2010
02.26

Práctica 2 de IG (Parte 1)

Category: Programación, Universidad
Tag: , , , , 
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Modificando la primera práctica de la asignatura, se pide mostrar una serie de figuras y colores por pantalla.

001

001

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

glColor3f (0.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (-0.5f, -0.5f);
    glVertex2f (-0.5f, 0.5f);
    glVertex2f (0.5f, 0.5f);
    glVertex2f (0.5f, -0.5f);
glEnd();

glFlush();
002

002

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

glColor3f (0.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (-0.5f, -0.5f);
    glVertex2f (-0.5f, 0.5f);
    glVertex2f (0.5f, 0.5f);
    glVertex2f (0.5f, -0.5f);
glEnd();

glColor3f (0.0f, 0.0f, 1.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, -0.5f);
    glVertex2f (0.5f, 0.0f);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd();

glFlush();
003

003

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

glColor3f (0.0f, 0.0f, 1.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, -0.5f);
    glVertex2f (0.5f, 0.0f);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd ();

glColor3f (0.0f, 0.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (-0.5f, 0.5f);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd ();

glColor3f (1.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (0.5f, 0.5f);
    glVertex2f (0.5f, 0.0f);
glEnd ();

glColor3f (1.0f, 1.0f, 1.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.5f, 0.0f);
    glVertex2f (0.5f, -0.5f);
    glVertex2f (0.0f, -0.5f);
glEnd ();

glColor3f (0.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, -0.5f);
    glVertex2f (-0.5f, -0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd ();

glFlush();
004

004

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

glColor3f (0.0f, 0.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (-0.5f, 0.5f);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd ();

glColor3f (1.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, 0.5f);
    glVertex2f (0.5f, 0.5f);
    glVertex2f (0.5f, 0.0f);
glEnd ();

glColor3f (1.0f, 1.0f, 1.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.5f, 0.0f);
    glVertex2f (0.5f, -0.5f);
    glVertex2f (0.0f, -0.5f);
glEnd ();

glColor3f (0.0f, 1.0f, 0.0f);
glBegin (GL_POLYGON);
    glVertex2f (0.0f, -0.5f);
    glVertex2f (-0.5f, -0.5f);
    glVertex2f (-0.5f, 0.0f);
glEnd ();

glBegin (GL_POLYGON);
    glColor3f (0.0f, 1.0f, 0.0f);
    glVertex2f (0.5f, 0.0f);

    glColor3f (1.0f, 1.0f, 1.0f);
    glVertex2f (0.0f, 0.5f);

    glColor3f (1.0f, 1.0f, 0.0f);
    glVertex2f (-0.5f, 0.0f);

    glColor3f (0.0f, 0.0f, 0.0f);
    glVertex2f (0.0f, -0.5f);
glEnd ();

glFlush();
005

005

int i;

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

for (i = 5; i > 0; i--)
{
    if (i % 2 == 0)
        glColor3f (0.0f, 1.0f, 0.0f);
    else
        glColor3f (0.0f, 0.0f, 0.0f);

    glBegin (GL_POLYGON);
        glVertex2f (-0.5f, -0.5f);
        glVertex2f (-0.5f, (i - (5 - i))/10.0f);
        glVertex2f ((i - (5 - i))/10.0f, (i - (5 - i))/10.0f);
        glVertex2f ((i - (5 - i))/10.0f, -0.5f);
    glEnd();
}

glFlush();
006

006

int i;

glClearColor (1.0f, 0.0f, 0.0f, 0.0f);
glClear (GL_COLOR_BUFFER_BIT);

for (i = 5; i > 0; i--)
{
    if (i % 2 == 0)
        glColor3f (0.0f, 1.0f, 0.0f);
    else
        glColor3f (0.0f, 0.0f, 1.0f);

    glBegin (GL_POLYGON);
        glVertex2f (-0.5f - ((5 - i) * 0.025f),
                -0.5f - ((5 - i) * 0.025f));
        glVertex2f (-0.5f - ((5 - i) * 0.025f),
                (i - (5 - i))/10.0f);
        glVertex2f ((i - (5 - i))/10.0f,
                (i - (5 - i))/10.0f);
        glVertex2f ((i - (5 - i))/10.0f,
                -0.5f - ((5 - i) * 0.025f));
    glEnd();
}

glFlush();

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