Oolite Bulletins

submersible wrote:

[I've noticed too that planetinfo.plist "texture"="my_texture.png"; yields a planet with the default white material - no errors in log. This is plaguing my effort with materials and shaders too which are now exhibiting the same problem. I suspect I'm calling [_planetDrawable setMaterial] either at the wrong time , or that somehow the material is destroyed before planetDrawable renderOpaqueParts is called.

Kaks wrote:

I haven't got round to see what happens there yet, but chances are that whenever you assign a texture the atmosphere is recreated as a white blanket covering the perfectly rendered texture underneath...

Ahruman wrote:

By the way, have you guys played with the PERLIN_3D macro? That mode was intended to be the “real” new planets; as far as I remember it was turned off because I was researching faster 3D noise functions. (3D noise doesn’t have distortion problems towards the poles, and it can be mapped onto cube maps more usefully than the current approach.)

Kaks wrote:

Haven't touched the noise generator yet, just working towards getting the other wrinkles (like the Mysterious White Balls) ironed out at the moment!

"0 47" = {
  texture = "some_texture.png";
  atmosphere_texture = "some_atmosphere.png";
  materials = {
    "some_texture.png" = { // some_texture.png becomes the fallback diffuse map
        diffuse_map = "special_some_texture.png";
    };
    "some_atmosphere.png" = { 
        diffuse_map = "some_atmosphere.png";
        specular_map = { name="some_atmosphere.png"; extract_channel="a"; };
    };
  };
  shaders = {
    "some_texture.png" = {
      /* vertex_shader fragment_shader , etc
    };
  };
};

• Support both 'texture' and 'atmosphere_texture' as planetinfo.plist keys for a planet
• Add JS binding for 'setAtmosphereTexture' ala 'setTexture'
• Split setTextureFileName / setUpPlanetFromTexture into surface and atmosphere specific methods
• Use the given 'texture' or 'atmosphere_texture' as the key to look for 'materials' and 'shaders' in the planet's dictionary
• Shader Uniform binding for radius/atmosphere_radius

submersible wrote:

Quick screenshot from my working copy with what I believe is the world's least optimized atmosphere shader.

Griff wrote:

Oo, that looks great! I've got to admit i always get a little shiver of excitement when i see this thread bumped back up the board

submersible wrote:

Well you'll certainly like these shots of a modified griff_earth.fragment (minus the rimlight) , with a tasty atmosphere. I think I have the directional scattering part working now too which makes for a nice sunrise.

Disembodied wrote:

submersible wrote:

Well you'll certainly like these shots of a modified griff_earth.fragment (minus the rimlight) , with a tasty atmosphere. I think I have the directional scattering part working now too which makes for a nice sunrise.

Outstanding. The only problem I foresee is getting people to tear themselves away from the view long enough to play the game!