fritzshero / roadarchitect

Road Architect for Unity; Development is ongoing but slow; Also available at GitLab: https://gitlab.com/FritzsHero/roadarchitect

RoadArchitect

Road Architect for Unity. Road Architect is a professional quality road system creator featuring dynamic intersections, bridges and many other road objects.

Road Architect is currently being developed with the latest Unity LTS release 2020.3 and is working with most of the previous versions. If interested in contributing please open an issue or pull request.

• It is recommend to download a release from the Releases tab
• The resulting folder should be copied to the root of your Assets directory and named RoadArchitect
• https://github.com/FritzsHero/RoadArchitect/releases
• Documentation: https://github.com/FritzsHero/RoadArchitect/wiki
  • Note: The Road Architect menu is located under the "Window" menu.

Videos

• Overview: https://www.youtube.com/watch?v=AUwud3XklJ8
• 2.5 minutes: https://www.youtube.com/watch?v=DZWYfgDNSoo
• Road Architect Tutorial #1: Road Creation: http://youtu.be/IR4lwbnuPVQ
• Road Architect Tutorial #2: Bridges: http://youtu.be/Dq4c2Q0wlAs
• Road Architect Tutorial #3: Intersections: http://youtu.be/05Pg7U1FHyg
• Road Architect Tutorial #4: Extrusion & Edge Objects: http://youtu.be/jQT15NlWIV4
• Road Architect Tutorial #5: Splatmap Creation: http://youtu.be/qy71HXR4VBg
• Tutorial playlist: https://www.youtube.com/playlist?list=PLnPqLrVfSAEIk_7Ug6IkknZCSW2GlR74g

NOTE: Unless stated otherwise, all screenshots were made using Unity 2018.2.2f1 Personal. They utilize free trees and grass from the Unity Asset Store, RoadArchitect, and the Unity Post-Processing Stack v1. No paid products were used in the production of these screenshots.

Intersections

• Dynamic - Procedurally generated based upon lanes, road width and angle of attack.
• Turn lanes - Complete left and right optional turn lanes.
• Traffic lights - Fully functioning and heavily detailed traffic light system including left on yield and right turn lane only lights.
• Assets - Includes several assets such as traffic light poles, street lights, traffic lights, stop signs and more. Most include rigid body versions for dynamic environments.

Bridges

• Bridge wizard - Allows for instant creation of professional quality bridges such as causeway, arch, suspension and more. All bridge creation aspects are generated instantly allowing quick iteration.
• Customization - Custom extrusion allows for mix and match of bridge parts. Over 50 bridge parts included.
• Details - Many different types of railing, bases, center dividers included.
• Curvature - Curvature of bridges supported including arch and suspension bridges.

Railing and extrusions

• Railing - 12+ Railing types included such as K-Rails and W Beams.
• Center dividers - Many center divider options including the most popular configurations such as K-Rails with blinders or street lights. All aspects of mesh extrusion are performed instantly allowing quick iteration.
• Collision barriers - Water barrels and other collision barriers come with prefabricated rigid or static body configurations.
• Custom extrusion - Extrude any custom mesh along the spline with almost limitless customization.

Assets

NOTE: This screenshot has no other assets besides RoadArchitect.

• Road assets - Several road assets are included such as street lights, double lights, stop signs and more. All aspects of road asset placement are done instantly, allowing for quick iterations.
• Custom assets - Place any custom mesh along the spline with an extreme amount of customization options.
• Signs - 300+ U.S. federal and state road signs are pre-built and available for use.
• Future assets - Assets will be added and freely available as time progresses.

Quality

• Speed - All mesh extrusion, bridge extrusion and road asset placement actions are instantaneous. Multithreaded support.
• Quality - Most road textures at least 1024x1024 resolution. Materials include normal and specular maps. Most assets created to federal or state specification.

Origin

• We respect the creators and their decision on open sourcing this asset.
• The original repository can be found here: https://github.com/MicroGSD/RoadArchitect

roadarchitect's Issues

Could this be made into a package.

Would be awesome to be able to install this via the package manager.

Not work correctly with terrain generated by heightmap

Description
Roads go into terrain, penetrating it.
Work correctly with terrain generated normally, but has problems with terrain generated by heightmap.

How to Reproduce
First,create terrain using heightmap.
Then,add the road system and create road.

Expected behavior
Roads fits terrain perfectly.

Screenshots

Unity version
2021.2.14f1c1

OS
windows10

i cannot place roads and i created a road System

Description
if I hold shift click or ctrl click nothing happened and no Gizmo

Unity version
2020.3.21f1
OS
Windows

Trying to create roads from a texture using this asset

Hi! I think I should not create an issue here for this... But maybe it could be a good starting to point to enhance this asset.

I need help with a complex task I'm trying to creating roads using this asset.
I'm trying to detect all roads from a texture. I have created a model class to store every detected road using a little bit of recursion:

https://pastebin.com/vSGxMhTs

At every loaded chunk (I'm using SebLeague tutorial to create the chunks), I get all the road points for this chunk. Then, I try to iterate them. But I have problems interpreting the results.

I have part of the task done:

https://pastebin.com/NV1nLM2C

You can see here the StringBuilder results: https://pastebin.com/1tW4V4BC

But as you can see I have problems with roads. Some roads only have one node, other roads only have 2 nodes...

I'm thinking that the current implementation I did isn't right at all, because instead of grouping all nodes into one major road I'm splitting them into road chunks without sense.

For this reason, I created this topic, in order to clarify myself because I'm not sure about what I'm doing and which way should I take.

I created a gamedev question (if you need to review the code directly): https://gamedev.stackexchange.com/questions/186361/trying-to-creating-roads-from-a-2d-texture-into-a-3d-map-using-roadarchitect

Also, I could share the points I get on each chunk, the JSON file which has all the roads, etc, etc
Thanks for your attention!

mesh optimization techniques

hi i was using this software and found no way to optimize the mesh, i used minimum amount of nodes hoping it would reduce the mesh count but it didnt i looked at some settings but couldnt find anything related are these features in it if so would appreciate some help regarding that if not that would be a feature that would benefit a lot of developers thank you

Other types of intersection, like T and Y

Other types of intersection will make much more natural looking road structure, and could be ideal for making large road network.

Thank you

Add/Set first Node of a road by c#-script

Hi,

I have multiple xyz coordanates and want to built a road based on them. In the script I already can add the road system but I cant set the first node. Can you say which command I need for this?
Its possible to do it pressing ctrl + mouse left, but I want to do it in the c# script so i can add multiple roads without clicking.

I would be very happy about an answer.
Thanks

Crash in Unity "Engine Patch - 2021.2.7f1"

Description
Hello I have a problem about Unity Crash when using road architect.

I open a terrain ( no edit, just a plane ) and try to build road.
but it will crash like few while.

Is my unity engine too new for road architect ?
should i change engine to old version

And thank for who reply me, thank you so much.

Unexpected large terrain deformation when first node of road placed

Describe the bug

Whenever I place the first node of my road, the terrain gets a huge deformation:

I have tried moving the terrain around, the road objects around, but nothing changes.

To Reproduce
Steps to reproduce the behavior:
Create a large terrain, place first node, terrain gets deformed.

Expected behavior
No deformation unless related to road placement.

Unity version

2020.3.5f1

Road architect latest version at time of writing, v1.9_FH

Thanks!

Thank you for maintaining this project!

Sorry to fill an "issue" for this, but i couldn't find any email to reach you out.
Just in case you don't usually get feedback:
Thank you for maintaining this project!
I've never used it, but i'm sure it takes a great effort to keep it up to date while also fixing it's bugs & doing support stuff.

:youre_god:

"" mesh must have at least one non-degenerate triangle to be a valid collision mesh.

Description
Getting this error intermittently not sure to reproduce.
"" mesh must have at least one non-degenerate triangle to be a valid collision mesh. UnityEngine.StackTraceUtility:ExtractStackTrace () RoadArchitect.RoadConstructorBufferMaker:MeshSetup2HelperCutsShoulder (int,UnityEngine.Mesh&,UnityEngine.Vector2[],UnityEngine.Vector4[],UnityEngine.GameObject&,bool,bool,UnityEngine.GameObject&,UnityEngine.Material[],UnityEngine.Material[]) (at Assets/RoadArchitect/Scripts/RoadConstructorBufferMaker.cs:2485) RoadArchitect.RoadConstructorBufferMaker:MeshSetup2 () (at Assets/RoadArchitect/Scripts/RoadConstructorBufferMaker.cs:1166) RoadArchitect.Road:ConstructRoad4 () (at Assets/RoadArchitect/Scripts/Road.cs:1041) RoadArchitect.Road:EditorUpdate () (at Assets/RoadArchitect/Scripts/Road.cs:368) RoadArchitect.Road:<OnEnable>b__123_0 () (at Assets/RoadArchitect/Scripts/Road.cs:258) UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

I am creating a ring road where first and last node are connected and also there is an intersection on this 6 lane(ring road) to 4 lane road on another node, In this intersection 6-4 lane the road materials do not form correctly(screenshot)

How to Reproduce
Not sure
Expected behavior
The Error is not letting build the game

Unity version :
2021.3.5f1.321Personal
Windows 11

Additional context

Lock rotation

It would be useful if you add the option that lock rotation of the object in each axis in arbitrary angle. This can solve the problem when edge objects(eg bridge pillars)have terrible position when road generated on a slope
How it will looks in the editor inspector is shown in picture

RoadUtility Namespace

I moved from the original to this fork due to the road flickering, which this took care of (THANKS!!).

It runs fine, but when I try to build I'm seeing these errors for PC:

Assets\RoadArchitect\RoadConstructorBufferMaker.cs(197,21): error CS0246: The type or namespace name 'RoadUtility' could not be found (are you missing a using directive or an assembly reference?)

Assets\RoadArchitect\TerraformingThreaded.cs(703,24): error CS0246: The type or namespace name 'RoadUtility' could not be found (are you missing a using directive or an assembly reference?)

etc...

This from a simple new unity project in which i just create a terrain and slap some asphalt down, then build. Nothing more. When I switch back to the MicroGSD original, it compiles fine but I could run into road flickering if I expand the project.

Using Unity 2019.3.13.

Many thanks!
Miki

extruded road objects created with the same name overwrite each other if "save mesh assets" check is on

it easy to workaround but still annoying when you need rename hundreds of objects

create road with few nodes
turn on "save mesh assets" check
select first node and add custom extrusion object(bridgebase mesh for example)
select second node and add custom extrusion object with same name and mesh
extruded mesh from first node will dissapear (missing mesh)

you should add script that will detect extrusion objects with the same name and give them unique e.g extrudedobject, extudedobject(1), extrudedobject(2)...(3)...(4)

unity 2018.2.0f2

Porting over to Godot Game Engine.

Hi. I'm a Godot Game Developer, and I would like to port this over to Godot, are you ok with me porting this?

Btw, you have done a great job!

Thanks for your work!

How to make a car move along a close loop road

Hi,

I need to do a close loop road and make cars move in it. The cars are not player controlled and need to move at constant speed in there lanes forever in the loop.

Is this possible to do with road architect? I cannot find the functionality to do so. If not, do you know any other assets package that can?

Intersections Problem

When creating an intersection, mesh networks are broken. When I combine the starting and ending points of the path, the line of the objects is broken. I am currently using the project.If you fix it, I'd appreciate it.

Road Definition Pavement Edges

Every problem has a solution. Every solution has a problem. ~ me

So fixing the notchy center lines by lowering the road definition number to below tolerances reveals why there are tolerances.

Note the pavement edge at resolution 5 is perfectly smooth, while the center lines are troublingly straight.

Solved by the lowering, which leaves the center line perfectly curved, but now makes the edge of the pavement unfortunately notched.

Taking all suggestions, or requesting a feature improvement for 2.0. Curved lines, and edges with no straight lines or notches.

Collisions at end of tunnel

Describe the bug
When I add a tunnel to a Node using open wizard, my player vehicle seems to run into an invisible collider at the beginning or end of the tunnel. Deleting and re-creating the tunnel doesn't seem to help, but it does seem to change where collision is occurring. Moving nodes or adding nodes doesn't seem to help. Any advice?

Expected behavior
To drive through the tunnel and continue on road.

Unity version
2019.2.0f1

Additional context
Add any other context about the problem here.

beginner question

Any tips you can provide on how I would go about constraining my Player (a car) to the road? Perhaps using the transform.position of the RoadCut mesh? For example, if my Player drives on on RoadCut0, he's limited to roughly the X and Z position of the RoadCut0, but when he moves to RoadCut1, he's then limited to roughly the X and Z position of RoadCut1? If this is question isn't appropriate here, feel free to delete.

Spline End Point Offset - Getting the last Mesh Endpoint

I would like to hook my own Systems into the RoadArchitect. I've went through the code many times but I can't figure out this issue.

Im trying to figure out to get the end point of the road mesh. The GetSplineValue(1) is not the real endpoint of the mesh. It's slightly further away. I've also played arround with the GetClosestParam() Method which always returns the endTime of 1.

So how can I easily access the Mesh endpoint and its tangent without the offset? (Red Circles in photo)

Bridge has wider shoulder than the road's

Hi FritzsHero,

I've encountered an issue when creating a bridge. The bridge's shoulder is much wider than the road's. I can't find where or how to make the bridge as wide as the road.

Please see below screenshot:

Here is my road setting. The Shoulders width is set to 0.5, which is relatively narrow (see above image).

Version
Road Architect version: 2.0.2
Unity version: 2021.1.11f1c1

Not sure if it's a bug or not.
Kindly, please help to take a look when you have time.

Thank you very much.

Stop sign need better collisions

Describe the bug
In it's current state stop signs have a Rigidbody component and a box collider. However this collider is to small to keep the stop sign in it's position when entering play mode. There is also a code workaround in place which sets the Rigidbody to kinematic and not using gravity effectively keeping stop signs in place like a wall.
Stop signs should be able to be knocked down or even getting knocked into the air, if the force that hit them is high and react with the corresponding physics.
Planned for future.

More customizable lanes settings

In the editor, I can only change the lanes to 2,4,6.
but I need more customizable lanes settings,
eg. a road starts with 2 lanes of single lane each left and right side,
then it smoothly change to 3 lanes of 1 lane on the left and 2 lanes on the right.
Is this feature already achieved?

In the "SplineN.cs" file, the "CanBridgeStart()" function is always returning false.

In the "SplineN.cs" file, the "CanBridgeStart()" function is always returning false. As a result, I cannot enable the Bridge Start and End checkboxes in the Inspector to create a Bridge. I am using Unity version 2022.2.20f1.

Version 2.0.0 does not work with Unity prior to 2019.2

I tried re-importing and everything I could but when I create a new Road Architect system and click on the road, I cannot hold down shift and click to create nodes

That's not a bug its a feature

Is there a way to get more naturally curving roads that do not feature straight line pivot points as highlighted in the photo above. Like spline resolution?

Not creating road

Whenever I try to add a node on terrain by holding ctrl ,it doesn't create node instead it selects terrain.
I am using 2020 Lts version.
Plz help 🙏

adding base textures are not showing

Describe the bug
when adding my own textures to the road it does not change it stays its original road textures. im using it in hdrp. no errors by the way.

Unity version

2020.3.0f1

Strange Traffic Light Positioning

First of all: Thank you for this amazing project and for maintaining it.

Describe the bug
If I build a intersection (just like it is described in the docs) the position of the traffic lights is very bad (see picture). But only for the lights.

To Reproduce
Steps to reproduce the behavior:

1. Create New Project
2. Import RoadArchitect from Rewritten API Branch
3. Insert two Roads
4. Create a simple intersection
5. Set stop type to traffic lights

Expected behavior
A intersection with nice positioned traffic lights just like in the videos and docs

Screenshots

Unity version
2019.4.14

imported a package and when tried to add extrude objects it says "could not find path to extrude objects". any solution?

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

Unity version

i.e. 2018.2.0f1

Additional context
Add any other context about the problem here.

It's not adding road nodes on Unity 2020.3.21f1

I create road system and it creates a road system. But when I try to add nodes it's not working.

Skid marks disappear on pavement

Edy's Vehicle Physics 5.3 leaves tire skids you can see at great distance on every ground object like terrain, and even 3d objects like cubes, but not on roadways. So your system seems to erase the skids at a very short distance (left side) from the camera, or refuses to draw them (see screenshot) as far away as on terrain (right side). when the camera moves closer the skids on the left side reappear. I tried disabling 'active detail removal', 'active tree removal', but this did not solve the problem. Did I miss something? Do you think this is caused by Road Architect or Edy's? Is there a way for tire marks to display on the pavement at the same long distance as on other objects?

On 1710f3 and 1831f1

Road Definition 1 and 0.1

Below is my test track originally built to default Road Definition 5 featured below rebuilt to Definition 1.

And with a line modified in the code, here is my track rebuilt to 0.1 Road Definition

I could guess this is a definition limit of some kind, but would prefer you tell me what limit I have now reached? The line for the road and nodes still exist in the empty space above, but no road is being built.

Intersections aren't removed when roads get deleted

Description
Often when I create a road network, and them delete certain roads, the spines remain in place and make it impossible to continue to make a road network.

How to Reproduce
Create a road network, delete certain roads, try to re-add roads.

Expected behavior
The splines should be removed as well.

Screenshots

Road Architect bug in Unity

<script async src="//s.imgur.com/min/embed.js" charset="utf-8"></script>

Unity version
2020.3.21f1

OS
Windows 11

Additional context
It might be happening when I try to join the end node and start node to create a circuit, not sure.

How to create roadway camber or x-axis tilt?

Is your feature request related to a problem? Please describe.
Roadways are created flat. You can create hills. How to make roadway tilt?

Describe the solution you'd like
I want to make a roadway that leans to the left as I drive along, and then back to flat, and then back to the right so my drink would spill out of its can.

Describe alternatives you've considered
I have tried 1.6. it does not tilt.

Additional context
I have read in a forum this asset can, or will be able to do this... how?

integration with unity layers system

This might help combine road architect with another Unity plugins that use mesh data, for example, I use "terrain composer" to generate custom terrain subtraction for road by creating a special mesh for it and assign invisible layer for it.
The problem is that the road architect assigns a default layer for all extruded objects and I need to reassign the layer again every time the road is updated. Thanks for maintaining this great unity road creation engine!

Bridges does not work [Thumbnails not shown, wizard cannot add any bridges]

Hi! I'm learning to use RoadArchitect, and i'm trying to add a simple bridge to my terrain (same height). But trying to add a bridge from the wizard is not working for me. Also, the wizard doesn't have any thumbnails, even existing those files in the editor folder.

Right here i checked the start and the end nodes of the bridges, but adding something from the "Completed Bridges" doesn't add anything

Already tried to implement a bridge in another project and re-downloading the assets folder. Any of these seems to fix it

cant create road in unity

whenever i click shift or ctrl to create road in unity....it wont create any node only the terrain will show....please any help or solution to this....its really urgent

pink textures

original textures are pink

Edge objects for starting and ending Nodes

Describe the bug
Can't get edge objects (cable barrier) to display on starting and ending Nodes

To Reproduce
I have a circular road and I'm using edge objects (GSDCableBarrier-Light) around the entire road. I've added a Horizontal offset so the edge objects match the shoulder edge. I'm using a Simple trapezoid Collision Type and I've turned off "Automatic simple" so I can extend the height of the collider. This works great on most of the Nodes, but Node 1 (starting) and Node 23 (ending), where the Road connection is made don't display the edge objects. Also, since trying to get the edge objects on these nodes, I've started getting an error "[Physics.PhysX] cleaning the mesh failed". The error doesn't seem to affect anything.

Expected behavior
Edge objects

Screenshots
See screenshot.

Unity version
i.e. 2019.2.0f1

The warped or deformation terrain of the road does not work

The deformed terrain of the road does not work has a different width 6594 and a length 9999,
it worked only equal width with length ... how solution?

The Node Wizard Broken + Cannot Create Bridges

I'm using unity 2020.3.20f1 Personal. When clicking the Open Wizard Button all the presets are missing and not set up correctly.
I'm using the unity package release version 2.4.0
Likewise, all the bridge creation settings are missing. I'm unable to create bridges using the system as a result. All the models and prefabs are present.

That is the drop down only contains other groups, extrusion items, and edge items, none of which contain bridges within.
The Spline N script does not contain the Bridge Start, Bridge End toggles either, which was shown in the YouTube Bridge Tutorial.

Screenshots

Unity version
Unity 2020.3.20f1 Personal

OS
Windows 11

Status and Roadmap

Hi - very cool to see that you have worked on this after the original devs seem to have gone elsewhere.

Are you still planning to continue, or is this abandoned now again?

We are not using RoadArchitect yet but tested it quite a lot already a year ago, now again making offers to potential customers where this might be great. Nothing certain yet.

Intersections improvement request

thanks for great project, I have problems with intersections, when I do intersections with roads that have different width its not working properly and also when i do intersections 2 way and 4 way roads.
I will be glad if you implement that type of intersections.

roadtype railroad

a railroad roadtype could be a good enhancement.

Update all roads take infinite time!

Hello,
Thank you for maintaining this interesting project!
I am trying to create roads and intersections in the script.
Based on the RoadAutomation descriptions, I set "isAllowingRoadUpdates" to false, after calling "CreateRoadProgrammatically", and "CreateIntersectionsProgrammaticallyForRoad", I set "isAllowingRoadUpdates" to true and call the "UpdateAllRoads()".
But the "UpdateAllRoads()" function takes forever!!
How can I solve this issues?

Thank you

Road system portability

The idea is make possible to copy road systems to use them on another scenes or share with someone. Partially this already works, but every node you touch in the copy will break side objects.

road creation at runtime.

Is there an option to create roads at runtime?

[GNU/Linux] UnityEditor.ContainerWindow : NullReferenceException: Object reference not set to an instance of an object in Unity 2019 / 2020 LTS

In Unity 2020.3.3 LTS whenever I try to open the wizard for adding object on the node like railings. It throwing a null exception. Not sure if anyone else has this issue. Tried debugging the GSD script but no luck. It work in 2021.2.xx Alpha version of Unity 3d.
Any help appreciated !

Error log
NullReferenceException: Object reference not set to an instance of an object
UnityEditor.ContainerWindow.FindUnsavedChanges (UnityEditor.View view) (at /home/bokken/buildslave/unity/build/Editor/Mono/ContainerWindow.cs:306)
UnityEditor.ContainerWindow.UnsavedStateChanged () (at /home/bokken/buildslave/unity/build/Editor/Mono/ContainerWindow.cs:329)
UnityEditor.EditorWindow.CreateNewWindowForEditorWindow (UnityEditor.EditorWindow window, System.Boolean loadPosition, System.Boolean showImmediately, System.Boolean setFocus) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:1159)
UnityEditor.EditorWindow.Show (System.Boolean immediateDisplay) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:614)
UnityEditor.EditorWindow.Show () (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:606)
UnityEditor.EditorWindow.GetWindowPrivate (System.Type t, System.Boolean utility, System.String title, System.Boolean focus) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:658)
UnityEditor.EditorWindow.GetWindow (System.Type t) (at /home/bokken/buildslave/unity/build/Editor/Mono/EditorWindow.cs:690)
GSDSplineNEditor.DoExtAndEdgeOverview () (at Assets/RoadArchitect/Editor/GSDSplineNEditor.cs:617)
GSDSplineNEditor.OnInspectorGUI () (at Assets/RoadArchitect/Editor/GSDSplineNEditor.cs:463)
UnityEditor.UIElements.InspectorElement+<>c__DisplayClass59_0.b__0 () (at /home/bokken/buildslave/unity/build/External/MirroredPackageSources/com.unity.ui/Editor/Inspector/InspectorElement.cs:546)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&) (at /home/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:189)