Shadow Strength

Radek_HART · January 8, 2016, 9:22am

Hello, all,

I have two questions about shadows:

Is there any way for settings intensity of shadows (like Strength parameter in Unity)?
If I have any object with transparent material (i.e. glass), created shadow is fully black. Is possible improve it ?

Thanks.
Radek

max · January 8, 2016, 2:19pm

Regarding shadow strength, could you please describe what it does?

Regarding transparent object, unfortunately technique with semi-transparent shadow-casters is not implemented yet. It does complicates shadow casting quiet a bit, and rarely been required.
Currently alpha is used to define alpha test like for foliage, but it is again “binary” instead of partial shadow casting.

Tom_Bruyneel · January 12, 2016, 6:10pm

Wouldn’t the intensity setting of the light control the “intensity” of the shadow?

max · January 12, 2016, 6:31pm

Light intensity affects only what light illuminates, everything within shadow - is just not illuminated, so not affected.

Radek_HART · January 13, 2016, 8:30am

Hello Max, thank you for answer. On the picture is example of Shadow Strength parameter in Unity. This Parameter is availeble in Light settings.

Is possible reduce strength of black shadow in PC ?

Tom_Bruyneel · January 13, 2016, 9:24am

Looks a bit like the shadowDarkness setting from three.js

Mr_F · January 13, 2016, 2:41pm

In Unity shadow strength is per-light, not per-object, therefore it can’t be used to simulate semitransparent shadows from non-opaque objects (unless ALL shadow casters visible for this light are semitransparent). How would you use shadow strength?