To make a sheild fx:


First, creat textures:


Next, make a material:

Then, apply this material to a semisphere or any shape of static mesh:



What I learned: Use component mask.

(A ComponentMask expression takes in one value which can be a vector of any size. This expression allows you to pick which components of a vector are allowed to pass through it. For example, you could input a Texture Sample,

and using the properties of the ComponentMask, output only the R and A values of that texture. The information would then be treated just like a Constant2Vector, in that it would only have 2 components.

This means it could be added, subtracted, multiplied, or divided by a Constant2Vector expression, or any other vector value containing only two components.)

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