types for enhanced visual effects
  • No limit on the number of lights you can add to a scene

Light Properties

Each light type can be customized with the following properties:

Property Description
Name Custom identifier for the light
Intensity Controls the brightness of the light (0.0 to 1.0)
Color Sets the light's color using RGB values
Position Determines the light's X, Y, Z coordinates in 3D space
Rotation Controls the light's orientation in degrees
Range (Point lights only) Sets how far the light reaches
Direction (Directional lights only) Sets the angle of light rays

Light Transformation

Position

  • Use the transform gizmo to move the light in 3D space
  • Drag along X, Y, or Z axis for precise positioning
  • Input exact coordinates in the properties panel

Rotation

  • Rotate lights using the rotation gizmo
  • Adjust angles precisely using degree inputs
  • Particularly important for directional lights

Working with Lights

  1. Enter Light Edit Mode
  2. Click "Add Light"
  3. Select your desired light type
  4. Adjust the light's properties using the inspector panel
  5. Position the light using the transform controls

Customization Tips

  • Double-click the light's name to rename it
  • Use the color picker to select precise light colors
  • Adjust intensity gradually for natural-looking results
  • Preview changes in real-time as you modify properties

Best Practices

  • Remember that lights only affect meshes, not Gaussian splats
  • Start with a hemispheric light for base illumination
  • Add point lights for accent lighting
  • Use directional lights to create dramatic shadows
  • Remove unnecessary lights to optimize performance
  • Name your lights descriptively for easier management