How to set up HDRI environment in Corona for C4D?

To use a custom HDR image as an environment in your scene (for direct visibility and lighting):

  • Add a Corona Sky object to your scene (Corona > Corona Sky):

  • Select the Sky object and change the "Type" to Shader/HDRI:

  • Load the HDRI of your choice into the shader slot of the Corona Sky object:

  • A low-resolution preview should be visible in the viewport display: 

  • The viewport resolution can be increased from "Default" to a higher resolution you're happy working with:

  • To make the environment visible only to specific ray types (direct visibility, GI, reflections, refraction), you can add Corona Compositing tag to the Corona Sky object (Tags > Corona Tags > Corona Compositing):

  • Alternatively, visibility options can also be found within the Corona Sky object itself: