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skankerror · 09-22-2010, 10:50 AM,

I think I need some C++ lessons, I've made this :

Code:
void GRAPHICS_SDLGL::BeginScene(std::ostream & error_output)

{

    glstate.Disable(GL_TEXTURE_2D);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glShadeModel( GL_SMOOTH );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClearColor(0,0,0,0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClearDepth( 1.0f );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.Enable(GL_DEPTH_TEST);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glDepthFunc( GL_LEQUAL );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST );

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.Disable(GL_LIGHTING);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glstate.SetColor(0.5,0.5,0.5,1.0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glPolygonOffset(-1.0,-1.0);

    OPENGL_UTILITY::CheckForOpenGLErrors;

    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    OPENGL_UTILITY::CheckForOpenGLErrors("BeginScene", error_output);

}

and when compiling :

Code:
src/graphics.cpp: In member function âvoid GRAPHICS_SDLGL::BeginScene(std::ostream&)â:

src/graphics.cpp:354: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:354: warning: statement has no effect

src/graphics.cpp:356: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:356: warning: statement has no effect

src/graphics.cpp:358: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:358: warning: statement has no effect

src/graphics.cpp:360: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:360: warning: statement has no effect

src/graphics.cpp:362: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:362: warning: statement has no effect

src/graphics.cpp:364: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:364: warning: statement has no effect

src/graphics.cpp:366: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:366: warning: statement has no effect

src/graphics.cpp:368: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:368: warning: statement has no effect

src/graphics.cpp:370: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:370: warning: statement has no effect

src/graphics.cpp:372: warning: statement is a reference, not call, to function âOPENGL_UTILITY::CheckForOpenGLErrorsâ

src/graphics.cpp:372: warning: statement has no effect

I stopped this cos I must be wrong...

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