Why ray of light goes through wall?

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?

If the wall doesn't move, why not consider using static lights, as dark samurai already said.
[EDIT] he talked about realtime shadowmapping, my mistake!
Static lights are baked witth the map compiler and cast shadows.
Because you need no shaders fot this, They are also a lot faster than dynamic shadows!
For this you need to build your level with blocks in wed.

Thanks for your kind will to help, but dark samurai didn't write like this (quote from you)
Moreover, i don't use map compiler.

I don't need to build with blocks because i don't use WED.

actually did you read my post? http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=388687#Post388687

That solution is really really slow compared to other things I have seen. [Lightfrog, Shadows by Slin or Shade-C]

Actually i don't understand why did you cited my answer to Roel.

Actually i read your post and i have began to study that.
I am sorry why i didn't write this until this time.
You have to notice that, there are opinions about the slowness of that solution. Well, for all cases i do a try with that.

If it's slow try to use lights with lower resolution, the performance gain will be huge.

Shade-c doesn't support point lights atm and LightFrog doesn't work on A8. I tried to get ShadowCollectionV3 by Slin working but there is something wrong with them, I can't see a port of the screen:



If someone knows how to fix that please let me know

I just mean, that this solution is not really good for a game.

I would rather pay someone.

I searched the PSSM lighting shader in the manual, there is no hit. Only some reference to this shader.
Could you help me, where should i found this shader?