[UE4] Simple Light Painter V1.1

The Material based Fake Lighting Solution for UE4.

Version 1.1 is now available and offers Mobile Support!


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The Simple Light Painter (in short: SLP) is a material based Lighting System for your realtime Unreal Engine Projects and Games. It can light up the backside of your objects for indirect lighting and also offers simple localized Global Illumination with Emissive Material Support.

Try out the Demo Builds with runtime Examples and Performance Tests! (VR Pawn is not included with this Asset Pack)


INFORMATION: This Lighting System is supposed to be used in addition to traditional Lighting Methods and is not a replacement. The Lights can not cast Shadows.

Technical Details

General Features
Supports VR, Mobile, Forward Shading & Deferred Renderer (See documentation for more details.)
Demo Maps with examples and performance tests
Editor Utility Widget for easy Level editing and debugging (The Plugin "Editor Scripting Utilities" needs to be enabled in your Project.)
100% Made in Blueprints

Light Features
Light Types: Point Light (Area), Cube Light (Area), Square Light (Directional)
Adjustable Normal Influence (Can light the Backside of your objects)
Blend Modes: Modulate, Additive, Additive with Scene Color (Only in Deferred Rendering)
Settings for Light Colors, Falloff and Center Size
Localized Global Illumination with runtime updates and Emissive Material Support

Performance Features
Draw Distance and Fade to deactivate Lights (Vertex Shader)
Supports Occlusion and Visibility Culling for Rendering and GI
Pixel and Vertex Shader instructions are automatically being adjusted to different Settings. (PS Range: 81 to 158; VS Range: 103 to 115)

Number of Blueprints (with/without Demo Content): 23 / 11
Number of Materials (with/without Demo Content): 222 / 183