protected Matrix transformModelView(Matrix modelView, IDelegateView view) {
if (disableHeadTransform) {
return modelView;
}
Vec4 translation = RiftUtils.toVec4(eyePoses[eye].Position);
double translationScale = getHeadTranslationScale(view);
Quaternion rotation = RiftUtils.toQuaternion(eyePoses[eye].Orientation);
Matrix translationM = Matrix.fromTranslation(translation.multiply3(-translationScale));
Matrix rotationM = Matrix.fromQuaternion(rotation.getInverse());
return rotationM.multiply(translationM.multiply(modelView));
}
@Override
public Matrix computeProjection(
IDelegateView view, Angle horizontalFieldOfView, double nearDistance, double farDistance) {
if (!shouldRenderForHMD()) {
return view.computeProjection(horizontalFieldOfView, nearDistance, farDistance);
}
return RiftUtils.toMatrix(
Hmd.getPerspectiveProjection(eyeFov[eye], (float) nearDistance, (float) farDistance, true));
}