## Creating your own HDRIs for Image-Based Lighting  > **AI draft:** generated from the Cheetah 3D 8.1.1 manual; not yet reviewed by the author. If you want to use a panoramic render for image-based lighting, the first thing to do is turn on **Save G-Buffer** in the renderer’s settings (with **Color depth** set to 16- or 32-bit). Then, after you render a panorama, the Render Manager will let you save the result as an EXR file, which an **HDRI Light** can load for image-based lighting. > *End of AI draft.*  *A steel sphere on a stucco cube rendered in the middle of the cityscape scene from [Rendering Panoramas](/12.6_Rendering_Panoramas/).*  *The same simple model rendered using the rendered HDR image for image-based lighting. (Note that the panorama had to be rotated 180°.) Note that the backdrop doesn’t quite match because the test object has been rendered as though it was located where the camera was — to match the original scene I’d need to place the camera where the object is and then render a new HDR.* > **AI draft:** generated from the Cheetah 3D 8.1.1 manual; not yet reviewed by the author. In most cases, using an HDRI Light together with radiosity will result in much faster rendering than any reasonably sophisticated lighting setup. > *End of AI draft.*