Open topic with navigation
The Planetary environment type is a flexible Nishita sky model. It is most useful when rendering scenes as they are seen from outer space. For its effects to be visible, the camera has to have a very high Altitude value as it moves to outer space to view the expansive horizon of the planetary body. It takes into account the conditions within and beyond the atmosphere of a planetary body (like Earth) and its surroundings in space. Instead of a single ground color and a sky/sunset color, there is a planetary surface that reflects and emits light. This Node extends the Environment's Medium (volume rendering and subsurface scattering) with an atmospheric scattering through the planetary body's atmosphere. Here, the atmosphere is perceived as a layer of gas surrounding a planetary mass, and it is held in place because of gravity so as the light travels into atmosphere either from the outer layer to the ground or from a light source within the atmosphere, then the atmosphere's density is sampled along the ray at regular intervals, resulting in an amount of scattering based on the atmosphere's density.
Figure 1: A scene rendered using the Planetary environment, where the camera is set at a very high altitude
Planetary Environment Parameters
- On/Off - Toggles this light type on and off.
- Kind - The main option is the default option, and it renders everything in the environment. The Visible option activates the Backplate, Reflections, and Refractions parameters. You can use this option to separate foreground and background elements for compositing.
- Backplate - Generates a cutout rendering where foreground elements are positioned in the scene.
- Reflections - Generates the Planetary environment in scene object reflections.
- Refractions - Generates the Planetary environment in scene object refractions.
- Use Dummy Direction - When active, the Planetary environment uses the dummy Sun object in the Viewport to determine the sun's direction.
- Longitude/Latitude - These options become available when you disable Use Dummy Direction. These work with the geo-based longitude and latitude values to determine the sun's direction.
- Month/Day/Hour/GMT Offset - These options become available when you disable Use Dummy Direction. These work with the Longitude/Latitude settings to determine the sun's direction.
- Ground Albedo - The planet's Surface texture map.
- Ground Reflection - The planet's texture map.
- Ground Glossiness - The planetary glossiness.
- Ground Emission - The planet's Surface texture map at nighttime.
- Ground Normal Map - The planet's Normal map.
- Ground Elevation - The planet's Elevation map.
- Planetary Axis - The planet's rotational axis running through the North and South Poles.
- Planetary Angle - The rotation around the planetary axis.
Open topic with navigation