Variables¶
Variable |
Definition |
Value |
|---|---|---|
Sea Level Deg. C |
For infra-red rendering. |
-273.0 to 1000 |
Zenith |
Colour of the Zenith (Sky above you). See Sky Colours |
RGB |
Horizon |
Colour of the Horizon (Sky around you). |
RGB |
Variable |
Definition |
Value |
|---|---|---|
Loop |
If the sky should loop the first day. The loop can be seen on the timeline, indicated by a yellow bracket above the Sky Layer. |
Bool |
Variable |
Definition |
Value |
|---|---|---|
Sky Multiplier |
Multiplier to scale the brightness of the Sky. |
1 to 100 |
Atmosphere¶
Variable |
Definition |
Value |
|---|---|---|
Planet Radius |
Radius of the planet in meters. |
100 to 100000 |
Atmosphere Thickness |
Thickness of the Atmosphere in Km. |
10 to 1000 |
Ozone |
Ozone level of the atmosphere. |
0 to 0.2 |
Emissivity |
Emissivity of the Atmosphere. |
0 to 1 |
Rayleigh Coefficient |
Rayleigh scattering coefficients at standard sea level density, xyz = RGB. Can be calculated based on wavelength with Auto Button. |
0 to 10000 |
Variable |
Definition |
Value |
|---|---|---|
Atmospherics Amortization |
How to spread the cost of rendering atmospherics over frames. Similar to Cloud Amortization. |
1 to 8 |
Sun¶
Variable |
Definition |
Value |
|---|---|---|
Automatic Sun Position |
Whether to calculate sun’s position to be Geographically Accurate. Disable to set the position manually. |
Bool |
Variable |
Definition |
Value |
|---|---|---|
Light Wavelength (R,G,B) |
Wavelength of the light from the sun. |
0 to 1000 |
Irradiance |
Irradiance of the Sun, in Watts/m2/nm. XYZ=RGB. |
0 to 50 |
Diameter |
Size of sun’s radius in degrees. |
0.0 to 3600.0 |
Link Keyframe time and daytime |
Bool |
|
Time Zone |
Time Zone based on Greenwich Mean Time (GMT). |
Between -12.0 and 12.0 |
Start Date |
For calculating position of sun/moon. Where 01/01/2000 = 0 , -1 = 31/12/1999, 01/01/2016 = 5844(format DD:MM:YYYY). |
-100000 to 100000 |
Variable |
Definition |
Value |
|---|---|---|
Sun Multiplier |
Multiplier to scale the brightness of sunlight in the scene. |
From 1 to 10 |
Max Sun Radiance |
Maximum Sun radiance produced. |
0 to 1000000.0 |
Adjust Sun Radiance |
If enabled, adjusting the Sun radiance will cause the sun to automatically scale to keep spectral irradiance the same. |
Bool |
Moon (Legacy 4.1 System)¶
The moon has a customisable texture, so you can use it to make some interesting effects! This is a legacy system found in 4.1a and 4.2 versions of the plugin)
Variable |
Definition |
Value |
|---|---|---|
Automatic Moon Position |
Whether to calculate moon position from date and time. |
Bool |
Variable |
Definition |
Value |
|---|---|---|
Albedo |
The proportion of the incident light that is reflected by a surface. |
0.0 to 1.0 |
Diameter |
Size of moon’s radius in degrees |
0.0 to 3600.0 |
Colour |
Colour of the moon. Uses a colour wheel, can also input HTML Colour Code. |
RGB |
Variable |
Definition |
Value |
|---|---|---|
Moon texture |
Texture to use for the Moon. trueSKY has a moon texture by default. |
.png |
Moon Multiplier |
Brightness multiplier for the Moon. |
0.0 to 10.0 |
Moon (Multi Moon - 4.2a+)¶
This system is found in the latest versions of trueSKY and allows for multiple moons and extensive customisation of both the moons and their orbital paths. Documentation on Moons is available here
Variable |
Definition |
Value |
|---|---|---|
Name |
Allows for assigning a name for each Moon within the scene. This help differentiate between multiple Moons. |
text |
Texture |
2D Texture to use for the Moon. |
.png |
Name |
Allows for assigning a name for each Moon within the scene. This help differentiate between multiple Moons. |
text |
Colour |
Affects the texture of the Moon and the light that is reflected off of it. |
RGB |
Use Preset |
Allows you to use one of the preset Moon templates. Checking this will cause all your currently setting to be overridden. |
Bool |
Moon Preset |
Changes all of the settings within the Moon array element to a series of preassigned values. |
Dropdown |
Albedo |
Controls the proportion of light that is reflected by the Moon. |
0.0 to 10.0 |
Longitude of the Acending Node |
The points in which the Moon crosses the plane of the equator. |
0.0 to 360.0 |
Longitude of Ascending Node Rate |
The amount the ascending node increases each day (24 hour period). |
0.0 to 10.0 |
Inclination |
This controls the tilt angle of the orbit. |
0.0 to 360.0 |
Argument of Pericentre |
The closest point of that the Moon is to the Earth’s surface. |
0.0 to 360.0 |
Argument of Pericentre Rate |
How much the argument of the pericentre changes per day. |
0.0 to 10.0 |
Mean Distance |
The mean (average) distance the Moon is from the center of the Earth. |
0.0 to 100.0 |
Eccentricity |
Controls how elliptical the orbit of the Moon will be around the Earth. |
0.0 to 1.0 |
Mean Anomaly |
The position that the Moon will be around its orbit at midnight of each day. |
0.0 to 360.0 |
Mean Anomaly Rate |
Controls how much the mean anomaly changes each day. |
0.0 to 10.0 |
Radius Arc Minutes |
Controls the apparent size of the Moon when visualized from the surface of the Earth. |
0.0 to 1000.0 |
Stars¶
Variable |
Definition |
Value |
|---|---|---|
Max Magnitude |
Maximum Magnitude of stars. |
0.0 to 9.0 |
Brightness |
Star Brightness. |
1.0 to 10000.0 |
Minimum Pixel Size |
Minimum size of each star. |
1.0 to 10000.0 |
Background |
Brightness multiplier for background texture. |
0.000001 to 0.001 |
Find Constellation |
Out for Repairs |
Out for Repairs |
Variable |
Definition |
Value |
|---|---|---|
Cosmic Background Texture |
Texture to appear for the night sky. Default is an image of the Milky way. |
.png |
Minimum Star Pixel Size |
Minimum pixel size of stars in the sky. If set to 0 they are drawn as point, otherwise as quads. Does not affect the Sun. |
0 to |
Fog¶
A keyframe’s haze value determines how much Mie-scattered haze (i.e. mist or fog) is present. Haze is considered to have a density that falls-off exponentially with altitude, so the HazeScaleHeightKm property determines the scaling height for this exponential. TheHazeBaseHeightKm is also used. Below this height, full haze is applied.
Variable |
Definition |
Value |
|---|---|---|
Visibility |
Visibility controls haze/fog, represents visibility at sea level. |
0.1 to 10000 |
Haze/fog |
Amount of haze/mist. |
0.00001 to 1000.0. |
Haze Base |
Base altitude above which haze decreases in density. |
-2.0 to 20.0. |
Haze Scale |
Vertical scale over which haze reduces with altitude. |
0.1 to 10.0. |
Eccentricity |
Anisotropy of Mie scattering. |
0.0 to 1.0. |
Ground Fog |
Strength of ground fog. |
0.0 to 10.0. |
Fog Ceiling |
Fog Ceiling in Km. |
0 to 10. |
Mie Coefficients |
Mie scattering coefficients. XYZ = RGB. |
0 to 50 |