//----------------------------------------------------------------------------
void Update()
{
if (mOverridingCamera){
mOverridingCamera->Update();
}
// world coordinates (Blender style)
// x: right
// y: forward
// z: up
bool viewChanged = mViewPropertyChanged;
if (mViewPropertyChanged)
{
mViewPropertyChanged = false;
Vec3 right = mTransformation.GetMatrix().Column(0);
Vec3 forward = mTransformation.GetMatrix().Column(1);
Vec3 up = mTransformation.GetMatrix().Column(2);
const Vec3& pos = mTransformation.GetTranslation();
mMatrices[View] = fb::MakeViewMatrix(pos, right, forward, up);
mTransformation.GetHomogeneous(mMatrices[InverseView]);
mFrustum.mOrigin = mTransformation.GetTranslation();
mFrustum.mOrientation = mTransformation.GetRotation();
}
bool projChanged = mProjPropertyChanged;
if (mProjPropertyChanged)
{
mAspectRatio = GetWidth() / (Real)GetHeight();
mProjPropertyChanged = false;
if (!mOrthogonal)
{
mMatrices[ProjBeforeSwap] = mMatrices[Proj] =
MakeProjectionMatrix(mFov, mAspectRatio, mNear, mFar);
}
else
{
mMatrices[ProjBeforeSwap] = mMatrices[Proj] =
MakeOrthogonalMatrix((Real)mOrthogonalData.left, (Real)mOrthogonalData.top,
(Real)mOrthogonalData.right, (Real)mOrthogonalData.bottom,
mNear, mFar);
}
if (mYZSwap)
{
Mat44 swapMat(
1, 0, 0, 0,
0, 0, 1, 0,
0, 1, 0, 0,
0, 0, 0, 1);
mMatrices[Proj] = mMatrices[Proj] * swapMat;
}
mMatrices[InverseProj] = mMatrices[Proj].Inverse();
mFrustum.SetData(mNear, mFar, mFov, mAspectRatio);
}
if (projChanged || viewChanged)
{
mMatrices[ViewProj] = mMatrices[Proj] * mMatrices[View];
mMatrices[InverseViewProj] = mMatrices[ViewProj].Inverse();
UpdateFrustum();
if (viewChanged && !mSelf->mObservers_.empty()){
auto& observers = mSelf->mObservers_[TransformChanged];
for (auto it = observers.begin(); it != observers.end(); /**/){
auto observer = it->lock();
if (!observer){
it = observers.erase(it);
continue;
}
++it;
observer->OnViewMatrixChanged();
}
}
if (projChanged && !mSelf->mObservers_.empty()){
auto& observers = mSelf->mObservers_[TransformChanged];
for (auto it = observers.begin(); it != observers.end(); /**/){
auto observer = it->lock();
if (!observer){
it = observers.erase(it);
continue;
}
++it;
observer->OnProjMatrixChanged();
}
}
mRayCache.clear();
}
}
