Hello, I’m having some sort material issue. I have created BSP geometry and applied materials from starter content pack to its surfaces and everything was fine. But after I restarted the editor I’ve got some of surfaces being missing in editor in “lit” and “detail lighting” modes, I can even select other objects through those missing surfaces. Unlit mode is not affected by this and all surfaces shown while I’m in “unlit” mode. No surfaces missing when I Play in editor too.
Going to unlit mode, selecting any(missing or not) surface and reapplying for example texture scale makes all missing faces reappear. But if I save and restart editor all those face disappear again.
Hi heme3ic -
It looks from your pictures that the missing BSP surfaces are all using the same Material, can you let me know exact which Starter Content Material it is?
Thank You
Eric Ketchum
No, they are not the same, the one on the “path” is M_Concrete_Tiles, and the one on “columns” sorry, is not from “starter pack” but from “GameTextures Material Pack” available on Market is called “Concrete_FlatSurface”.
I also previously had ground plane missing instead of path one, when ground was using grass texture from Starter Pack, but i completely replaced ground bsp brush(and applied grass material once again) and problem kind of solved itself. But then it reappeared again, and now im missing path plane, which had the same texture whole this time
Hi heme3ic -
Thank you for the clarification. Can you tell me how many BSP brushes are in your level currently? You should be able to see them in the World Outliner in the Editor. Also assuming you are done editing the BSPs you can right click them in Unlit mode and Convert to Static Mesh and they should reappear correctly.
Thank You
Eric Ketchum
Hi heme3ic -
We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will offer further assistance.
Thank you.
Eric Ketchum
Sorry for late response, there are 51 brushes in total. Converting BSP geometry is not actually what I would like to use, since I’m currently using BSP for level prototyping and things may change
Hi heme3ic -
I am trying to get a successful reproduction of this issue internally and so far have not had any luck. I was thinking that a screenshot of your world Outliner would be helpful. I am specifically looking for any groupings and assignments that might have been made in the Outliner.
Let me know and I will continue to work on this issue -
Eric Ketchum
Hello -
Ok we are one step close we have eliminated one possibility. If their had been groups (Linked BSPs) that could have caused problems with BSPs. The next step, can you zip up just the *.umap file and upload it here for us to take a look at?
Thank You
Eric Ketchum
I would prefer not to upload it to public, but I can send it you in a PM(im not sure if it exists on this website) or email, how can I do that?
You can use the PM system in the Unreal Engine Forums.
I sent you a message
Hi heme3ic -
I received your message and noticed when I opened the map file (despite the SMs not being there) there was no error with the BSPs. This leads me to believe we have some erroneous data in your Project, so try going into your project folder and deleting the Intermediate, Saved and if it is there Derived Data Cache sub folders. Then open you project again, it will take a moment as it must recompile the shaders again.
Let me know if this solves your issue -
Eric Ketchum
Unfortunately removing “Intermediate” and “Saved” folders did nothing, all missing faces are the same as before(and possibly one more wall is now missing, but it could be that I did not notice it missing before)
Hi heme3ic -
Since your map is opening without error for me, Can you run the following test on the BSPs that are invisible? In the Editor, fly your perspective to inside one of the columns and see if you can see it. I am looking specifically to see if somehow the vertex normals have been reversed.
As a means of trying to get you back to work, create a new blank project with NO starter content (if your original project is a code based project duplicate that in the new project) then move the contents of your Content Folder (and Source if code-based) to the new project. Doing this has been known to rectify the vanishing BSP issue in the past.
Also have you done any Flip Face dynamics on your BSPs?
Let me know of the Test,
Thank You
Eric Ketchum