Please tell me, what do i do wrong?
I put three objects into a level.
A. a spotlight
B. a wall
C. a crate
The wall is between A and C. If i turn/rotate the direction of the spot light (A) to C it will be illuminated.
It seems to me the ray of light from A goes through the wall (B).
Why?
My system is Win7, 3DGS 7.86 (latest) Comm. Edition.
Thanks in advance.

Dynamic lights have no collision detection in DirectX. You will have to use a shadow mapping technic (a shader) like PSSM for that.

I try to understand that you wrote. But i fear i did it.
Could you point out, where can be found this information in the manual? I would like to know more on this.

In this case, that you gave, how can be able the engine to generate shadows?
It seems to me there is an inconsistency here.

There is no inconsistency. PSSM is a shader that handles dynamic world lighting and shadowing. By default, Gamestudio cannot cast dynamic shadows from world geometry.

I use stencil shadows. This is a built-in shader, if GS cannot cast dynamic shadows. Am i right?
What/Which shader should i use and how to get correct lighting on a level entity surface when it illuminated by an dynamic spot light and when it isnt illuminated?

Stencil shadows are only cast from entities. As I said, by default Gamestudio cannot cast dynamic shadows from world geometry.


Use a proper lighting shader like PSSM.

you can also take a look at this shadowmapping solution: http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=388687#Post388687

In terms of shadow-support , gamestudio is a poor mans choice.
Especially if someone does not know the engine for quite some time.

Thanks for the proposal.
Unfortunately my project uses indoor levels.
Could you propose another shader for that?