josh/sierpinski-gtk
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fixed display problem with gluPerspective() (aspect ratio doing integer division)

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git-svn-id: svn://anubis/misc/sierpinski-gtk@249 bd8a9e45-a331-0410-811e-c64571078777
This commit is contained in:
josh 2010-10-21 21:01:00 +00:00
parent 6ab808e73a
commit 78734bad16
2 changed files with 6 additions and 12 deletions
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14
SierpinskiDA.cc
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@ -65,22 +65,14 @@ bool SierpinskiDA::draw()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, get_width()/get_height(), 0.01, 1000.0);
gluPerspective(60, get_width()/(double)get_height(), 0.01, 1000.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0, -2, 0,
0, 0, 0,
gluLookAt(0, -3, 1,
0, 0, 0.7,
0, 0, 1);
glCallList(m_dl);
glBegin(GL_QUADS);
glColor3f(1, 1, 1);
glNormal3f(0, -1, 0);
glVertex3f(1, 0, 1);
glVertex3f(-1, 0, 1);
glVertex3f(-1, 0, -1);
glVertex3f(1, 0, -1);
glEnd();
if (get_gl_window()->is_double_buffered())
get_gl_window()->swap_buffers();

4
sierpinski-gtk.cc
View File

@ -34,7 +34,7 @@ int main(int argc, char * argv[])
}
Gtk::Window mw;
mw.set_default_size(400, 500);
mw.set_default_size(400, 420);
Gtk::VBox vbox;
SierpinskiDA da(glconfig);
@ -43,4 +43,6 @@ int main(int argc, char * argv[])
mw.show_all();
Gtk::Main::run(mw);
return 0;
}