Grayscale tones between black and white will result in more or less transparency in Lumion:ġ.3: Once you've added the Transparency mask to the Alpha Channel of the texture, please click on the link below to see how to save it to a 32-bit Color Map texture in TGA, BMP or TIFF format. There are 255 levels ranging from pure black (fully transparent) to pure white (fully opaque). The amount of transparency depends on how bright the pixels are in the Alpha Channel. External Link: Adobe Photoshop Help: Create and edit alpha channel masksġ.2: Then either paste a Transparency mask or paint the Alpha Channel.making some parts of a material more or less transparent 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: In this article we will focus on the first 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 transparent than others.Ī Color Map (Diffuse) texture has normally got 3 channels: red, green and blue.

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