UE5 RTS Camera Terrain Follow

What You Will Build

• A terrain-aware RTS camera pawn
• A downward line trace that checks ground height every frame
• A configurable DesiredOffset value for camera height above the ground
• A Blueprint setup that updates only the Z location while preserving X and Y movement
• A test environment with sculpted terrain and obstacles
• A cleaner camera feel across hills, ramps, and uneven map surfaces

Why Terrain Following Matters in RTS Cameras

In an RTS or top-down camera system, the player is often moving across large spaces. If the camera ignores terrain elevation, several problems appear:

• the camera may feel disconnected from the world
• cliffs and hills can look awkward from a fixed height
• the camera may clip too close to raised terrain
• movement across slopes feels less polished

Terrain following fixes that by making the camera adapt to the surface under it. The camera still moves horizontally like an RTS camera should, but it also adjusts vertically so the view stays more stable and more believable.

Why Use a Custom Pawn with a Line Trace?

There are two obvious ways to approach ground-following movement:

1. Use a Character and let Unreal’s movement system handle ground interaction.
2. Use a custom Pawn and manually calculate terrain height.

For an RTS camera, a custom Pawn is usually the better fit. A Character comes with movement assumptions that are useful for player characters, but not always ideal for top-down strategy cameras.

A custom Pawn plus a line trace gives you:

• more direct control
• less extra character-specific overhead
• a cleaner RTS-focused setup
• easier tuning for height behavior

So that is the route used here.

How the Full System Works

The terrain-following logic is simple:

1. Every frame, get the RTS pawn’s current location.
2. Start a line trace from above the pawn.
3. Trace downward far enough to hit the ground.
4. Break the hit result.
5. Read the Impact Point Z value.
6. Add a desired height offset.
7. Set the pawn’s Z location to that final value.
8. Keep the pawn’s current X and Y unchanged.

That means the camera can still move around the map normally, but its height is constantly corrected based on whatever is directly below it.

Step 1: Open BP_RTSPlayer

Open the Blueprint that controls your RTS camera pawn:

BP_RTSPlayer

This is where the line trace and terrain adaptation logic will be added.

Step 2: Start from Event Tick

In the Event Graph, use:

Event Tick

The reason for using Tick here is straightforward. Terrain height can change continuously as the camera moves, so the system needs to keep checking the ground below the pawn in real time.

This is one of the cases where Tick is justified. You are not using it for lazy design. You are using it because the camera’s terrain adaptation must update continuously.

Step 3: Add a Line Trace by Channel

From Event Tick, add:

Line Trace by Channel

This node will detect the surface below the RTS camera pawn.

For debugging while building the system, set:

Draw Debug Type = For Duration

That will let you visually confirm where the trace starts, where it ends, and whether it is actually hitting the ground.

Why a Line Trace Is the Right Tool

A line trace is a direct answer to a direct question:

What is directly below this actor right now?

For terrain adaptation, that is exactly what you need.

A downward trace is cheap, understandable, easy to debug, and fits the job without unnecessary complexity.

Step 4: Get the Current Actor Location

Add a:

Get Actor Location

You will use this location twice:

• once for the trace start
• once for the trace end

The camera should trace from roughly its current X and Y position, because that is the terrain directly below the camera pawn.

Step 5: Create a DesiredOffset Variable

Create a float variable named:

DesiredOffset

Mark it as:

Instance Editable

Give it a starting value such as:

200

This offset is the vertical distance you want the RTS camera pawn to stay above the detected ground.

Making it instance editable is smart because different maps, scales, and camera styles may need different height offsets.

Why DesiredOffset Matters

The line trace will tell you the ground height. But you do not want the camera pawn sitting exactly on the ground. You want it hovering above it by a controlled amount.

That is what DesiredOffset does. It is the clean tuning variable that controls the camera’s base clearance from terrain.

If the camera feels too low, increase it. If it feels too high, reduce it.

Step 6: Set the Line Trace Start Point

For the trace start:

• use the actor’s current X
• use the actor’s current Y
• use current Z plus DesiredOffset

This means the trace begins a bit above the pawn’s current position.

Starting from above is useful because it helps make sure the trace points downward through open space toward the terrain.

Step 7: Set the Line Trace End Point

For the trace end:

• use the actor’s current X
• use the actor’s current Y
• use current Z minus a large value such as 1000

This makes the trace travel downward far enough to hit the terrain even when the camera moves over slopes, drops, or uneven surfaces.

If your terrain is very dramatic, you may need to trace farther downward, for example with -1500 or more.

Why the End Point Needs Enough Depth

If the trace is too short, it may fail to hit the ground on steeper slopes or lower terrain areas. Then your camera will stop updating properly and the system will feel inconsistent.

So do not make the downward trace distance too small just because you want to be “efficient.” A failed trace is worse than a slightly longer one.

Step 8: Break the Hit Result

From the Line Trace by Channel node, use:

Break Hit Result

The key part you need is:

Impact Point

Break the Impact Point vector and extract the:

Z value

That Z value is the terrain height directly below the camera.

Step 9: Add DesiredOffset to the Impact Z

Take the Impact Point Z and add:

DesiredOffset

The formula becomes:

FinalZ = ImpactPointZ + DesiredOffset

This is the height you want the camera pawn to use.

Step 10: Set the Actor Location

Add:

Set Actor Location

For the new location:

• keep X as the actor’s current X
• keep Y as the actor’s current Y
• set Z to FinalZ

This is very important. You are only adapting the pawn vertically to terrain. You are not trying to overwrite the normal RTS movement on X and Y.

Why Only Z Should Change

The RTS camera movement system already controls X and Y. Terrain adaptation should not interfere with that.

If you start recalculating X and Y here too, you are mixing movement systems together and making future debugging harder.

Keep the logic focused:

movement handles X and Y
terrain follow handles Z

That separation is clean and easier to maintain.

Step 11: Sculpt Terrain for Testing

To properly test the system, your level needs uneven terrain.

Switch to Landscape Mode and use the Sculpt tool to create:

• small hills
• slopes
• raised ground
• lower areas

Example terrain test settings:

• Brush Size: 500
• Tool Strength: 0.1

You do not need a masterpiece here. You just need enough height variation to see whether the camera adapts properly.

Step 12: Add Test Obstacles

It is also useful to place a few simple shapes, such as cubes, in the level to create obvious elevation changes and visual references.

Add a cube from:

Quick Add > Shapes > Cube

Scale it up and place it on the terrain so you can visually test how the camera behaves around raised surfaces.

Step 13: Test the Camera Live

Press Play and move the RTS camera around the map.

Watch for the following:

• when the pawn moves uphill, the camera height rises
• when it moves downhill, the camera height lowers
• the offset above the terrain stays consistent
• the camera does not feel disconnected from the world

If the line trace debug is enabled, you should also see the trace visually hitting the terrain.

What the Final Result Should Feel Like

When the system is working correctly, the camera should feel stable and aware of the landscape. It should not behave like a flat board sliding over a 3D environment.

The player should feel that:

• the map elevation matters
• the camera responds naturally to terrain changes
• movement across the world feels more polished

It is a small system, but it contributes a lot to perceived quality.

Common Problem: The Camera Does Not Move Vertically

If the camera never changes height:

• check that Event Tick is firing
• check that the line trace is actually hitting the terrain
• check that the Set Actor Location node is connected
• check that the Z value is coming from Impact Point plus DesiredOffset
• make sure your terrain has actual height changes

Usually this is either a failed trace or a disconnected Set Actor Location path.

Common Problem: The Camera Clips Too Close to the Ground

If the camera feels too low, increase:

DesiredOffset

That is the main tuning variable for how high the camera stays above the terrain.

Do not start changing five other values before testing the obvious one first.

Common Problem: The Trace Misses the Terrain

If the trace occasionally misses:

• increase the downward end distance
• confirm the trace channel can hit the terrain
• use debug drawing to inspect the trace path

If your terrain is steep or the pawn moves over tall shapes, a short trace can fail. Extend it farther downward.

Common Problem: The Camera Feels Too Jittery

If the camera height changes feel noisy or jittery, a few things may be causing it:

• the terrain surface is very uneven at small scale
• the offset is too small
• your trace is colliding with unexpected surfaces
• you may eventually want smoothing or interpolation

This tutorial focuses on the raw terrain-following logic. If you want smoother vertical motion later, you can interpolate the Z movement instead of snapping directly to it every frame.

Why This Setup Is a Strong Foundation

This system is a great foundation because it stays modular:

• WASD or edge scrolling handles horizontal movement
• terrain adaptation handles vertical response
• DesiredOffset handles tuning
• the line trace handles terrain awareness

Each part has a clear job. That matters if you want to keep expanding the RTS camera later with edge scrolling, map boundaries, zoom behaviors, or minimap interaction.

What You Can Improve Later

Once the raw terrain-follow system works, you can make it better with:

• Z smoothing using interpolation
• different trace channels for terrain vs props
• special handling for cliffs or water
• adaptive offsets at different zoom levels
• camera pitch adjustments based on terrain steepness

But do not overbuild too early. First make sure the core trace-based height logic is solid.

Conclusion

In this tutorial, you added terrain-following logic to an Unreal Engine 5 RTS camera using a downward line trace, a DesiredOffset variable, Break Hit Result, and Set Actor Location. The camera now adapts to the ground below it and maintains a stable height above hills and uneven terrain.

This makes the camera feel much more grounded and much more professional than a flat-height setup.

Watch the full tutorial on YouTube: Part 5 – How To Make Your RTS Camera Follow Terrain in Unreal Engine 5!

Download the project files: UE5 RTS Camera Tutorial GitHub Repository

Subscribe for more RTS camera tutorials: Subscribe to Rambod on YouTube

Resources

• RTS Camera Project Files
• Tutorial Page on rambod.net

Frequently Asked Questions

How do I make an RTS camera follow terrain in Unreal Engine 5?

Use a line trace each frame to detect the ground below the camera pawn, read the impact point, add a height offset, and update the pawn’s Z location.

Why use a custom Pawn instead of Character for an RTS camera?

A custom Pawn gives you more direct control and avoids extra character movement behavior that is not always useful for strategy camera systems.

What is DesiredOffset in this setup?

DesiredOffset is the vertical distance you want the camera pawn to stay above the detected terrain height.

Why does the line trace start above the actor and end below it?

Starting above and tracing downward makes it easier to consistently hit the terrain below the pawn and calculate the correct ground height.

Why is only the Z location updated?

Because the RTS movement system already controls X and Y. Terrain following should only handle vertical adjustment.

What should I do if the camera feels too low or too high?

Adjust the DesiredOffset value first. That is the main tuning control for camera height above the terrain.