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Rotating Doors with Glass are becoming opaque?

We have a number of rotating doors in our environment and they look great when they are standing still however when I simulate all of the doors glass becomes opaque when they turn from animation.

How do you go about making objects with glass keep the glass transparent when being animated?

Product Version: UE 4.17
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asked Nov 03 '17 at 03:30 PM in Rendering

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MissionMan
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avatar image Firefly74 Nov 03 '17 at 03:41 PM

Could you post a screenshot ? of both face( transparent ) and rotating (opaque) ? can it be a material/reflection problem ? ( did you try with an empty transparent material ? )

avatar image MissionMan Nov 03 '17 at 04:28 PM

Didnt upload the clear version- alt text

clear.png (624.4 kB)
avatar image MissionMan Nov 03 '17 at 04:14 PM

Sure- Here are some screens- The material is M_Glass.

is it a material/ reflection problem- thats what I am assuming.alt text

No I have not tried it with an empty transparent material

opaque.png (766.3 kB)
avatar image Firefly74 Nov 03 '17 at 04:46 PM

try with an other transparent mat, if it work, try duplicating the glass mat and try with the new one ( who knows ). Do you work with static lighting or dynamic ?

avatar image Firefly74 Nov 03 '17 at 04:54 PM

just tried here and it work fine (4.16.3) simple cube with starter content m_glass material + rotation on tick, try to do a test with a simple new blueprint like that, if does work, check the diff in the rendering setting of the mesh

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So the objects had morphs- turns out we had to check a box in the material to "use with morph"

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answered Nov 03 '17 at 05:29 PM

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MissionMan
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