csBox3 csReversibleTransform::This2Other (const csBox3 &box) const
{
if (m_t2o.IsIdentity())
{
csBox3 newBox (box);
newBox.SetCenter (This2Other (box.GetCenter()));
return newBox;
}
else
{
const csVector3 minA = box.Min ();
const csVector3 maxA = box.Max ();
csVector3 minB (v_o2t);
csVector3 maxB (v_o2t);
for (size_t i = 0; i < 3; ++i)
{
const csVector3 row = m_t2o.Row (i);
for (size_t j = 0; j < 3; ++j)
{
float a = row[j] * minA[j];
float b = row[j] * maxA[j];
if (a < b)
{
minB[i] += a;
maxB[i] += b;
}
else
{
minB[i] += b;
maxB[i] += a;
}
}
}
return csBox3 (minB, maxB);
}
}
void csMeshOnTexture::ScaleCamera (iMeshWrapper* mesh, int txtw, int txth)
{
UpdateView (txtw, txth);
const csBox3 mesh_box = mesh->GetWorldBoundingBox ();
const csVector3 mesh_center = mesh_box.GetCenter ();
const iPerspectiveCamera* camera = view->GetPerspectiveCamera ();
const float aspect = camera->GetFOV ();
const float shift_x = camera->GetShiftX ();
const float shift_y = camera->GetShiftY ();
int i;
float maxz = -100000000.0f;
for (i = 0 ; i < 8 ; i++)
{
csVector3 corner = mesh_box.GetCorner (i) - mesh_center;
float z = (corner.x * aspect) / (1.0f - shift_x);
if (z < 0) z = (corner.x * aspect) / (float (txtw) - shift_x);
z += corner.z;
if (z > maxz) maxz = z;
z = (corner.y * aspect) / (1.0f - shift_y);
if (z < 0) z = (corner.y * aspect) / (float (txth) - shift_y);
z += corner.z;
if (z > maxz) maxz = z;
}
csVector3 cam_pos = mesh_center;
cam_pos.z -= maxz;
for (i = 0 ; i < 8 ; i++)
{
csVector3 corner = mesh_box.GetCorner (i) - cam_pos;
csVector2 p = view->GetCamera()->Perspective (corner);
}
view->GetCamera()->GetTransform ().Identity ();
view->GetCamera()->GetTransform ().SetOrigin (cam_pos);
}