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.
Note: Cloud parameters do not support video shot keyframes. In each video clip, the cloud effect always follows the cloud parameters set in the first shot.
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.
Turning on Volume Light option will increase GPU memory consumption.
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.
Note:
Due to the changes in the rain and snow effects in version 2.10, the rain, snow and puddle effects may change when opening old archives (archives from versions before 2.10) in version 2.10 Client, so users need to manually re-adjust them or continue to use previous versions of Client.
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.
Note
Milky Way is only displayed in night environments.
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