Road Generator (WIP)

[Cesar]

Here is an other test example, I need to make some adjustement with the zebras roads width :

[Cesar]

Hello,

 

Here is an update with lot of bug fix and the crosswalks, the thing here was to make a planar projection with reference a specific point with its tangent :

 

 

[jacobite]

Looking Really Good CESAR. You must be dreaming of Splines and Points.

 

Jacobite

[HappyPolygon]

You can replace zebras with grass or pavement to make islands

[3D-Pangel]

This is really impressive work.  A couple of thoughts:

 

1) Some basic road design principles and/or design rules should be considered.  For example, there has to be a minimum radius of a round-about for cars exiting a highway at a certain speed or a minimum length of off-ramp that allows a car to stop safely when coming off a highway.    I tried to find a highway design rule book but while the internet has a lot of links, I could not find a simple list of design principles as a reference.  But I did find this site from the US Highway Department on "Geometric Design".  It just has lots of links to other documents.  So, while nothing straight forward, it may be a good place to start.

 

2) Banking.  You need to allow for the road to have a slight bank when making a turn --- especially if it is to be a highway with cars traveling at high speeds.

 

3) Libraries.  While the freedom to create "anything" is great, consider pulling in and connecting pre-defined libraries of intersections, exit ramps, entrance ramps, merges, one-way, 2-way, 4-lane, 3 lane, etc  pre-built assets.  Allow the user to build their own libraries with the tools you have already developed.  Here is where you could incorporate the necessary "banking" of a road or the highway design rules (if you can find them) as mentioned in 1 and 2.

 

4) You need to allow for the integration into the plugin "Real Traffic" which also starts with a spline.  These two plugins together would be an outstanding combination.  Real Traffic needs to have things defined to it as stops, turns, merges, etc. so it would be cool that as you "build" the road from you pre-defined assets (see Item 3), those assets also have the traffic rules built into them to get Real Traffic to simulate accurate traffic patterns.

 

Dave

[Cesar]

On 10/22/2023 at 5:05 AM, jacobite said:

Looking Really Good CESAR. You must be dreaming of Splines and Points.

 

Haha, if only you knew how right you are !

 

 

Indeed you can replace each texture by what you want !

 

 

You are totally right, Dave, for the moment there is no rules to make the roads, we can make any non-sens we want, and we need to specify each evidences.

 

This will be the next major step, to create a high level more user-frendly, by manipulating objects instead of splines that will automatically create the more logical spline between them, like in simcity games, then if we want to customize, we can convert it to object and edit the spline inside.

 

I think it will be the more complex because each country seems to have custom rules, the community will be a great help to that !

 

Indeed, the inclusion with RealTraffic can be possible, I will check that when the plugin will be more advanced.

 

I also think to make a website after the plugin, to create roads in a web app, without necessarily C4D.

 

 

Thanks for your messages, I am back from vacations and continue the work !

Some things to fix, then I will start to make central reservation and sidewalk and after that I will see to make a private alpha release to have some first feedback if some of you will be interested in testing.

[HappyPolygon]

1 hour ago, Cesar said:

if some of you will be interested in testing.

 

I'm in

[Cesar]

By the way, if you are interested about Bezier curve and spline, here is an interactive demo I made some times ago to understand how it works :

 

https://code.vonc.fr/courbe-de-bezier

 

Some fixes with the UV that are now better :

 

 

 

Some fun with weird roads :

 

 

 

[Cesar]

Hello,

 

Here is the first step of the central reservation and sidewalk :

 

 

[Cesar]

Here is an update with the profile, next will be the UV !

 

 

 

 

[Cesar]

UV are done !

[Mike A]

This whole project is looking very impressive Cesar!