Inherits: Sky < Resource < Reference < Object

Type of Sky that is generated procedurally based on user input parameters.


ProceduralSky provides a way to create an effective background quickly by defining procedural parameters for the sun, the sky and the ground. The sky and ground are very similar, they are defined by a color at the horizon, another color, and finally an easing curve to interpolate between these two colors. Similarly, the sun is described by a position in the sky, a color, and an easing curve. However, the sun also defines a minimum and maximum angle, these two values define at what distance the easing curve begins and ends from the sun, and thus end up defining the size of the sun in the sky.

The ProceduralSky is updated on the CPU after the parameters change. It is stored in a texture and then displayed as a background in the scene. This makes it relatively unsuitable for real-time updates during gameplay. However, with a small enough texture size, it can still be updated relatively frequently, as it is updated on a background thread when multi-threading is available.


Color ground_bottom_color Color( 0.156863, 0.184314, 0.211765, 1 )
float ground_curve 0.02
float ground_energy 1.0
Color ground_horizon_color Color( 0.423529, 0.396078, 0.372549, 1 )
float sky_curve 0.09
float sky_energy 1.0
Color sky_horizon_color Color( 0.839216, 0.917647, 0.980392, 1 )
Color sky_top_color Color( 0.647059, 0.839216, 0.945098, 1 )
float sun_angle_max 100.0
float sun_angle_min 1.0
Color sun_color Color( 1, 1, 1, 1 )
float sun_curve 0.05
float sun_energy 1.0
float sun_latitude 35.0
float sun_longitude 0.0
TextureSize texture_size 2


enum TextureSize:

  • TEXTURE_SIZE_256 = 0 --- Sky texture will be 256x128.
  • TEXTURE_SIZE_512 = 1 --- Sky texture will be 512x256.
  • TEXTURE_SIZE_1024 = 2 --- Sky texture will be 1024x512. This is the default size.
  • TEXTURE_SIZE_2048 = 3 --- Sky texture will be 2048x1024.
  • TEXTURE_SIZE_4096 = 4 --- Sky texture will be 4096x2048.
  • TEXTURE_SIZE_MAX = 5 --- Represents the size of the TextureSize enum.

Property Descriptions

  • Color ground_bottom_color
Default Color( 0.156863, 0.184314, 0.211765, 1 )
Setter set_ground_bottom_color(value)
Getter get_ground_bottom_color()

Color of the ground at the bottom.

Default 0.02
Setter set_ground_curve(value)
Getter get_ground_curve()

How quickly the ground_horizon_color fades into the ground_bottom_color.

Default 1.0
Setter set_ground_energy(value)
Getter get_ground_energy()

Amount of energy contribution from the ground.

  • Color ground_horizon_color
Default Color( 0.423529, 0.396078, 0.372549, 1 )
Setter set_ground_horizon_color(value)
Getter get_ground_horizon_color()

Color of the ground at the horizon.

Default 0.09
Setter set_sky_curve(value)
Getter get_sky_curve()

How quickly the sky_horizon_color fades into the sky_top_color.

Default 1.0
Setter set_sky_energy(value)
Getter get_sky_energy()

Amount of energy contribution from the sky.

  • Color sky_horizon_color
Default Color( 0.839216, 0.917647, 0.980392, 1 )
Setter set_sky_horizon_color(value)
Getter get_sky_horizon_color()

Color of the sky at the horizon.

Default Color( 0.647059, 0.839216, 0.945098, 1 )
Setter set_sky_top_color(value)
Getter get_sky_top_color()

Color of the sky at the top.

Default 100.0
Setter set_sun_angle_max(value)
Getter get_sun_angle_max()

Distance from center of sun where it fades out completely.

Default 1.0
Setter set_sun_angle_min(value)
Getter get_sun_angle_min()

Distance from sun where it goes from solid to starting to fade.

Default Color( 1, 1, 1, 1 )
Setter set_sun_color(value)
Getter get_sun_color()

The sun's color.

Default 0.05
Setter set_sun_curve(value)
Getter get_sun_curve()

How quickly the sun fades away between sun_angle_min and sun_angle_max.

Default 1.0
Setter set_sun_energy(value)
Getter get_sun_energy()

Amount of energy contribution from the sun.

Default 35.0
Setter set_sun_latitude(value)
Getter get_sun_latitude()

The sun's height using polar coordinates.

Default 0.0
Setter set_sun_longitude(value)
Getter get_sun_longitude()

The direction of the sun using polar coordinates.

Default 2
Setter set_texture_size(value)
Getter get_texture_size()

Size of Texture that the ProceduralSky will generate. The size is set using TextureSize.