This is a link that will explain what High Dynamic Range Images are about:

https://www.cgibackgrounds.com/blog/what-is-an-hdri

This is to understand better the process involved in creating such an image and its utilization in commercial and 3D applications.  The photos serve a dual purpose, they provide a 360-degree panorama background and high dynamic range realistic lighting to your 3D virtual environment.   When a model is properly textured with Physically-Based Rendering Material and combined with an HDRI environment, you will get a render like something below:

A rendered image that will look naturally real.  The example I'm showing is a model that had its texture materials redone and rendered in a scene with a 360-degree HDR image map and no additional lighting.  Poser and DS have different ways of projecting an HDRI map and you'll need to explore how each software handles these images for a render.  There are many sources for free maps available and you can use your favorite search engine to find those sites.  Some have excellent sources, others not so great.  But you need to understand the fundamentals before you dive into this aspect of rendering 3D images.