A pure black color will not be reflective at all in Lumion and a pure white colour will be fully reflective. making some parts of a material more or less reflective than others.ġ.1: If you are using Adobe Photoshop, please click on the link below to see how to add an Alpha Channel to an image:Įxternal Link: Adobe Photoshop Help: Create and edit alpha channel masksġ.2: Then paint the Alpha Channel with grayscale tones. In this article we will focus on the second option, i.e. Making some parts of a material more or less emissive.Making some parts of a material more or less reflective.Making some parts of a material more or less transparent.The Alpha Channel can be used for 3 different purposes in Lumion: In addition to the red, green and blue channel, you can add a so-called Alpha Channel to the texture if you've got Adobe Photoshop, GIMP or a similar image editor. You will need a special Color Map texture with an Alpha Channel in order to make some parts of a Standard Material more reflective than others.Ī Color Map (Diffuse) texture has normally got 3 channels: red, green and blue.
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