Material colors ( ambient, diffuse, specular ) should now be used when there's no texture available.

--HG--
branch : gsoc2013-dfighter

code/nel/src/3d/driver/opengl3/driver_glsl_shader_generator.cpp

@@ -183,6 +183,13 @@ namespace NL3D
 		}
 		ss << std::endl;
 
+		if( !desc->useTextures() )
+		{
+			addAmbient();
+			addDiffuse();
+			addSpecular();
+		}
+
 		switch( material->getShader() )
 		{
 		case CMaterial::Normal:
@@ -264,11 +271,21 @@ namespace NL3D
 		ps.assign( ss.str() );
 	}
 
+	void CGLSLShaderGenerator::addAmbient()
+	{
+		ss << "uniform vec4 ambientColor;" << std::endl;
+	}
+
 	void CGLSLShaderGenerator::addDiffuse()
 	{
 		ss << "uniform vec4 diffuseColor;" << std::endl;
 	}
 
+	void CGLSLShaderGenerator::addSpecular()
+	{
+		ss << "uniform vec4 specularColor;" << std::endl;
+	}
+
 	void CGLSLShaderGenerator::addColor()
 	{
 		ss << "uniform vec4 materialColor;" << std::endl;
@@ -435,9 +452,20 @@ namespace NL3D
 		ss << "vec3 normal3 = vnormal.xyz / vnormal.w;" << std::endl;
 		ss << "normal3 = normalMatrix * normal3;" << std::endl;
 		ss << "normal3 = normalize( normal3 );" << std::endl;
-		ss << "vec4 lc = getIntensity" << num << "( normal3, lightDir ) * light" << num << "ColDiff + ";
+
-		ss << "getSpecIntensity" << num << "( normal3, lightDir ) * light" << num << "ColSpec + ";
+		if( desc->useTextures() || ( material->getShader() == CMaterial::LightMap ) )
-		ss << "light" << num << "ColAmb;" << std::endl;
+		{
+			ss << "vec4 lc = getIntensity" << num << "( normal3, lightDir ) * light" << num << "ColDiff + ";
+			ss << "getSpecIntensity" << num << "( normal3, lightDir ) * light" << num << "ColSpec + ";
+			ss << "light" << num << "ColAmb;" << std::endl;
+		}
+		else
+		{
+			ss << "vec4 lc = getIntensity" << num << "( normal3, lightDir ) * light" << num << "ColDiff * diffuseColor + ";
+			ss << "getSpecIntensity" << num << "( normal3, lightDir ) * light" << num << "ColSpec * specularColor + ";
+			ss << "light" << num << "ColAmb * ambientColor;" << std::endl;
+		}
+
 		ss << "return lc;" << std::endl;
 		ss << "}" << std::endl;
 		ss << std::endl;
@@ -480,9 +508,18 @@ namespace NL3D
 		ss << "normal3 = normalMatrix * normal3;" << std::endl;
 		ss << "normal3 = normalize( normal3 );" << std::endl;
 
-		ss << "vec4 lc = getIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColDiff + ";
+		if( desc->useTextures() || ( material->getShader() == CMaterial::LightMap ) )
-		ss << "getSpecIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColSpec + ";
+		{
-		ss << "light" << num << "ColAmb;" << std::endl;
+			ss << "vec4 lc = getIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColDiff + ";
+			ss << "getSpecIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColSpec + ";
+			ss << "light" << num << "ColAmb;" << std::endl;
+		}
+		else
+		{
+			ss << "vec4 lc = getIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColDiff * diffuseColor+ ";
+			ss << "getSpecIntensity" << num << "( normal3, lightDirection ) * light" << num << "ColSpec * specularColor + ";
+			ss << "light" << num << "ColAmb * ambientColor;" << std::endl;
+		}
 
 		ss << "lc = lc / attenuation;" << std::endl;
 		ss << "return lc;" << std::endl;

code/nel/src/3d/driver/opengl3/driver_glsl_shader_generator.h

@@ -47,9 +47,15 @@ namespace NL3D
 		void setShaderDesc( CShaderDesc *d ){ desc = d; }
 
 	private:
+		/// Adds ambient color constant uniform declaration to the program
+		void addAmbient();
+
 		/// Adds diffuse constant uniform declaration  to the program
 		void addDiffuse();
 
+		/// Adds specular color constant uniform declaration to the program
+		void addSpecular();
+
 		/// Adds Color constant uniform declaration to the program
 		void addColor();
 

code/nel/src/3d/driver/opengl3/driver_opengl_program.cpp

@@ -494,6 +494,8 @@ namespace NL3D
 
 		if( mat.getShader() == CMaterial::Normal )
 		{
+			bool useTextures = false;
+
 			int maxTextures = std::min( int( SHADER_MAX_TEXTURES ), int( IDRV_MAT_MAXTEXTURES ) );
 			for( int i = 0; i < maxTextures; i++ )
 			{
@@ -505,10 +507,11 @@ namespace NL3D
 				if( desc.hasVBFlags( vertexFlags[ TexCoord0 + i ] ) )
 				{
 					desc.setUseTexStage( i, true );
+					useTextures = true;
 				}
 			}
 
-			if( !desc.getUseTexStage( 1 ) )
+			if( useTextures && !desc.getUseTexStage( 1 ) )
 			{
 				for( int i = 1; i < maxTextures; i++ )
 				{
@@ -519,6 +522,11 @@ namespace NL3D
 					}
 				}
 			}
+			else
+			if( !useTextures )
+			{
+				desc.setNoTextures( true );
+			}
 		}
 
 		if( mat.getAlphaTest() )

code/nel/src/3d/driver/opengl3/driver_opengl_shader_desc.h

@@ -95,6 +95,7 @@ namespace NL3D
 			for( int i = 0; i < SHADER_MAX_TEXTURES; i++ )
 				useTextureStage[ i ] = false;
 			useFirstTextureCoordSet = false;
+			noTextures = true;
 			
 			features = None;
 			shaderType = Normal;
@@ -110,6 +111,9 @@ namespace NL3D
 
 		bool operator==( const CShaderDesc &o ) const
 		{
+			if( noTextures != o.noTextures )
+				return false;
+
 			if( shaderType != o.shaderType )
 				return false;
 
@@ -169,6 +173,9 @@ namespace NL3D
 		void setUseTexStage( uint8 stage, bool b ){ useTextureStage[ stage ] = b; }
 		bool getUseTexStage( uint8 stage ) const{ return useTextureStage[ stage ]; }
 
+		void setNoTextures( bool b ){ noTextures = b; }
+		bool useTextures() const{ return !noTextures; }
+
 		void setVBFlags( uint32 flags ){ vbFlags = flags; }
 		bool hasVBFlags( uint32 flags ) const{
 			if( ( vbFlags & flags ) != 0 )
@@ -254,6 +261,7 @@ namespace NL3D
 		uint32 texEnvMode[ SHADER_MAX_TEXTURES ];
 		bool useTextureStage[ SHADER_MAX_TEXTURES ];
 		bool useFirstTextureCoordSet;
+		bool noTextures;
 		uint32 vbFlags;
 		uint32 shaderType;
 		uint32 nlightmaps;