Procedural planet generator

User Code & Projects
1

DEMO HERE:

http://anykeyh.developpez.com/pgen.jnlp



SOURCES HERE:

http://anykeyh.ftp-developpez.com/current/pgen-src.rar



Who say Java is too slow for beautiful realtime 3d?  :smiley:











Here is a procedural planet generator.

I generate heightmap, texture map, normal map and specular map.



For each planet I use three pass: one for the planet and 2 for the atmosphere (front & back side).



Actually, I’ve only write the earth and mars palette color, but another comes soon :wink:

3 Likes
2

Very impressive.  What kind of framerates are you pushing with that?

3

Pretty kickass. Are the clouds pregenerated?

Also, are you using jME terrain generation and then mapping to a sphere, or are you using your own heightmap generation algorithm?

4

chirstius :

  • 140fps on 8800GTS with terrain in 2048x2048
  • 70fps on ATI mobility X700, but with textures in 512x512 (64mb in card memory…)

    Time to generate all textures is ~22 seconds for 2048x2048 textures on a Core 2 Duo processor (generator is multithreaded), ~40 secs one simple core processor. But 512x512 terrain take less than 5 seconds to be generated.



    Momoko_Fan: All are generated proceduraly… except the clouds  :// (the best texture in this pictures ^^). Clouds are downloaded from Celestia motherlode. But the shadows of cloud on the ground is builds by the shader program!
5

Nice.  The Earth looks incredibly good.  Any way to store the generated textures rather than recreating new all the time?

6

That is awesome.

7

Nice work …

8

wow, beautiful



do you have a webstart demo somewhere ?

i'd like to see it in realtime.

9

Ok I will see how java webstart works and how make a demo :wink:

10

wow, that looks great! Can't wait for the demo… :slight_smile:

11

http://anykeyh.developpez.com/pgen.jnlp



The texture generation is 1024x1024 in this demo (just a bit less details than screenshot)

12
anykeyh said:

http://anykeyh.developpez.com/pgen.jnlp

The texture generation is 1024x1024 in this demo (just a bit less details than screenshot)


You must wait 7/8 seconds on bicore process and ~15sec. On mono core (I haven't make a wait screen ^^)
13

Very nice! But there is one issue on my system (Geforce Go 7400): the atmosphere sphere seems to be clipped at the camera's z position.

Maybe bounding volumes for planet and atmosphere can fix that?

Also there's an updateRenderState missing, the fps text shows with the planet's states still active - looks quite cool though :smiley:

14

Looks great, does it really require JDK 1.6+? If not, you should set it to 1.5 so I can run it from this macbook. :slight_smile:




15
hevee said:

Very nice! But there is one issue on my system (Geforce Go 7400): the atmosphere sphere seems to be clipped at the camera's z position.
Maybe bounding volumes for planet and atmosphere can fix that?
Also there's an updateRenderState missing, the fps text shows with the planet's states still active - looks quite cool though :D


I have the same problem with fps text. But I don't know why atmosphere is clipped... Do you have a screenshot?

Looks great, does it really require JDK 1.6+? If not, you should set it to 1.5 so I can run it from this macbook.



I have rebuild the source without some Java 6 annotations and updated the jnlp, you can retry now ;)
16



Doesn't look as good as in the screenshots  :(
17

very sweet!

I didn't get any fps, because it was garled, like momoko_fan's screenshot

18

What are the graphics cards requirements for this?



Endolf

19

You need a card with GLSL (Pixelshader 2.0) support… for nVidia this is anything better than GeForce FX 5200 (my shader-hating card).

Btw, I am getting about 10 fps on this test; can't say exactly because the planet's texture bleeds on the text.

20
Endolf said:

What are the graphics cards requirements for this?

Endolf


i get 20 FPS in 1280 x 1024 (about 10 FPS when i go near)

about 30-50 FPS in 800x600 (20 FPS when i go near)

thats on a 1,8 Ghz Core Duo / ATI Mobility x300