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Set the image based lighting options. For more info see the Image Based Lighting page.

Maxwell Render can use different HDR maps for each of the 4 available Environment lighting channels (.hdr or.exr formats supported):

• Background: doesn't influence the lighting in the scene, merely used to show up in the background
• Reflection: This map will be visible in reflections
• Refraction: This map will be visible through refractive transparent materials
• Illumination: This map will be used to provide illumination in the scene

Each of the channels can be turned On/Off, or set to use the current settings of the Physical Sky. So for example you could use an HDR map only for reflections/refractions but use the Physical Sky for illumination.

The Intensity parameter controls the exposure of the HDR/EXR map and so a higher intensity will provide more brighter lighting/reflections/refractions

Simulens

Simulens can mimick certain behaviors of real camera lenses such as bloom and diffraction. For more information see the SimuLens section.

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