Houdini: Geometry lights

Geometry lights

add light node type: geometry (check render light geometry) area light options -> select geometry object check transform into this object add a new material (principal) apply it to torus (or the object...) add a UV texture node to the torus, before the mat then in the geolight -> area light options -> material: add the mat here too go into the material -> textures tab -> check emission dir: $HFS/houdini/pic/Mandril.pic surface tab -> emission color: 1 1 1 emission intensity: adjust here!! base color: 0.02