I'm attempting to overlay a transparent PNG texture over a plane to create a glowing cutout effect. However, the transparent regions of the cutout aren't actually transparent and are casting a shadow on the floor below. Below are the top, side and node setup of the plane with the texture.
Set the transparent bsdf to one color (solid white: 1, 1, 1...alpha is disregarded). For this shader to be truly "transparent," the color must be so.
Transparency color levels from left to right: 0, 0.25, 0.5, 0.75, and 1 (yes, there is an invisible monkey on the end).
Here is the demo blend:
And here is a link to the transparent shader in the manual:
The color can also be used to tint (it doesn't have to be the same for R, G, and B channels):
From left to right, the RGB color is as follows: (0.5, 0, 0), (0, 0, 1), (0, 0.75, 0), (0.75, 1, 0.75), (1, 1, 0).