Main. cpp

# Include <windows. h>
# Include <Gl/Gl. h>
# Include <Gl/Glaux. h>

Void myinit (void );
Void callback display (void );
Void callback reshape (glsizei W, glsizei H );

Void myinit (void)
{
Auxinitdisplaymode (aux_double | aux_rgba );
Auxinitposition (0, 0, 500,500 );
Auxinitwindow ("sample1 ");
Glclearcolor (0.0, 0.0, 0.0, 0.0 );
Glclear (gl_color_buffer_bit );
// Glshademodel (gl_flat );

// First define a material. The definition method is similar to the light source definition mentioned above.
Glfloat mat_ambient [] = {0.8, 0.8, 0.8, 1.0 };
// Define the purple Diffuse Reflection Feature
Glfloat mat_diffuse [] = {0.8, 0.0, 0.8, 1.0 };
// Define the bright purple mirror reflection characteristics
Glfloat mat_specular [] = {1.0, 0.0, 1.0, 1.0 };
// Define the brightness of the mirror reflection
Glfloat mat_shininess [] ={ 50.0 };
// Apply the above material definition
Glmaterialfv (gl_front, gl_ambient, mat_ambient );
Glmaterialfv (gl_front, gl_diffuse, mat_diffuse );
Glmaterialfv (gl_front, gl_specular, mat_specular );
Glmaterialfv (gl_front, gl_shininess, mat_shininess );

// Here we simplify the light source to show the material effect.
// Here, we only specify the position of the light source. Other Default values: white light source.
// You can also add the definition of the light source to see the effect of the combination of the light source and material.
// It is precisely because they can be combined to produce more results than real life, which is exactly
// The charm of 3D technology.
Glfloat light_position [] = {1.0, 1.0, 1.0, 0.0 };
Gllightfv (gl_light0, gl_position, light_position );
// Glfloat light_diffuse [] = {0.0, 0.0, 1.0, 1.0 };
// Gllightfv (gl_light0, gl_diffuse, light_diffuse );

// Apply the light source settings
Glable (gl_lighting );
Glable (gl_light0 );

// Shade
// * In fact, Bai le, this is the famous Z-BUFFER ah ************//
Gldepthfunc (gl_less );
Glenable (gl_depth_test );
}

Void callback reshape (glsizei W, glsizei H)
{
Glviewport (0, 0, W, H );
Glmatrixmode (gl_projection );
Glloadidentity ();
If (W <= H)
Glortho (-2.0, 2.0,-2.0 * (glfloat) h/(glfloat) W,
2.0 * (glfloat) h/(glfloat) W,-10.0, 10.0 );
Else
Glortho (-2.0 * (glfloat) h/(glfloat) W,
2.0 * (glfloat) h/(glfloat) W,-2.0, 2.0,-10.0, 10.0 );

Glmatrixmode (gl_modelview );
Glloadidentity ();
}

Void draw (void)
{
Auxsolidsphere (1.0 );
}

Void callback display (void)
{
Glclear (gl_color_buffer_bit | gl_depth_buffer_bit );

Glloadidentity ();
Draw ();
Glflush ();
}
Void main (void)
{
Myinit ();

Auxreshapefunc (reshape );
Auxmainloop (Display );
}