LumiBrush

Artists and developers can quickly create cinematic, stylized, or atmospheric lighting without complex lighting setups. Inspired by lighting design techniques used in visual development and concept art, LumiBrush brings a painting & sprite based workflow to lighting in Unity. How it works: You control where light appears by painting and positioning sprites. LumiBrush generates a dynamic light cookie for directional lights and spotlights. The system works in two main ways: - Light Sprites - Light Painting. Light Sprites: - Light sprites can be moved, animated, or attached to objects - They can use textures, colors and different blend modes - Multiple sprites can be combined to build complex lighting shapes - Lighting updates in real time Light Painting: - A painting surface is created (plane or generated mesh based on scene topology) - Brush strokes paint vertex colors on the mesh - You can paint with different colors and intensity (Colors doesn't work for Butil in RP) - These vertex colors are rendered to the dynamic light cookie texture Light Baking: - Light baking can be done in Built in render pipeline and URP. - Light baking doesn't support using different colors - No support for light baing in HDRP right now. Performance: LumiBrush works by generating one dynamic light cookie texture for each light. Runtime cost consists mainly of: - A render pass that generates the cookie texture - Scene objects used for light sprites or paint meshes - No additional real-time lights are required. Lumibsurh is perfect for: - Atmospheric environments - Stylized lighting - Cinematic storytelling - Rapid lighting iteration - Prototyping scene mood and composition Whether you are prototyping or polishing your final look, LumiBrush turns lighting into a fast, creative process instead of a technical chore.