Click Visualize tabRender panel (expanded)Render Environment and Exposure. Find
On the Render Environment & Exposure palette, under the Environment category, click the Environment toggle to enable image-based lighting.
Click the Image Based Lighting drop-down list and select an image.
Drag the Rotation slider or enter a value in the Rotation text box to adjust the rotation of the image.
Optionally, select Use IBL Image as Background to apply the image to the background of the rendered image.
Select Use Custom Background and click Background to specify a solid color, gradient, or custom image file. Sun and sky simulation isn't available when using IBL as the background image.