// imitation of the Unreal Engine 1.x bMeshEnviroMap effect, not 1:1 but gets close
//  +
// imitation of the Unreal Engine 1.x ambient glow effect
// with the addition of a mask for blending the environment map with the base texture
void SetupMaterial( inout Material mat )
{
	vec4 base = getTexel(vTexCoord.st);
	float mask = texture(masktex,vTexCoord.st).x;
	vec3 eyedir = normalize(uCameraPos.xyz-pixelpos.xyz);
	vec3 norm = reflect(eyedir,normalize(vWorldNormal.xyz));
	mat.Base = vec4(base.rgb+texture(envtex,norm.xz*.5+.5).rgb*mask,base.a);
	float glow = .25+.2*sin(timer*8.);
	mat.Bright = vec4(vec3(glow),1.);
	mat.Normal = ApplyNormalMap(vTexCoord.st);
	mat.Normal = ApplyNormalMap(vTexCoord.st);
}