Problem with nodes in Maya - object turns black

Escapist · Jun 2017

Hello everyone!

I hope this is the right section in the forum for my question. If it's not, please let me know.

I am still very new to this, so please consider you are explaining to a noob. ^^

So... my problem is the following:
I am trying to create an eye following a tutorial and everything was fine until I started working with the nodes for the materials in Maya + Arnold (2017) + alShaders. I created a mask (as a texture), which should make the cornea of the eye transparent above the iris. However, when I connect the nodes (as shown in the pictures below), the entire eye turns black (something like a silhouette).
What am I doing wrong? Please advise. Also if you need more information, please let me know.

Best regards!

throttlekitty · Jun 2017

That should work for at least getting a color though it may get confused by shader passes being mixed in. Try replacing blendColors with a layeredShader, and attach your mask to the top layers transparency (these nodes work left to right, left is top).

Escapist · Jun 2017

Still the same sadly.

Here is what's happening with both surfaceShader and layeredShader.

Problem with nodes in Maya - object turns black

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