How to adjust the weather in D5?

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The second item in the "Environment" panel on the right sidebar contains three settings for the weather: cloud, fog and wind.


The Parametric Cloud System is used in conjunction with the Geo-Sky System to control the effect of clouds in the sky. Currently there are two layers: low level clouds and high level clouds.

Cloud Amount

Amount controls the area and volume of clouds in the sky; the larger the value of the control, the more clouds there are and the thicker the cloud cover.


Thickness controls the thickness of low-level clouds in the sky; the larger the value of the control, the greater the thickness of the volumetric cloud.


Density controls the sparseness of low-level clouds in the sky.


Height simultaneously controls the height position at which low and high level clouds begin to appear in the sky.


Speed controls the speed of cloud movement. Please note that you need to turn on "Dynamic" in the "Display Mode" in the upper right corner of the view to preview the cloud's movement. The larger the value of the control, the faster the cloud speed.


It can control the cloud's direction of travel freely, and the control values range from 0° to 360°. When previewing, please make sure that the cloud has some initial speed and that the "Dynamic" display mode is enabled.

Cloud parameters are not supported for video shot keyframes. In each video clip, the cloud effect is always set according to the cloud parameters in the last updated shot.

Cast shadow

Cast shadow can be switched on with a single click. When Cast shadow is turned on the clouds will affect the lighting effects in the scene and the clouds will create a projection effect.


Fog controls the fog effect in the scene, adding realism and layers to the scene.


Click on the colour slot to open the colour picker and change the colour of the fog. When the colour is on the warm side, it produces a desert-like, hazy effect. A cooler colour produces a water vapour-like effect.


Controls the sparseness of the fog effect. The higher the control value, the denser the fog.


Height controls the height at which the fog appears. At higher values of the Falloff control, the change in fog height is more pronounced.


Falloff controls the rate of fog decay in the height direction, the higher the value, the faster the decay; the lower the value, the softer the transition in the vertical direction.

Start Distance

Start Distance controls the start position of the fog relative to the distance from the camera, the larger the value of the control, the further away from the camera position the fog appears.

Volume Light

The Tyndall effect is a phenomenon in which light is scattered by particles in the air, allowing pathways of light to be seen. The Tyndall effect is often referred to as "God's light".


Controls the scattering distribution of the Volume Light scattering effect. The default value is 0 for a uniformly light fog, adjusting it to 1 will make the fog brighter from the direction of the light source.

Turning on the "Volume Light" option will increase the memory usage.


Wind strength.

Wind strength affects the intensity of the effect of wind movement of plants. The larger the value, the more pronounced the effect of wind movement.

Wind Direction

This parameter allows you to freely change the wind direction, and the control value ranges from 0° to 360°.

Please enable Dynamic in the display mode to preview the wind effect.


Precipitation function includes both rain and snow. Support to adjust the strength of rain and snow and the effect of water on the ground.

Parameters for rain and snow

You can directly change the weather effect and transition state by adjusting Parameters for rain and snow. At the same time, the more the values are biased towards the ends, the greater the particle speed of the precipitation.


Strength is used to control both the size and density of raindrops or snowflakes in the sky. It is possible to simulate the process from light to heavy rain, rain to snow, and light to heavy snow.


Puddle adjusts how much the ground is affected by precipitation. A value of 0 means that there is no effect of water or snow on the ground, the larger the value the greater the degree of water or snow on the ground.

Snow Flake Size

You can customise the size of the snowflake according to the need of effect, the higher the value, the bigger the snowflake size is.

Note: This parameter is permanent and does not affect the effect of rain.

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