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How to obtain a perfectly transparent rendering? My object is composed of black material on the rendering that I would not like. Can I work on the light path in order to get a more transparent rendering ? Thanks

My screen settings

How my material looks

My rendering

EDIT 1

@susu , thank you for your respond, yes sure here it is :

enter image description here

EDIT 2

Thank you, I have tried and do not quite get the desired result, there is black in my material again

enter image description here

I would like the result to be close to that:

enter image description here

Thank you :)

EDIT 3

@lookin thank you :) i have done it but the result isn't quite what i wanted (the object on top is the one with your node tree)

enter image description here

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    $\begingroup$ It makes no sense to add shaders the way you are adding them. Use the principled shader only and explore the settings for transmission and alpha. $\endgroup$ – susu Sep 23 '20 at 11:52
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In order to have a more transparent material, use a Transparent BSDF shader instead of a Glass BSDF.

I mean this kind of node tree: enter image description here

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    $\begingroup$ there is no need for an additional shader, the principled shader can do alpha directly. $\endgroup$ – susu Sep 23 '20 at 11:48
  • $\begingroup$ @susu yes you're right! $\endgroup$ – loopkin Sep 23 '20 at 11:53

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