Homebrew Others Homebrew game Libnds: making the ground/floor

[ivodesmedt]

Hello,
How does one make a (large) ground plane in libnds? I have tried making a very large GL_QUAD at height y=0 like this:

glBegin(GL_QUADS);

glColor3f(1, 0, 0);

glVertex3f(-30, 0, -30);
glVertex3f(-30, 0, 30);
glVertex3f(30, 0, -30);
glVertex3f(30, 0, 30);

glEnd();

But it does not look good. Can anyone offer an alternative or a suggestion?
Thanks in advance