*Inheritance: EventDispatcher → Node → LightingNode →* # BasicLightMapNode A specific version of [IrradianceNode](IrradianceNode.html) that is only relevant for [MeshBasicNodeMaterial](MeshBasicNodeMaterial.html). Since the material is unlit, it requires a special scaling factor for the light map. ## Constructor ### new BasicLightMapNode( lightMapNode : Node. ) Constructs a new basic light map node. **lightMapNode** The light map node. Default is `null`. ## Properties ### .lightMapNode : Node. The light map node. ## Source [src/nodes/lighting/BasicLightMapNode.js](https://github.com/mrdoob/three.js/blob/master/src/nodes/lighting/BasicLightMapNode.js)