But in some image types, such as a PNG file, we may have a fourth channel that we call alpha. If there is a difference between them you can say that in an image, we have red, green and blue channels. They are after all, almost the same thing. The words transparency and alpha are often used interchangeably. What is transparency and its prerequisites? Let’s cover the details on how we achieve this in both Eevee and Cycles as well as some possible caveats and downsides that we may encounter. We mix the two shaders together with a mix shader and use the alpha channel from the image texture node as the factor input. To use an image textures alpha channel in Blender we need to set up a material that combines a shader node like Principled BSDF with a transparency BSDF node. But when I learned about shaders and the node editor, I found the answer. When I first came across a situation when I needed a transparent image in Blender, I didn’t have any idea how to make that happen.
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