Hi, i'm trying to do a 'heat' effect, but i want to make a continuous movement of it (not a loop, but a almost linear movement) by choosing the options i only get distortions that advance in time but does not keep the same continuous movement, which is the best option to do it? or is there any other option besides turbulent displace option?
Thanks in advance
What options? Simply animate the position offset. Beyond that you can of course create your own patterns using the Displacement effect or whatever.
You might not care about the physics but google Schlieren imaging. Heat displacement is an optical distortion, similar to aberrations caused by a lens. It's often mistakenly simulated as a blur.
Displacement Map and Compound Blur together might do well (you'll have to have a precomp containing a layer with Fractal Noise to drive both effects).
Alternatively, Video Copilot has a nice heat distortion plugin.