Baked texture is too dark I baked a procedural texture and now it renders very dark.  For the node setup I simply plugged in an image texture node with a diffuse shader (with roughness set to 0) into the material output.  No lighting was changed, the mesh was smart UV unwrapped and the image was baked to a transparent background. Is there a common reason for this?  

Here is a screenshot (.blend is way too large to upload unfortunately).  The highlighted part is usually rendered much brighter with more visible detail.



This is what it renders like without the bake and here are the bake settings:



Thanks
You have two points to refine.
1. Use the emission shader.
2. add transparent input.

1. Use the Emission Shader

I should have noticed this earlier but when you bake with combine, the shader to use is usually an emission shader.

2. Add transparent input

As far as I know, combine baking does not support transparent shader. Your node system requires the transparent nodes that you already use.