magnificus/procedural-cities

master thesis

Procedural-Cities

This project aims to provide a framework and a solid implementation of different techniques for generating complete seamless procedural cities with interiors for all buildings.

Small demo: https://www.youtube.com/watch?v=n1eZOV8r_g4

This project was done as a master thesis at LTH, link to thesis is available here: http://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=8929185&fileOId=8929189

The source code is available to everyone under the MIT licence and you're very welcome to clone or fork the reposity, but keep in mind that it is mostly a proof-of-concept and the code is hardly optimized or refined.

Most parameters are accessible from the "Spawner" blueprint-class, one is spawned in the default map, so edit the values inside of that. Some parameters can be found in ProcMeshActorBP, PlotBuilderBP and HouseBuilderBP. The most interesting parameters to change might be length, maximum turn rate for roads and heatmap settings.

Starting the project generates the city, the defalt character can either walk (with collisions enabled) or fly (with collisions disabled), switch by pressing R.

Some pictures:

procedural-cities's Issues

Plugin

Hi!

Any chance to get this wrapped up in a plugin? :)

Nice work!

generete my own city

can I use it to generate a city from myself for example tokyu?

Dependency on non-maintained 3rd party library

Hi, I see that when trying to open the project in UE4 4.18, it's asking me to install a plugin https://github.com/Koderz/RuntimeMeshComponent.

In the UE Asset Store, this plugin has not been updated since UE 4.10.

Two questions:

1. How did you get this plugin working in your project?
2. Which UE4 engine version did you build this project with?

Can Launch UE4.25 project, but Magic Leap Structs have changed. Any Ideas how to fix this?

Looks like the structs for magic leap have changed so they don't match the format that this was originally programmed for. Any ideas how to get the description and transform information from the magic leap tracking mesh struct now?

Make procedurally generates meshes destructible

First off, this is an awesome project that’s been undertaken. Very nice.

But I do have a question.

Where would be the best place to hook into this code to allow for the runtime meshes generated to be made into destructible meshes, using the APEX plugin?

Thank you

Looping 360 the same value when calculation best rotation for initial FRoadSegment

Hi,

First of, what a great project!

I think I found a small bug though.

When you spawn the initial road in Spawner.cpp
You rotate 360 degrees to find the best rotation for the initial segment, however it doesn't use the calculated variable 'Testpoint'.

So currently it loops 360 times around point 0,0.
Which is pretty pointless (sorry couldn't resist the pun ;) )

Anyway this line:

Procedural-Cities/Source/City/Spawner.cpp

Line 370 in 9dd8a75

if (NoiseSingleton::getInstance()->noise(point.X, point.Y) > bestVal) {

All 'point' should be 'testPoint'. (also the line below it ofc)

Sidenote: Also NoiseSingleton::getInstance()->noise( is called twice, it might be better to store it in a temporary value to improve performance.

No Buildings Generated

It seem that no buildings are generated. I see streets, lights, and the things on top of buildings; but no buildings! When looking at the log I see a bunch of warning like this:

LogTemp: Warning: dist between start and end: 7150.078125
LogActor: Warning: ProcMeshActorBp_C /Game/FirstPersonCPP/Maps/UEDPIE_0_standardmap.standardmap:PersistentLevel.ProcMeshActorBp_C_688 has natively added scene component(s), but none of them were set as the actor's RootComponent - picking one arbitrarily
LogTemp: Warning: dist between start and end: 7150.046875
LogActor: Warning: ProcMeshActorBp_C /Game/FirstPersonCPP/Maps/UEDPIE_0_standardmap.standardmap:PersistentLevel.ProcMeshActorBp_C_689 has natively added scene component(s), but none of them were set as the actor's RootComponent - picking one arbitrarily
LogTemp: Warning: dist between start and end: 7150.045898
LogActor: Warning: ProcMeshActorBp_C /Game/FirstPersonCPP/Maps/UEDPIE_0_standardmap.standardmap:PersistentLevel.ProcMeshActorBp_C_690 has natively added scene component(s), but none of them were set as the actor's RootComponent - picking one arbitrarily
LogTemp: Warning: dist between start and end: 7150.028320
LogActor: Warning: ProcMeshActorBp_C /Game/FirstPersonCPP/Maps/UEDPIE_0_standardmap.standardmap:PersistentLevel.ProcMeshActorBp_C_691 has natively added scene component(s), but none of them were set as the actor's RootComponent - picking one arbitrarily
LogTemp: Warning: dist between start and end: 9049.761719

I'm running 4.20.3. Pulled from master today.

Plugin Or Just a Project?

Plugin Or Just a Project??

Please help! Can't download nor clone repo.

Procedural

Great Tool really, thanks for sharing it!!
I have some questions.First, Is this only generated runtime??I mean, if i want to use this , i must make them fixed (So, Can I turn the whole city to static meshes?? Or If given heatmaps, Is the city generated the same each runtime??Second, I can not generate interiors , this is strange. Does it need some settings to generate interiors?? Can you give some tutorials about this software?
Thank you very much and again, Great work

Building your project

Hi!

Your project looks great, but I cannot seem to get it to compile on Ubuntu 18.04 targeting Unreal Engine 4.19.

My error messages are:

error: '&&' within '||' [-Werror,-Wlogical-op-parentheses]
error: call to 'abs' is ambiguous

I do not really care about UE's version so if you got it to work with a precise version I'd be willing to give it a shot.

Screenshots from the blueprints

Well, I'll share this with you, maybe somebody can find this useful.

I'm a Unity3D dev and I don't have the possibility to have Unreal Engine on all of my computers, as long as I port the code of this project, but is nice to have a screenshot to follow the flow of this application in order to port it.

RoadGeneration until PlotGeneration

PlotGeneration until House placement:

Maybe I'm missing Room generation.

more a question.. :)

with what version is this one made ?