# Specular intensity of non-metals(plastics) in metalness pbs workflow

The specular color in metalness/roughness workflow is usually defined as following:

float3 specColor = lerp(0.03f, albedoColor, metallic);


The Cook-Torrance BRDF is given with the following formula:

The final color will be:

Ci = (diffColor*(n.l)+Ks*specColor*cook);


My question is - won't specular be too dim for non-metals? Cook-Torrance term will be multiplied by 0.03 in case of dielectrics - this will make the specular component virtually non-existent. This doesn't seem realistic to me, because smooth plastic reflects a lot of light, almost as much as metals:

What am I missing?