Weather

The second rollout on the Environment tab is Weather, parameter settings are included: cloud, fog, wind, precipitation and milky way .

Cloud

The parametric cloud system is used in conjunction with the geographic sky system to freely control the effect of clouds in the sky.

Amount

Controls the area and volume of clouds in the sky. The higher the value, the more clouds there are and the thicker the cloud layer.

Thickness

Controls the thickness of low-level clouds in the sky. The larger the value of the control, the larger the thickness of the volumetric cloud.

Density

Controls the sparseness of low-level clouds in the sky.

Height

Controls both the height position of the beginning appearance of low and high level clouds in the sky.

Speed

Control the speed of the cloud. Note that you have to turn on "Realtime" in the "Display mode" in the upper right corner of the viewport to preview the cloud movement.

The higher the value, the faster the cloud is moving.

Direction

Control the forward direction of the cloud, the control value range is 0°-360°, when previewing, please make sure the cloud has a certain initial movement speed, and turn on the "Realtime" display mode.

Cast Shadow

One click to enable it, the clouds will affect the lighting effects in the scene after it is turned on, and the clouds will create projection effects.

Fog

Control the fog effect in the scene to add realism and depth to the scene.

Color

Click the color slot to open the color picker and change the color of the fog. When the color is warm, it will produce a desert-like, smog effect. When the color is cooler, it will produce a water vapor-like effect.

Density

Controls how dense the fog effect is. The higher the value, the thicker the fog.

Height

Controls the location of the height at which the fog appears. At higher values of the falloff control, the change in fog height is more noticeable.

Falloff

Controls the rate at which the fog falls off in the height direction. The higher the value, the faster the fall off, while the lower the value, the softer the transition of the fog in the vertical direction.

Start Distance

Controls the starting position of the fog relative to the distance from the camera. The larger the value of the control, the further away the fog appears from the camera position.

Volume Light

Light is scattered by particles in the air, making light paths visible. This effect is also often referred to as "God Ray".

Scattering

Controls the distribution of the volume light scattering effect. The default value of 0 makes the fog uniformly bright, and adjusting it to 1 makes the fog from the direction of the light source brighter.

Wind

Strength

Control the wind movement effect of the plant. The higher the value, the more obvious the wind-driven effect.

Direction

Freely change the wind direction, the control value range is 0°-360°.

Precipitation (Rain and Snow)

Precipitation Contains snow and rain system , with adjustable strength and puddle effects.

Rain and snow parameters

Switch weather effects and transition states through the Rain and Snow slide bar. The precipitation velocity gets higher when the value is closer to both ends.

Note:

This feature can be displayed in real time only in Dynamic state.

Strength

We can adjust the Strength parameter to control the size and density of raindrops or snowflakes in the sky, from light drizzle to full-blown downpour, from winter flurry to whiteout blizzard, or even sleet if you want.

Puddle

Ponding parameter is to control the degree of the ground affected by precipitation. The greater the value, the greater the ponding or snow on the ground. There is no ponding or snow when the value is 0.

Raindrop Transparency

Customize the transparency of the rain line as the effect requires. The smaller the value, the more transparent the rain line will be.

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

Snow Flake Size

Customize the size of the snowflake as the effect requires, the larger the value, the larger the snowflake size.

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

Water Mist & Density

Simulates water mist in humid air to enhance the realism of rainy day scenes. The larger the density parameter, the more intense the water mist will be.

Milky Way

Adjust the brightness and angle of Milky Way as needed to enhance the realism of the night sky. Supports adjusting intensity and rotation.