Firstly thank any one who answer this question.
My problem is as follow:
I make a ios project and build light for my level.Then I find shadow disappear when I change camera rotation.
in this picture, we can see shadows normally. Then I change my camera rotation(location is as before),the shadow disappear, like this:
It seems that only in certain range rotation , can we see shadows…
I am out of idea , please give me some advices.
thank you so much.