Hi guys,

So, looking at this solution :

http://www.dissidentlogic.com/old/images/NormalOffsetShadows/GDC_Poster_NormalOffset.png

Diagram on the left - the cube (or square as it's shown in the diagram) shows the faces shifted along the normal, introducing gaps.

Gaps cause light leakage through them.

[edit]
From : https://www.gamedev.net/topic/665740-cant-fix-shadow-acne-with-bias

> You don't use the normal-offset approach at shadow map creation but when sampling the shadowmap.

Doh :)

Thanks, Daniel & unbird.

Best regards,
Steve.