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Make Gradient opacity (visible at top, invisible at bottom)

I am pretty sure that i have the 4.10.

Hi all , I know that probably i should set the material in additive mode. to look like a ghost . but lets leave that part for another day.

I cant understand why i cant have a nice smooth gradient with the opacity. As you can see i have a pillar , just a custom cube. and the texture jump from visible to unvisible. As you can see in the upper left part , i have made a black shape that show how the texture get the mask applied, But i am trying to to have a smooth gradient .

I hope its clear enough. i dont know much of materials, if there are more important setting let me know and i will take a screenshot of them all.

Thanks to all

alt text

Product Version: UE 4.10
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test_mask.jpg (517.9 kB)
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asked Apr 22 '16 at 03:44 PM in Rendering

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Est_engine
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Your material is set as masked. The Opacity Mask pin clamps the output to a binary value of black or white.

If you want a smoothed transparency you'll want to change your material to translucent and plug the opacity map into the "Opacity" pin, not "Opacity Mask"

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answered Apr 22 '16 at 10:41 PM

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Vailias
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avatar image Est_engine Apr 23 '16 at 11:33 AM

Thanks man, really thanks , i can go forward in my experiment without watch other 20-40 tutorials about materials. Really thanks.

I am pretty sure that things like that should be shown in the editor. like , this pin will clamp out your value to bynary value .... instead of "Descprition of final material imput"......

avatar image Vailias Apr 23 '16 at 06:55 PM

The in game popup documentation could certainly use some work, yes. :) People from Epic have mentioned this in their live stream. Its a staffing vs time thing.

In the mean time you may wish to bookmark this page https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/index.html

As it has all the info about materials and the material editor you'll want to know.

Specifics for each output pin are here: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/MaterialInputs/index.html

And specifics for each material type are here: https://docs.unrealengine.com/latest/INT/Engine/Rendering/Materials/MaterialProperties/index.html

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