Can someone kindly explain the difference between color and alpha output from the image texture node? I can't really find any useful information in understanding the difference between these two. Thank You So Much.
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2$\begingroup$ Well explained in the manual: docs.blender.org/manual/en/latest/render/shader_nodes/textures/… Does this help? What else? $\endgroup$– brockmannMay 5, 2020 at 11:49
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Alpha datas are useful when you want to give transparency to an area of your material.
In the case of the Image Texture Alpha output, let say you have a PNG with a transparent background (0% alpha). Plug the Image Texture's Alpha output into the Alpha socket of the Principled (or into the Factor of a Mix Shader between a Diffuse and a Transparent shader), the alpha of your image will be recognized as the area that needs to be transparent.
