Material Transparency and Shadows

[bward]

I would like to make a vertical sun shade have transparency of 25%. In effect it is translucent. When I do this, I loose the ability for the material to cast a shadow. I am not rendering this, only using the constant colors option. Can this be done and if so, how?

[Lance.Coffey · Accepted solution]

I found the following thread discussing this:

http://forums.augi.com/showthread.php?113482-transparent-massing-casting-shadows

Currently, if there is transparency applied to an element, it does not cast shadows in plan views (although it will cast shadows when rendered).

[ToanDN]

Apparently it is still the case in 2016.  1% transparency and zero shadow in Hidden or Shade visual style.