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bioluminescent at night material

How can I make my plants change material to an emmisive one in the night so that it is "Bioluminescent". If you ever saw James Cameron Avatar you know what I mean. Thank you

Product Version: UE 4.19
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asked Mar 24 '18 at 12:41 PM in Blueprint Scripting

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It depends on how you are switching between day and night. But the basics on how to accomplish the switch are pretty simple, theres two methods i can think of off hand. First you can use the set material node which will give you an instant change to the new material like flicking a switch. Second and this is the method i would use is to multiply the emmissive value by a scalar parameter in your material and set the scalar prameter from inside your blueprint using a set material scalar parameter node. This method allows you to change the emmissive over time if you wished through the use of a timeline which would create a more natural look.

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answered Mar 24 '18 at 02:12 PM

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