if(GL_EXT_framebuffer_object_supported)
{
m_fbo.bind();
glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT);
drawShapes();
GLFramebufferObject::disable();
}
else
{
glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport(0, 0, m_shapesTexSize, m_shapesTexSize);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(m_screen.getFov(), (GLfloat)m_shapesTexSize/(GLfloat)m_shapesTexSize, m_screen.getZNear(), m_screen.getZFar());
drawShapes();
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, m_shapesTexId);
glCopyTexImage2D( GL_TEXTURE_2D,
0,
GL_RGB,
0,
0,
m_shapesTexSize,
m_shapesTexSize,
0);
glViewport(0, 0, m_screen.getWidth(), m_screen.getWidth());
glMatrixMode(GL_PROJECTION);
glLoadIdentity ();
gluPerspective( m_screen.getFov(),
(GLfloat)m_screen.getWidth()/(GLfloat)m_screen.getWidth(),
m_screen.getZNear(),
m_screen.getZFar());
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_TEXTURE_2D);
} |
