Hi guys, needing some help with surface shader, I am tryinto set up an image plane as a background and use the alpha channel in the Tiff image to get rid of the background, but when I do this the whole image goes transparent instead of getting rid of just the black background.  I have uploaded a screenshot of my texture set up, hopefully someone can spot what i am doing wrong.

Thanks

James.

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Right now, your image file is driving both the transparency and the opacity of your material, you don’t want to drive both.

Delete the connection between your image file node and material node - and reconnect the transparency manually (from the out.Alpha of your file node).

Transparency and opacity are the same thing - but scale opposite of each other:

0% Opacity means you can see entirely through the object.
100% Opacity means you can’t see through the object at all.

0% Transparency means you can’t see through the object at all.
100% Transparency means you can see entirely through the object.

So basically, if a shader is 100% opaque, and 100% transparent, you get a 50% transparent/opaque material.

n8skow [FA]