Sometimes a texture I download has a reflective map, is there a way to use this in Three, or is reflectivity limited to a uniform float value?

An example is seen here

Screen Shot 2019-12-08 at 8.03.59 PM

Can you share what the texture looks like? At first I thought that this is an environment map, it could it be a modulation that just needs to be plugged in the right place? As in it could be akin to the roughness or specular maps.

There is already a gloss map, does this plug into specular?

Here’s the map, its almost non perceptive but you can JUST see the brick texture in there

I’ve included the color map in there so you have a reference point

Color

Reflective Map