I’ve been having a lot of frustration with the level design tools in UE4. I want to make a lot of Archvis stuff to work on lighting and placement but, as we all know, the current geo editor in UE4 is absolutely awful to work with. Now I could go on and on about my complaints about it but that’s not very productive. Instead, I want to point out a couple things, and raise some issues i’ve had but before I do that, let me explain why the answer “just use static meshes” is not a good answer and shouldn’t be the conclusion.
Static meshes require an external editor, which makes the workflow slow and extremely tedious. Let’s say I want to have a simple apartment with some hallways and some rooms that have windows. I model it all in maya using various cubes and shapes. Right away, I come across some annoyances. If the entire ground is flat (remember this is just a quick level), then it requires an extremely high resolution lightmap in order to get good shadows. Now I could split up the floor into different meshes, but then I run into the issue of shadow seams because the meshes are lit in different threads. I could also make the floor different heights which might fight against my design in some cases. The best solution is to cover it up with something, which won’t work if the floor is supposed to be hard wood.
So I figure that out and I make the light maps and unwrap everything so they have the same texel density. I import it into the editor and slap in a directional light, a sky light, and some point lights.
Now I get the notorious light leaks and splotches, which are insanely difficult to get rid of and I’ve struggled with it for a couple years now.
Now all of these issues have workarounds, but the most egregious problem lies in iteration. Epic has said they fast iteration is a huge focus but static meshes just don’t allow for this.
So I design I want to extend a hallway and add another room. To do that, I must go into my 3D editor, change the shape, then I have to adjust the texture UV’s, then I have to adjust the lightmap UV’s, once again making sure it matches texel density. Then I import it back into the editor. This is slow and cumbersome.
Now with BSP style level editors, it’s so much simpler. I can design the same map in 1/8th the time. I can choose which faces have better light resolution, and I can lay out textures easily. If I need to extend the hallway, I can do so and it won’t stretch the texture, instead, the texture stays the same and just keeps tiling.
Now i’ve tried HammUEr before, and it honestly is a better workflow then UE4 geo. It still has the problem of having massive amounts of light leaks and seams, which are (mostly) remedied by exporting it to a 3D editor, fixing the lightmaps, and importing back into UE4.
I know BSP is out, but must we really lose the incredible editing tools that come with it?
Here are some things I would love in a better mesh editor in UE4:
Better orthogonal manipulation. Right now I have to drag select vertices in geo editing mode, which makes it annoying when I have to extrude. I would love the ability to have handles (hammer style) that I can drag and it will reshape the mesh.
Better geo creation. I can drag and create a brush the exact size I want in hammer or radiant. But in UE4, I have to either clone what i’m working on, or drag another one in and manipulate that.
Snap to the grid. No I don’t mean move the selected object a certain amount of units away. I mean if I want to drag a face that’s off the grid onto the grid, it won’t just snap 10 units away, skipping over the grid. I mean I want to move that face onto the grid. The “align brush vertces” is good but it aligns all vertices, including vertices I don’t have selected.
BSP style texturing. I tried the new mesh editor in the geometry branch on github, but there is currently no way to texture the mesh. This means if I drag a face out 2 meters, it will stretch the face with no way to fix it except export to a 3D editor, unwrap, then import. This is still in development, so i hope they will add it later.
Snap to vertex.
That’s all I can think of for now, but I hope i’ve made my point that something needs to change. Epic has promised new Geo tools for a long time now and I hope we can get some news on it.
And if anyone has any tips, let me know. I’ve read through the lighting guides, the lightmapping guides, the wiki, and searched all over but I still have a lot of frustrations.