// imitation of the Unreal Engine 1.x ambient glow effect

void SetupMaterial( inout Material mat )
{
	mat.Base = getTexel(vTexCoord.st);
	float glow = .25+.2*sin(timer*8.);
	mat.Bright = vec4(vec3(glow),1.);
	mat.Normal = ApplyNormalMap(vTexCoord.st);
}