How to Render the Shadow

/* Render 50% black shadow color on top of whatever

the floor appearance is. */

glEnable(GL_BLEND);

glBlendFunc(GL_SRC_ALPHA,

GL_ONE_MINUS_SRC_ALPHA);

glDisable(GL_LIGHTING); /* Force the 50% black. */

glColor4f(0.0, 0.0, 0.0, 0.5);

glPushMatrix();

/* Project the shadow. */

glMultMatrixf((GLfloat *) floorShadow);

drawDinosaur();

glPopMatrix();