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Opacity grey values being ignored???

Hey there trying to make a dirty window material via Substance Designer and getting strange results.

ie in SD I have this Opacity map...

alt text

but when I import it into UE4 I get this result...

alt text

even though it seems to be using the right Opacity map it seems to be ignoring the grey values and just using black or white even though I have the Blend Mode of the material set to Masked (any other settings don't work).

alt text

Am i missing something?

Thanks in advance.

Product Version: UE 4.12
screenshot_3.png (1.1 MB)
screenshot_1.png (364.2 kB)
screenshot_2.png (199.6 kB)
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asked Jul 13 '16 at 05:10 AM in Using UE4

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avatar image twistedpancreas Jul 13 '16 at 06:16 AM

Or when I change to Translucent blend mode I lose my Normal, Metallic and Roughness options :(

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