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The mxiReader Read knob has the following controls. These are not interactive, so they can be slow y some cases (specially when SimuLens diffraction and scattering are enabled):

• Iso
• 1/Shutter
• Sharpness
• Aperture Map
• Obstacle Map
• Diffraction
• Frequency
• Lens Scattering
• Devignetting

The MxiMixer

The MxiMixer node allows the user to use the Maxwell Render Multilight feature in Nuke. To load an MxiMixer node in Nuke you have three choices:

• Press the x key, or go to File > Script Command and type in "MxiMixer". Select TCL and click OK.
• Go to the Maxwell Nodes menu and select MxiMixer (see Installing the Python scripts).
• Type CTRL+M (see Installing the Python scripts).This creates a new node in the node graph viewer. Attach the MXI file node output to the MxiMixer node input, and the MxiMixer output to a Viewer node (or any other node you need).

The MxiMixer node allows you to mix up to 32 different lights. You can select the lights you want to mix from the MXI file/sequence, or automatically fill the panel with all the lights in the MXI file by using the “Set Channels” button.

You can adjust the intensity of each light independently, and you can even over-expose the lights. The Global Intensity slider allows you to control all the lights’ intensity at once.
The intensity sliders can also be animated. You can work with either a single MXI or with an MXI sequence.

The range of the intensity sliders depends on the type of light. The correspondence with the intensity values in the Maxwell Render Multilight panel is stright-forward. Each light have its own "Mute" and "Solo" options.

Furthermore, you can load .emixer files. Those files are generated in Maxwell Render when you animate lights over time. Simply open the .emixer file in the “Emixer File” dialog, and click on “Load Emixer”.