Rhia474 posted at 9:19 PM Thu, 20 April 2023 - #4462915

Hi-why don't you take a look at this tutorial, it may help with the basics.

https://www.posersoftware.com/article/536/poser-basics-how-to-use-hdr-lighting

In short, your image does not rotate because it is on the backgound, not on a sphere. To rotate the background image, change the Y value in the rotation of the mapping node. (It is explained in the tutorial).
If you purchased the lights I recommended, there is a light set in those that says 'lights the scene but does not render'. Use those--you will see in the scene but it won't be visible on the render as they are set already that way. (Both of those sets contain a light set like that).
The point of the HDRI is that you don't *need another light.

That's not entirely true.  HDRI will provide natural, ambient illumination which suffices in most cases but will require additional lighting to bring out more detail and highlights.  This is because HDRI lighting is rather diffuse and flat.  An example of its use can be seen in The Mandalorian.  The sets are huge environmental domes that have HDRI projections that provide visuals and natural environmental illumination.  Other types of lights provide additional interest and highlighting to accent the actors in the scene.