void MaterialAsset::__loadShaderToGFXCard( void )
{
if ( !__isShaderLoaded )
{
GLuint VertexShaderID = glCreateShader( GL_VERTEX_SHADER );
GLuint FragmentShaderID = glCreateShader( GL_FRAGMENT_SHADER );
Resources* r = DWIngine::singleton()->resources();
string fragSource = r->getFragmentShader( __fragmentShaderUniqueName )->sourceCode( );
string vertexSource = r->getVertexShader( __vertexShaderUniqueName )->sourceCode();
int Result = GL_FALSE;
int InfoLogLength;
char const* VertexSourcePointer = vertexSource.c_str();
//Compile the Vertex Shader
glShaderSource( VertexShaderID, 1, &VertexSourcePointer, NULL );
glCompileShader( VertexShaderID );
glGetShaderiv( VertexShaderID, GL_COMPILE_STATUS, &Result );
glGetShaderiv( VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength );
if ( InfoLogLength > 0 )
{
std::vector<char> VertexShaderErrorMessage( InfoLogLength + 1 );
glGetShaderInfoLog( VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[ 0 ] );
DWIngine::singleton()->logError( &VertexShaderErrorMessage[0] );
}
//Compile the Fragment Shader
char const * FragmentSourcePointer = fragSource.c_str();
glShaderSource( FragmentShaderID, 1, &FragmentSourcePointer, NULL );
glCompileShader( FragmentShaderID );
glGetShaderiv( FragmentShaderID, GL_COMPILE_STATUS, &Result );
glGetShaderiv( FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength );
if ( InfoLogLength > 0 )
{
std::vector<char> FragmentShaderErrorMessage( InfoLogLength + 1 );
glGetShaderInfoLog( FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[ 0 ] );
DWIngine::singleton( )->logError( &FragmentShaderErrorMessage[ 0 ] );
}
GLuint ProgramID = glCreateProgram();
glAttachShader( ProgramID, VertexShaderID );
glAttachShader( ProgramID, FragmentShaderID );
glLinkProgram( ProgramID );
glGetProgramiv( ProgramID, GL_LINK_STATUS, &Result );
glGetProgramiv( ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength );
if ( InfoLogLength > 0 )
{
std::vector<char> ProgramErrorMessage( InfoLogLength + 1 );
glGetProgramInfoLog( ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[ 0 ] );
DWIngine::singleton()->logError( &ProgramErrorMessage[ 0 ] );
}
glDeleteShader( VertexShaderID );
glDeleteShader( FragmentShaderID );
__shaderProgramID = ProgramID;
__shaderMatrixID = glGetUniformLocation( ProgramID, "MVP" );
__shaderViewID = glGetUniformLocation( ProgramID, "V" );
__shaderModelID = glGetUniformLocation( ProgramID, "M" );
__textureShaderID = glGetUniformLocation( ProgramID, "TextureSampler" );
__shaderLightPos = glGetUniformLocation( ProgramID, "LightPosition_worldspace" );
__isShaderLoaded = !__isShaderLoaded;
}
}
