Can anyone point my in the direction of a shader which only features self-lit vertex colors combined with a slider for object-wide transparency? I’ve looked all over and found mostly shaders which also feature a slot for texuremaps, or use vertex info for tranparency, etc.
This is a few lines. You need to read this page, this page (you want a Range), and this page (you want alpha blending). The combiner statement is the most complex, so I’ll give that to you: