Even simpler than PxrDirectLighting, the default integrator places a virtual light at the camera (the 'headlamp integrator'). No shadows or indirect lighting are evaluated. A good option when all is black - this integrator can help narrow down where a problem is occurring (for example, when the fault is in the lighting, particularly). Like PxrDirectLighting, it is not designed to produce 'final-quality' images. @parameters

VOP nodes