3D Randomly Generated World

[Longarmx]

Inspired by The Fog - Survive, State of Fortune, Far Sky, and many others, I have created a 3d randomly generated world using simplex noise in a couple days. All you can do right now is walk(or fly) around and generate new terrain. Current frame rate for me is ~90 230 1500 fps! I am curious as to what others are getting.

[Controls]
LMB/RMB - grab/release mouse cursor
WASD - movement
E - toggle flying
Q - fly supersonic
R - reload world with current settings
L; - decrease or increase persistence
,. - decrease or increase the largest feature
[] - decrease or increase the view distance
CTRL - zoom
ESC - quit

Current Version: 0.0.3.1 - Mac and Linux unstable
[Download]

[Latest Update]
-Text Rendering how I intended it!
-Opengl V: 3.0 crash fixed!
-FPS counter!
-Hold Q to fly supersonic!



Any criticism or feedback is appreciated.

[Longarmx]

[V0.0.2]
-Major Performance improvement
-Now normals are calculated only once per vertex (removes some artifacts)
-Chunk loading system (very large maps now possible)

[NegativeZero]

I had a bit of a blast in it, I found it to be very smooth!

I really like the texture you've got going on for the grass, it makes it seem nicer than a lot of grass textures you see around.
It kinda reminded me of this:



Although, I found that when I looked as far down as I could, the world starting glitching a bit.

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[wessles]

I think you forgot something about linux with the natives.

[Longarmx]

@NegativeZero Yes, that's the picture I thought of too  I'm trying to fix the camera issue, I just need to limit how far you can look down because when you get past looking straight down, your view flips and it glitches around.

@Wessles
Try to download again. I updated lwjgl and the natives. I also grouped all the natives in a single folder.

[wessles]

Unfortunately, still the same error

[Longarmx]

@Wessles That's strange, I'm loading the natives directly with this code:

1   2   3

final String userDir = System.getProperty("user.dir");        final String nativeLibDir = userDir + File.separator + "native";        System.setProperty("org.lwjgl.librarypath", nativeLibDir);

Edit: That's strange, now I can't run the jar on windows. Same error. (It runs in eclipse though)

[Longarmx]

Ok, try one more time. If this doesn't work, then I don't have any idea on how to fix it.

[Simn]

Wait, why are you setting the natives path to the "user.dir" directory? That refers to the user directory in the file system, not where the jar is located.

[Longarmx]

It seems to work fine for me, wherever I put the jar.

C:\Users\Longarmx\Documents\workspace\Simplex Noise\native\windows\

Is there a different property I should use?

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[Simn]

Sorry, read a bit fast; "user.dir" is the property to use, but on OS X it fails:

1	java.lang.UnsatisfiedLinkError: Can't load library: /Users/simn/native/macosx//liblwjgl.dylib

[Simn]

It seems like the JVM gets run from /Users/user in OS X no matter what (that leads to every path from the directory of the jar to be referred to the home directory). I advice you to use JarSplice or place the natives at a temporary directory like "java.io.tmpdir" and load them from there.

[Longarmx]

Sorry about that. It seems that the smallest of errors get past me (double file separator). Try the download again. Hopefully I'll eventually get this right 

[Simn]

Lol, just totally forget what I said.

When I do:

1	java -jar /Users/simn/Downloads/3D\ World/3D\ World.jar

It starts the JVM from /Users because that's the current directory I'm inside.

When I do:

1	cd /Users/simn/Downloads/3D\ World

And then do:

1	java -jar 3D\ World.jar

It starts the JVM from that directory and "user.dir" refers to that directory. (I feel so stupid now).

I only get an error saying that the shader version 330 is not supported, did you forget to create the display with the core profile enabled?

[Longarmx]

When I create the display with core profile enabled (version 3.2), I just get a blank screen.

[Simn]

Hmm, that could be anything...

Try to make a small OpenGL application and see if it works, it's for sure a small problem somewhere.

[Longarmx]

Simn, what OpenGL version do you have? This application requires V3.3

[Simn]

I have support for 4.1 and minor.

[Longarmx]

Okay Simn, I got core profile enabled. Apparently you can't call glEnable(GL_TEXTURE_2D) Hopefully it works this time.

[Version 0.0.2.4]
-Reorganized engine so it is loading correct natives
-Core profile enabled with opengl version 3.3

[wessles]

Same errors. I would suggest the following:

- Start over on the .jar file
- Use a fat .jar creator
- Profit

-wes

[Longarmx]

Hmm. Just tried it on my mac (has support for 3.3) and got the same error as Simn. I don't know how to fix this error because it doesn't seem like anything is wrong. If anyone has any idea, could they please share. I will continue trying to find the cause of this problem on my own.

@Wessles
I don't think that creating a fat jar will solve any problems. The problem is not locating the files.

[HeroesGraveDev]

If you're using

System.getProperty("user.dir");

you will get errors if you try to double-click launch on Mac/Linux.

Solution:

1   2   3   4   5   6   7   8   9   10   11   12

public static String jarDir()    {       try       {          return new File(SomeClass.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();       }       catch(URISyntaxException e)       {          e.printStackTrace();          return null;       }    }

[AullenVerch]

Yeah, it appears I am having the same issues in mac too.. :/

[Sickan]

If you're using

System.getProperty("user.dir");

you will get errors if you try to double-click launch on Mac/Linux.

Solution:

1   2   3   4   5   6   7   8   9   10   11   12

public static String jarDir()    {       try       {          return new File(SomeClass.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();       }       catch(URISyntaxException e)       {          e.printStackTrace();          return null;       }    }

I thought

1	new File(SomeClass.class.getProtectionDomain().getCodeSource().getLocation().toURI()).getParent();

was a joke the first time I read it, but apparently it's legitimate. Java's such a complicated and bureaucratic platform - maybe that's why companies like it?

[Zeke]

Could you make a version for those of us with OpenGL 3? #130 for shader

Thank you!

[Longarmx]

@Zeke

There you go. Link in the 1st post   I tested it to the best of my abilities on an opengl 4.3 computer so I am interested in your feedback.

[Zeke]

Log file:

Using Java Version: 1.7.0_45
OS: Windows
Using OpenGL Version: 3.0.0 - Build 8.15.10.2291
Loading Texture: grass13.png

Status: Works great!

Thanks for fixing that. That is really awesome. Is the code on github?

Also, do you use matrix transforms for camera? It seems like it... I really want to learn to get away from that, never learned to use quaternions... really want to.

[Longarmx]

@Zeke

Thanks for the feedback!

Check out my signature for my github page.

The base engine is a modified version of this tutorial, written in LWJGL. There are dedicated camera and quaternion classes that you can check out if you feel the urge.

[Longarmx]

[V 0.0.3]
-Text Rendering!
-Spritesheets/Texture Regions!
-Press ctrl to zoom!
-[] to decrease and increase render distance!

[Longarmx]

[V 0.0.3.1]
-Text Rendering how I intended it!
-Opengl V: 3.0 crash fixed!
-FPS counter!
-Hold Q to fly supersonic!

The world is collapsing!