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This is the final step to get the object reflected in wet weather effects. It is important to add objects individually and carefully to the reflection mapper. More details on this can be found in this article: Reflection Mappers.
To add the object to the mapper add a line with "IncludeIns=<InstanceName>". Please be aware that it is the Instance name and not the GMT file name that this matches on, although they are often the same.
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