This question was closed Oct 23, 2014 at 09:05 PM by primus88 for the following reason:

The question is answered, right answer was accepted

Question by primus88 · Oct 23, 2014 at 08:46 AM · optimization frames

Why such a big FPS drop?

I have a simple plain with a triplanar texture on it and 200 models in the scene. Activating the shadows on the directional light, basically destroys the FPS, taking it from 60+ to 25-28 FPS...

The even stranger thing is this:

-if I disable all the models in the scene and I leave only the plane and the direcitonal light with shadows, the FPS still remains low (maybe only a 3-4 FPS increase)

-if I disable the plane with the triplanar texture the FPS boosts back to 60+

-If I disable the shadows, same thing, FPS back to 60+

The triplanar script is from an assetstore pack that works very well in it's scene.

What could be the problem here?

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Tanshaydar · Oct 23, 2014 at 12:11 PM 1

It may be due to all objects are casting shadows to your triplanar plane. Can you uncheck the box "Receive Shadows" of triplanar plane to see if that is the real problem?