Render to texture and stencil shadow

[Viz_Fuerte]

Hi.

In OpenGL...

Surely you know that when rendering to a texture and select the stencil shadow, texture is darker with the same color shadow.

The only solution I see is to modify the code for the Irrlicht.

You know any solution less aggressive?

I have read several old post but is not a good solution.
only gives you the option of using the system of shadows of BlindSide, the Xeffect.