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Chapter 14. Mapping Coordinates: Getting... > Using Masking for Better Map Control

Using Masking for Better Map Control

Using one map alone usually won't give you the control you need to achieve the result you want. In this section, you'll learn to use a technique called masking, in which one map masks out the effects of another map. In this scene, the floor tiles and grout both have the same reflectivity, which is not usual in the real world. The more porous grout would tend to have less or almost no reflectivity.

In the mask, white pixels will allow the event, in this case reflection, to happen and black pixels will mask the effect out. You already have the appropriate map being used as the Bump map, so all you need to do is copy it to the Mask slot.


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