ShaderError

LightPainter is a Blender add-on from ShaderError for painting cinematic light directly in Blender's viewport. With brush-based control, you shape gobos, highlights, and shadows, an approach the developer frames as a new way to design lighting.

Shader View is a Blender add-on that previews node outputs directly in the Node Editor, without switching to Material Output. It shows real-time previews of shader nodes for both Cycles and Eevee.