Boneheaded approach to fixing normal map mip seams

Content/core/shaders/pbr.mshdr

@@ -196,6 +196,11 @@ Fragment
 		return texture( target, vs_out.vTexCoord.xy ).rgb;
 	}
 
+	vec3 sampleLod( sampler2D target )
+	{
+		return textureLod( target, vs_out.vTexCoord.xy, 0 ).rgb;
+	}
+
 	float luminance(vec3 v)
 	{
 		return dot(v, vec3(0.2126f, 0.7152f, 0.0722f));
@@ -216,7 +221,7 @@ Fragment
 		float roughness = sampleTexture( roughnessTexture ).r;
 		float ao = sampleTexture( ambientOcclusionTexture ).r;
 
-		vec3 vNormalTS = sampleTexture( normalTexture );
+		vec3 vNormalTS = sampleLod( normalTexture );
 		vNormalTS = normalize( vNormalTS * 2.0 - 1.0 );
 
 		vec3 viewDir = normalize( vs_out.vCameraTS - vs_out.vPositionTS );