bge GLSL shadow appeared at wrong position in 2.63

hello everyone! First…Gratings from Chinese new Year of Snake!
then the problem:eyebrowlift:------I’m doing a simple space-ship-landing game,but the shadow of the ship(the white one…) was not in the right position I want,just like the picture below…



in the picture above you can see that the feet of ship has already touched the ground, but the shadow------I think it should like the picture below(I paint it…), in which the shadow grows from the point where the feet of ship met the ground, however it doesn’t, I thought it a quite a strange problem and can anybody show me some hints about it???

Its because of the shadow bias, go for ‘0.1’ and it will be fine.

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Yeah! Nice work !!! thank you so much !!