If you have ever spent way too much time trying to manually align two parts at a weird angle, this roblox studio plugin stravant gapfill tutorial is going to save you a massive amount of frustration. We have all been there—you're building a roof or a complex curved wall, and no matter how much you fiddle with the rotation and position increments, there is still a tiny, annoying sliver of empty space. It's enough to make any builder want to pull their hair out.
Stravant's GapFill has been a staple in the Roblox building community for years, and for good reason. It's one of those essential tools that feels like it should have been built into Studio from the very beginning. In this guide, I'm going to walk you through how to get it, how to use it without breaking your model, and a few pro tips to make your builds look professional.
Getting Started with Stravant Gapfill
Before we dive into the "how-to," you actually need the plugin. If you search the Creator Store, you might find a dozen different versions, but you want the original by Stravant. He's a legendary developer in the Roblox space (you might also know him for ResizeAlign, another life-saver).
Once you've installed it from the Toolbox, it'll show up in your Plugins tab at the top of Roblox Studio. When you click the icon, a small, fairly retro-looking GUI will pop up. It's not flashy, but it gets the job done. Don't let the simple interface fool you; the logic behind how it calculates geometry is actually pretty sophisticated.
How to Use GapFill Step-by-Step
Using the plugin is actually pretty intuitive once you understand that it relies on edges, not just parts. Here is the basic workflow to get you moving.
Selecting Your Edges
First, click the GapFill button in your plugin bar to activate the tool. You'll notice your cursor changes. Now, you need to select two edges.
- Hover over the first part. You'll see a white line highlighting the edge of the part. Click it.
- Hover over the second part. Again, look for that white highlight on the edge you want to connect to. Click that one.
- As soon as you click the second edge, the plugin will automatically generate a new part (usually a WedgePart or a CornerWedgePart) that perfectly fills the void between them.
It sounds simple, but the magic is in which edges you pick. If you pick two parallel edges, it'll create a standard block. If you pick two edges at a 45-degree angle, it'll create a wedge.
Choosing the Right Fill Mode
Inside the GapFill menu, you'll see a few different options for how the fill is generated. The most common one is "Standard", but sometimes that doesn't quite give you the result you want if the geometry is really wacky.
If you find that the part it creates is "inside out" or looks like a weird paper-thin sliver, try undoing (Ctrl+Z) and switching the selection mode. Usually, just clicking the edges in a different order or selecting the opposite side of the part fixes the issue.
Why This Plugin is a Game Changer
You might be thinking, "Can't I just rotate a part myself?" Sure, you could, but you'll never get it as precise as the math used in this plugin.
Perfecting Curved Walls
When you're making a curved hallway, you usually rotate segments by a few degrees at a time. This leaves triangular gaps at the joints. Trying to fill those manually involves a lot of "trial and error" with WedgeParts. With this roblox studio plugin stravant gapfill tutorial method, you just click the top edge of segment A and the top edge of segment B, and the gap is gone in half a second.
Complex Roof Geometry
Roofs are notoriously difficult in Roblox Studio. When you have two different slopes meeting at a corner, getting that "hip" or "valley" of the roof to align perfectly is a nightmare. GapFill handles the trigonometry for you. It calculates the exact angle needed to bridge those two slopes, creating a seamless transition that looks great even if you aren't using meshes.
Advanced Tips for Clean Builds
Once you get the hang of the basics, there are a few things you should keep in mind to keep your workspace tidy and your performance high.
Mind the Part Count
It is very easy to get "GapFill happy" and start filling every tiny crack in your map. Just remember that every time you click, you're adding a new Part or WedgePart to the workspace. If you're building a massive city, these can add up. I usually recommend unioning the filled parts with the main walls once you're happy with the look, or at least grouping them properly so they don't clutter your Explorer window.
Matching Materials and Colors
One of the best features of the plugin is that it tries to match the properties of the parts you are connecting. If you select two "Concrete" parts that are "Dark Stone Grey," the new part will usually inherit those traits. However, it's not always 100% perfect, especially if the two parts you're connecting have different settings. Always double-check the Properties tab after a fill to make sure the new part is Anchored and has the right transparency.
Dealing with Z-Fighting
Z-fighting is that annoying flickering you see when two parts are occupying the exact same physical space. Because GapFill is so precise, it sometimes places the new part exactly flush with the original ones. If you see flickering, you might need to slightly adjust the position of one part by 0.001 studs, or just use the ResizeAlign plugin (Stravant's other masterpiece) to pull the edges back just a hair.
Common Mistakes to Avoid
Even though this tool is a lifesaver, it can act a bit wonky if you aren't careful.
- Selecting the wrong face: If you click the "side" face instead of the "top" edge, the plugin might create a massive block that shoots off into infinity. If that happens, don't panic. Just hit Ctrl+Z and try again, focusing specifically on the thin line that highlights the edge.
- Forgetting to Anchor: While the plugin usually inherits the "Anchored" property, sometimes it doesn't. There's nothing worse than finishing a beautiful build, hitting "Play," and watching your entire roof fall to the floor because the GapFill parts weren't anchored.
- Ignoring Thickness: GapFill works best when the two parts have the same thickness. If you try to gap-fill a 1-stud thick wall to a 5-stud thick block, the result is going to look a bit like a mess. Try to keep your primary segments consistent before using the tool.
Final Thoughts
At the end of the day, building in Roblox is all about workflow efficiency. You want to spend your time on the creative stuff—the lighting, the atmosphere, the gameplay—not on fighting with the move tool to fill a 0.05-stud gap.
Mastering this roblox studio plugin stravant gapfill tutorial is basically a rite of passage for Roblox builders. It takes you from a "beginner" who struggles with alignment to a "pro" who can whip up complex architectural shapes in minutes.
So, go grab the plugin, throw down a couple of angled parts in a baseplate, and just start clicking edges. It'll take you about five minutes to get the "feel" for it, and once you do, you'll wonder how you ever built anything without it. Happy building!