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Make An Object Partially Invisible

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Make An Object Partially Invisible

Postby mirkojpn » Sat Mar 02, 2019 5:54 am

Hello!
I'm Trying to make an Object Partially invisible, and chose in runetime by material property witch part to show, but right now i have some transparent stuff but not totally invisible... anyone can help me to do this?

i'm pretty new with shader stuff so i'm getting confused...

https://ibb.co/4pwFKfB
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Re: Make An Object Partially Invisible

Postby mirkojpn » Sat Mar 02, 2019 9:49 am

just did it by setup opacity, now i need to

Find the angle of the fragment based on the vector that goes from center to the fragment


Then check the angle against your criteria

any help?
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Re: Make An Object Partially Invisible

Postby mirkojpn » Sat Mar 02, 2019 10:28 am

Actually this is what i have actually, i want to be able to set the opacity to 1 from a specific point to an other then set to 0 all the other part

https://ibb.co/hZphS69
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Re: Make An Object Partially Invisible

Postby mirkojpn » Sat Mar 02, 2019 2:20 pm

i almost there.... just i must to be able to chose from where to mask it....anyone can help me?

https://ibb.co/pfp26wX
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Re: Make An Object Partially Invisible

Postby Amplify_Borba » Thu Mar 07, 2019 12:13 pm

Hello, thank you for getting in touch and for your support!

You can either use Opacity or Opacity mask, the difference being that through Opacity you can have different transparency values while when using the Opacity Mask, the object will either be fully visible or fully invisible ( a good example for this is chain fences ).

Can you please elaborate on how you're planning the effect to behave?

Here's a simple example using the Vertex Position node and a slider to produce the opacity mask, that hides the object through the Y axis:

Image
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