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Maxwell needs at least one light source to be able to render. If you get this message, it means that your scene doesn't contain any emitters (or environment lighting). Check your scene and enable environment lighting or include emitters. 

In Maxwell, an emitter material must be applied to the entire object, it can not be a multi-material object. Make sure you apply your emitter material to the entire object and that the object doesn't have any other materials applied to a sub selection of polygons/triangles. Regular objects can have multi-materials. 

This message means that Maxwell is trying to read a MXS file and it can not understand it. This is caused by the export plugin you are using, which may be newer than your running Maxwell version, so the plugin produces a MXS file that your Maxwell version (older) can not understand. We also highly recommend to avoid special characters in your filenames and scenenames as these can cause problems on different systems.

If you've recently upgraded your plug-in, make sure you've also upgraded Maxwell. You will usually find in the plug-in release info, which version of Maxwell the plug-in is compatible with.

You will find the latest versions from our Download Area (through the Customer Gateway). The latest version of Maxwell is also there.

This means that a file (a texture, an IOR file, a IES file etc.) has not been found in the path specified in a material or the Image Based Lighting environment. Take note of the filename and filetype and make sure the file is actually where it is supposed to be.

MXED/Maxwell Render/Maxwell Studio will look in the following paths to find the textures of a material:

• in the same folder where the MXM is located

• in a 'textures' subfolder where the MXM is located

• in the project folder (ie where the MXS file is located)

• in the texture paths specified in Maxwell Render/ Maxwell Studio preferences. To set these paths, go to:

  • File>Preferences>Paths (both in Maxwell Render and in Maxwell Studio)

This means that even if the texture isn't actually in the path specified in the material (for example you are using a downloaded material where the texture path is only relevant to that users computer, and not yours) you can still place the texture in one of the paths specified above, and Studio/Maxwell will still find it and the render can run normally.