Shaders How would I go about making a Image Distortion shader?

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BigDawg

Guest
How would I go about creating a shader that shows a raindrop texture and distorts the view around them? I don't know enough about shaders to be able to create this type of shader effect.

What I am trying to make is in this video of Metro Exodus where there is a raindrop texture in the top left and right hand corner of the screen which react with the main view and distort it.
(Skip to 1:33)
 
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beartone

Guest
always been thinking about these things its really very hard for me to learn these because very short of time but I think another youtube video would help
 
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