stencil shadows

[Percival]

Sometimes when I'm using stencil shadows, some of the shadows start to flicker when moving the camera (it depends on the angle between the object and the light to see such efect). Any thoughts on that? How do I prevent such anomalies?

[sinbad]

The stencil volume is probably nearly coplanar with the geometry. Try to avoid situations where this happens over a large surface - it tends to happen more with directional than point lights, just position / angle your lights slightly differently.