diff --git a/README.md b/README.md
index a80d8a7..62dd312 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,10 @@ check USE_PERSPECTIVE_PROJECTION flag in CurlRenderer.
 
 ToDo
 ====
-* Adjust fake soft shadow calculation. It's an endless road..
+* Adjust fake soft shadow calculation. Current 'Drop shadow', cast behind curl, implementation
+is not exactly what one wants necessarily. It might be better strategy to leave some 'softness'
+for situations in which radius is close to zero. Currently it means show is decreased to
+non-existent. Well, that's how shadows work, but considering from usability side..
 * Add some details to make it a bit more book alike.
 
 Some details