 So you have awesome boosters, but you wish the air was distorted around it not a problem for this You will need to create a black mask variant of your thruster texture once you have that right click create a new material Name it open it and set blend mode to translucent and shading to unlit hold T And left click to get three texture nodes set them to your lava noise your thruster mask And this one should be unreal's default water normal map hold M and left click to get three Multiply nodes an add node a planner node a texture coordinate node and a Fresno for distortion Drag everything together like so set speed to one B to something like point zero seven and base refraction to something like two You're done Congratulations, you have now distorted the air around your thruster. Hope that helps and as always if you have a Fantastic day and I'll see you around