Hello , I have a problem with cascaded light maps . I used the method 2 days ago in my project , it worked perfectly .Today after I build the light , all dynamic shadow just dissapear . Nothing has been changed , I only updated to 4.4.2 . In a new map it still works .
Light is stationary , all objects have dynamic shadows turned on . I have no idea what to do here .
Infact all dynamic shadows are just gone , even when I set the light to movable there is nothing . Is there something I could have pressed or done to disable all dynamic shadows from showing ?
It’s not the option in the view port Show->Lighting components → Dynamic Shadows either . I really hope I don’t have to start over , I have alot of foliage painted that I’m guessing can’t be tranferred to a new map … :S
I’m bumping this, I need to do something I can’t start over. It seems only the directional light has this problem i removed everything from the level and put just two bsp brushes, still no dynamic shadows at all. Point light and spot light work fine. I wonder is there a way to get the 4.4.0 or 4.4.1 versions.
Hey Samuil -
Can you post a screenshot of your directional light’s details panels, so I can get a reference? Also what other, if any, lights do you have in the level?
Thank You
Eric Ketchum
This is it , one directional and one skylight , no other lights . I also tried to remove one by one every element in my map until I get the shadows to appear again . When I delete every single one of my object and add a new light + 2 new objects , the shadow just appears automatically . Other than directional lights do cast shadows even when in moveable , very strange issue . I already started building the map anew , I have my light set on moveable and check often If there is shadow from a test object I have placed . If this can be resolved it will still be great since I’ll know what to do in the future .
Thank !
Hey Samuil -
In the project that you have currently working, can you look at the directional light’s transformation settings and see if you have adjusted the scale setting?
Thank You
Eric Ketchum
Yes it was , I didn’t notice that . I changed both directional and skylight back to 1 scale and rebuild , didn’t work unfortunately .
Hey Samuil -
This is a tricky issue. Do you have a sample map that you would not mind sharing that has this issue? If you want to keep it private feel free to send me a link through PM on the fourms.
Let me know and I will continue my investigation in the meantime -
Eric Ketchum
Sure , here :
testMap_noshadows
This is a copy of the map I was working on , I copied it to a new project to test if the issue persists . It does . It has almost non of the assets and it’s not painted with lanscape mat or foliage , but it still has the same issue so I guess it can serve as an example . In the rar there is the umap file and a Terrain folder that I keep in the content folder of the project , in it there are some materials , textures and blueprints .
I appreciate the help ! I just whant to let you know I have made a new map and got it to where it was before , dynamic and cascaded shadows still work in it , I just hope it doesn’t happen again . Some insight to why it happen will help but it’s not a priority so don’t waste too much time with it . Thanks !
Hey Samuil -
I was able to get the fading to stop by switching the Light Source from Stationary to Movable and then back again and then building lighting. I do not know why that would be the case , but try it and see if you get the same behavior.
Thank You
Eric Ketchum
I tried that just now , and it didn’t work . I did it in a couple of different maps , I even got the copy I uploaded and put it into a new project (I assume thats what you did too) , I switched the light to movable , then back to stationary and rebuild , after that I tried to do it again just in case but this time I build lights with light set to movable then got it back to stationary and build again . The issue still persist , it is really a head scracher .
Hey Samuil -
I’ve run into a wall testing your level. It appears that everytime I attempt to save the engine crashes. How did you open the project and from what version of the engine did you initially create the assets? (So did you create this in 4.3 and convert in Place or Copy to go to 4.4.0?)
Thank You
Eric Ketchum
This map was initially created in 4.2 I think , then converted the project as copy to 4.3 then to 4.4 .
Hey Samuil -
I believe I have a solution for you. The area in which you are building lighting (where the Lightmass importance volume is encompassing) is an extreme distance from the 5km^2 world grid location. The only way I could get the Cascading Shadows to work again was by moving the Map such that the Lightmass Importance and the Lake area where back on the world grid. You can see what I am talking about if you go into Top View and look at the Grid location versus the location of the lake area.
I would try to keep my playable area as close to 0,0,0 as possible within that 5km range. If you need to do a much larger world, please look into the World Composition, World Composition in Unreal Engine | Unreal Engine Documentation
Thank You for your patience on this issue -
Eric Ketchum
Thank you , that great information . My new map that I recreated if much firther along now and thankfully this info will prevent that issue from happening again . This time the map is much more closer to the grid center , infact its almost in the middle of the lake . Thanks again for your time !