#Lighting System

#Overview

The lighting system supports multiple light types: point lights (up to 8), directional lights (up to 4), and spot lights (up to 4). All lights use Blinn-Phong shading with configurable attenuation.

#Adding Lights in the Editor

To add a light to your scene:

1. Create a new entity in the Scene Hierarchy
2. In the Inspector, click Add Component and choose a light type:
   • PointLight — emits light in all directions from the entity's position
   • DirectionalLight — simulates a distant light (like the sun); direction comes from the entity's Transform rotation
   • SpotLight — cone-shaped light; direction comes from Transform rotation
3. Configure color, intensity, and attenuation in the Inspector

#Components

#PointLight

#DirectionalLight

Direction is derived from the entity's Transform rotation.

#SpotLight

#Shader Details

• Shading model: Blinn-Phong (ambient + diffuse + specular)
• Ambient: 0.15 constant
• Specular: shininess = 32, intensity = 0.5
• Attenuation: 1 / (constant + linear*d + quadratic*d^2) for point/spot lights
• Spot cone: smooth falloff between inner and outer cutoff angles
• Fallback: if no lights exist, uses default light at (5, 10, 5)

#Integration Notes

• All light types are editable in the Inspector panel
• Light direction for DirectionalLight and SpotLight is derived from the entity's Transform rotation
• Maximum limits per frame: 8 point, 4 directional, 4 spot lights
• All components are serializable for scene save/load