When you select one or more ArchiCAD more ARCHICAD object (walls, library objects, etc.) the plugin palette layout changes to display the Maxwell object parameters of the selected item(s).
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These parameters are the same visibility parameters you have in Maxwell Studio. For further information please read the MAXWELL MANUAL Attributes Panel: Object
In case the selected ArchiCAD selected ARCHICAD object is a Lamp, you have further options:
Intensity multiplier
The plugin automatic calculates the emission value of the ArchiCAD the ARCHICAD lamp for Maxwell, in case you would like to deviate from it you can adjust it with this multiplier.
Radius multiplier
Maxwell emitters are real geometry items. During the export the plugin creates one or more small sphere object(s) with emitter materials to simulate the light source. The position of the sphere object(s) is defined in the ArchiCAD the ARCHICAD lamp GDL script. It can happen that the light source is behind some other object (or for example the light bulb with not transparent material surrounds it) which means the light can't come out from the lamp. In this case it can be a workaround to increase the radius multiplier so the sphere outgrows the other object. Sometimes it can be an acceptable solution, sometimes it is better to make the sphere smaller. There is not general advice, it depends on the actual Library object.
Segments
Number of segments of the generated spherical emitter. Use bigger value here to improve quality (in case the light contour is not smooth) but keep in mind that emitters with more polygons can slow down the render process.
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