1. HDR sky ball material, material properties, change the Shading Model lighting model to Unit no lighting mode, open the Two Slided double-sided, and open Is Sky.
Create a material instance
2. Open the material example, you can adjust the Angle rotation angle and set the CubeMap cube map.
3. Add your own sky ball to the scene
3.1 Create a Sphere into the scene
3.2 Assign the newly created sky sphere material example to the Sphere material.
3.3 Adjust the Sphere zoom
After the above steps are completed, you can see our own Sky Ball in the scene.