Bevy Fast Light

Simple 2D lighting for Bevy focused on performance over features.

:warning: | This is still in development and not at all feature complete.

Features

• Simple and fast PointLight2d light source with falloff configurable via inner and outer radius.
• Simple and fast AmbientLight2d light source.

Limitations

• There is currently no light occluders or shadow casting at all.
• PointLight2d does not look nice with low ambient light.

Usage

Take a look at /examples to find out how to use this crate.

Examples

ambient_light.rs

Basic scene with a blue AmbientLight2d, a red rectangle as background and a PointLight2d of the same color.

point_light.rs

Basic scene with a green rectangle as background and a PointLight2d of the same color.

Alternatives

• bevy_2d_screen_space_lightmaps
• bevy_light_2d
• bevy_lit

Inspired by

• Bevy Example - CPU Drawing
• Bevy Example - 2d Shapes
• Bevy Example - Extended Material
• aarthificial - Deferred Lights - Pixel Renderer Devlog #1
• Barney Codes - Introduction to shaders: Learn the basics!
• Inkbox - Creating My Own 3D Graphics Engine
• JohnBrx - Creating 3D Lighting for my 2D Game
• Shirley Leisurely Games - Overcoming Godot’s 2D Light Limit With a Custom Light System
• tEEvy - Understanding shaders is easy, actually
• github - motion-canvas/examples
• MDN - GLSL shaders
• slembcke.net - 2D Lighting Techniques
• slembcke.net - 2D Lighting with Hard Shadows