I would use a Render target and a dense plane for that. Have a Look at the content examples There is one you can use and adjust to your needs
Hello,
I’m wanting to make/generate Heat Maps as I’m about to test some levels and I’d like to see where players go when they’re in the game.
My question is, how do you do that? I’ve seen one tutorial but that doesn’t seem to work for me. Other than that, there’s nothing out there.
Does anyone have any methods of generating Heat Maps?
Hi @BlueMind Studio,
Thanks for replying. Where can I find the content examples?
You can download it through the Epic Launcher → under the Learn tab → it’s the first item under the Engine Feature Samples section.
Yes, Look for Something “Draw to Render target” as I remember. It geht’s you startet-you can Draw heightmaps in the Demo when i’m right. For Out Case - Basically you get the Players positions every Tick and use that as a Material parameter to Draw to a RGB Channel. In the Material you can then use a multi blend and depending in the amount blend in Green, yellow, Red. This should have you the Desiree result in runtime. Next Thing you need to Figuren Out is how you can save that Out of the Game or persist in a Database 
Hope IT helps you
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Thanks @m_foda & @BlueMind Studio
So I kinda got Heat Maps to work, however when I walk on a plane that draws the Heat Map lines, it only seems to register on one side of the plane and not all over it as I hoped it would.
Anyone got any clues why this may be happening? because in the RenderTarget, I’ve put on ‘Clamp’ settings to address X and Y.
experiencing the same issue, did you ever solve it?