Normalize normals when they are used to get more precision

data/shaders/normalmap.frag

@@ -16,7 +16,5 @@ void main()
 	vec3 Frag_bitangent = cross(Frag_normal, Frag_tangent);
 
 	vec3 FragmentNormal = TS_normal.x * Frag_tangent + TS_normal.y * Frag_bitangent - TS_normal.z * Frag_normal;	
-	FragmentNormal = normalize(FragmentNormal);
-	
-	Normal = 0.5 * FragmentNormal + 0.5, gl_FragCoord.z;
+	Normal = 0.5 * FragmentNormal + 0.5;
 }

data/shaders/object_pass1.frag

@@ -4,5 +4,5 @@ out vec3 Normal;
 
 void main(void)
 {
-    Normal = 0.5 * normalize(nor) + 0.5;
+    Normal = 0.5 * nor + 0.5;
 }

data/shaders/objectref_pass1.frag

@@ -9,6 +9,6 @@ void main() {
 	vec4 col = texture(tex, uv);
 	if (col.a < 0.5)
 		discard;
-	Normal = 0.5 * normalize(nor) + 0.5;
+	Normal = 0.5 * nor + 0.5;
 }
 

data/shaders/pointlight.frag

@@ -16,8 +16,7 @@ out vec4 Specular;
 void main() {
 	vec2 texc = uv;
 	float z = texture(dtex, texc).x;
-	vec3 norm = texture(ntex, texc).xyz;
-	norm = (norm - 0.5) * 2.0;
+	vec3 norm = normalize(2. * texture(ntex, texc).xyz - 1.);
 
 	vec4 xpos = 2.0 * vec4(texc, z, 1.0) - 1.0f;
 	xpos = invproj * xpos;

data/shaders/sunlight.frag

@@ -28,8 +28,7 @@ void main() {
 		return;
 	}
 
-	vec3 norm = texture(ntex, uv).xyz;
-	norm = (norm - 0.5) * 2.0;
+	vec3 norm = normalize(2. * texture(ntex, uv).xyz - 1.);
 
 	// Normalized on the cpu
 	vec3 L = direction;