Why is my mix shader not working?

[noahfinlayshipman]

Hello, this is my first time using the mix shader and I cannot figure out why it isn't working as expected. I am trying to mix an aiStandardSurface with aiAmbientOcclusion.

Here is what my shader1 looks like without the mix shader:

Here is what my node network looks like:

Here is what my scene looks like when I assign the mix shader to my object and set the mix weight to 0.5:

This is what my scene looks like when I set the mix weight to 0.001, which should look like my shader1:

The mix shader does not appear to be mixing both shaders as expected. Does anybody know why?

Thank you.

[lee_griggs]

I am not sure what material/effect you are trying to achieve but I would have thought it would be ambient_occlusion -> mix_weight. I see nothing connected to your mix_weight.