Added lighting to the specular shader.

--HG--
branch : gsoc2013-dfighter

code/nel/src/3d/driver/OpenGL3/driver_glsl_shader_generator.cpp

@@ -601,10 +601,29 @@ namespace NL3D
 		ss << "uniform mat4 mvMatrix;" << std::endl;
 		ss << "uniform mat4 texMatrix0;" << std::endl;
 		ss << "smooth out vec3 cubeTexCoords;" << std::endl;
+
+		if( desc->fogEnabled() || desc->hasPointLight() )
+		{
+			ss << "vec4 ecPos4;" << std::endl;
+		}
+		
 		if( desc->fogEnabled() )
 			ss << "smooth out vec4 ecPos;" << std::endl;
 		ss << std::endl;
 
+		if( desc->lightingEnabled() )
+		{
+			addNormalMatrix();
+			addLightUniformsVS();
+			addLightOutsVS();
+			ss << std::endl;
+
+			addNormalFromMVFunction();
+
+			addLightsFunctionVS();
+			ss << std::endl;
+		}
+
 		ss << "vec3 ReflectionMap( const in vec3 eyePos, const in vec3 normal )" << std::endl;
 		ss << "{" << std::endl;
 		ss << "vec3 u = normalize( eyePos );" << std::endl;
@@ -616,6 +635,12 @@ namespace NL3D
 		ss << "{" << std::endl;
 		ss << "vec4 eyePosition = mvMatrix * v" << attribNames[ 0 ] << ";" << std::endl;
 
+		if( desc->lightingEnabled() )
+			ss << "calcNMFromMV();" << std::endl;
+
+		if( desc->hasPointLight() )
+			ss << "ecPos4 = eyePosition;" << std::endl;
+		
 		if( desc->fogEnabled() )
 			ss << "ecPos = eyePosition;" << std::endl;
 
@@ -627,6 +652,9 @@ namespace NL3D
 		ss << "cubeTexCoords = t.xyz;" << std::endl;
 		ss << "gl_Position = mvpMatrix * v" << attribNames[ 0 ] << ";" << std::endl;
 
+		if( desc->lightingEnabled() )
+			addLightsVS();
+
 		for( int i = Weight; i < NumOffsets; i++ )
 		{
 			if( hasFlag( vbFormat, vertexFlags[ i ] ) )
@@ -1282,9 +1310,18 @@ namespace NL3D
 		ss << "uniform samplerCube sampler1;" << std::endl;
 		addDiffuse();
 		addAlphaTreshold();
-
 		addFogUniform();
 
+		if( desc->lightingEnabled() )
+		{
+			addLightUniformsFS();
+			addLightInsFS();
+			ss << std::endl;
+			
+			addLightsFunctionFS();
+			ss << std::endl;
+		}
+
 		if( desc->fogEnabled() )
 			ss << "smooth in vec4 ecPos;" << std::endl;
 
@@ -1304,6 +1341,9 @@ namespace NL3D
 		ss << "texel.a = texel1.a;" << std::endl;
 		ss << "fragColor = texel;" << std::endl;
 
+		if( desc->lightingEnabled() )
+			addLightsFS();
+		
 		if( desc->fogEnabled() )
 			addFog();