HDR Light Studio has an inbuilt interactive renderer that provides a preview of the lighting effect from the HDRI Map and Area Lights on a loaded 3D scene with a simple single shader for the whole model. This is view is called Render View (HDR Light Studio).
Some HDR Light Studio plug-in connections support a second render view panel, where the interactive render from the main 3D software is displayed in the HDR Light Studio interface. This view is called Render View (Host/Renderer) where the host is the 3D software connected, and the renderer is the active renderer in the 3D software.
You can find out more about the features and how to use these Render Views in the following pages.