void PCamera::setViewport(pfloat32 x, pfloat32 y, pfloat32 width, pfloat32 height)
{
m_viewport = pVector4(x, y, width, height);
switch (m_projection.projection())
{
case P_PROJECTION_PERSPECTIVE:
{
pfloat32 aspect = width / height;
m_projection.perspective(m_projection.fov(),
aspect,
m_projection.zNear(),
m_projection.zFar());
}
break;
case P_PROJECTION_ORTHOGONAL:
{
pfloat32 aspect = width / height;
m_projection.orthogonal(aspect,
m_projection.zNear(),
m_projection.zFar());
}
break;
case P_PROJECTION_WINDOW:
m_projection.window(width, height);
break;
default:
PASSERT_NOTREACHABLE("Unknown projection type.");
break;
}
}
PBackground::PBackground(const pchar *name, PScene *scene)
: PDrawable(name, scene, P_DRAWABLE_PRIORITY_DRAWLAST)
{
P_OBJECT_INITIALIZE_PROPERTY(PDrawable)
PResourceManager *resourceManager = scene->context()->module<PResourceManager>("resource-manager");
m_texture = P_NULL;
setGeometry(PNEW(PGeometryPlane(resourceManager)));
setMaterial(PNEW(PMaterial("internal/background.pmt", PBACKGROUND_PMT, false, resourceManager)));
m_textureInfo = pVector4(1, 1, 0, 0);
m_sizeInfo = pVector4(1, 1, 0, 0);
m_layout = (LAYOUT_CENTER | LAYOUT_MIDDLE);
m_dirty = true;
}
void PCamera::oblique(const PPlane &plane)
{
PMatrix4x4 inversedProjection = m_projection.toInversedMatrix4x4();
PVector4 q = inversedProjection * pVector4(pSign(plane.A()), pSign(plane.B()), 1.0f, 1.0f);
PVector4 c = plane.toVector4() * 2.0f * (1.0f / (plane.toVector4().dot(q)));
// New projection matrix.
PMatrix4x4 proj = m_projection.toMatrix4x4();
proj.m_m[2] = c[0] - proj.m_m[3];
proj.m_m[6] = c[1] - proj.m_m[7];
proj.m_m[10] = c[2] - proj.m_m[11];
proj.m_m[14] = c[3] - proj.m_m[15];
m_projection.setMatrix4x4(proj.m_m);
}