heat wave effect


what kind of method can i use to do heat wave effect? I did heat distortion effect (which is coming from fire barrel or other static heat sources), but not sure about heat wave coming from explosion. Any idea?

thanks in advance

You can use screen space deformation for this, as it shouldn’t long enough time for the user to move and see it’s actually done screenspace.

In object space, you’d have to go through a refract sphere.