void content()
{
extern bool SphereInFrustum (float,float,float,float);
glClear (GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
// extract frustum parameter of current camera
extern void ExtractFrustum();
ExtractFrustum();
int nshow = 0;
for (int i = 0; i < NSPHERES; i++) {
if (! cull || SphereInFrustum (pos[i][0], pos[i][1],pos[i][2], radius[i])) {
++nshow;
glPushMatrix();
glTranslatef (pos[i][0], pos[i][1], pos[i][2]);
glutSolidSphere (radius[i], 120,120);
glPopMatrix();
}
}
BEGIN_2D_OVERLAY (10,10);
glDisable(GL_LIGHTING);
glColor3f (1,1,0);
if (cull)
drawstr (1,1, "cull [%d|%d]", NSPHERES-nshow, NSPHERES);
else
drawstr (1,1, "no cull");
END_2D_OVERLAY();
content_count++;
glutSwapBuffers();
}
bool Frustum::Contains(const BoundingSphere& bs) const
{
#ifdef GEKKO
return true; // TODO Wii culling too much - fix this properly
#endif
if (bs.GetRadius() == 0)
{
//Engine::Instance()->ReportError("Bad Sphere radius.");
return true;
}
return SphereInFrustum(bs.GetCentre().x,
bs.GetCentre().y,
bs.GetCentre().z,
bs.GetRadius());
}
bool isBoundInFrustum(bound boundInfo) {
return SphereInFrustum(boundInfo.center, boundInfo.radius*1.5) > 0;
}
bool
CFrustum::SphereInFrustum( const CSphere & sphere ) const
{
return SphereInFrustum(sphere.GetPosition().x, sphere.GetPosition().y, sphere.GetPosition().z, sphere.GetRadius());
}