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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.

Clouds

This section contains settings for clouds.

Clouds Settings
Enabled Toggles rendering of clouds on and off.
Fix Coverage Tiling Toggles tiling reduction for the clouds coverage texture on and off. Such tiling becomes noticeable in large-scale worlds when observing clouds at significant distances. This option controls tiling reduction enabled per-material.
Notice
When enabled, additional texture fetching is performed, which affects performance, so use it wisely.
Sampling Quality The number of noise samples used. This parameter affects cloud density. The following values are available:
  • Low — 1 sample, low quality (higher density)
  • Medium — 3 samples, medium quality (by default)
  • High — 5 samples, high quality
  • Ultra — 6 samples, ultra quality (lower density, the clouds are softer)
Notice
Visual difference between low and ultra quality is not significant. Therefore, it is recommended to use low settings, when possible, to gain performance.
Lighting Quality The number of samples used to calculate lighting for clouds. The following values are available:
  • Low — 1 sample, low quality
  • Medium — 3 samples, medium quality (by default)
  • High — 5 samples, high quality
  • Ultra — 6 samples, ultra quality
Notice
This parameter has a significant impact on performance. Therefore, it is recommended to use low settings, when possible.
Samples Count The number of samples used for clouds rendering. The following values are available:
  • Low — 1 sample, low quality
  • Medium — 3 samples, medium quality (by default)
  • High — 5 samples, high quality
  • Ultra — 6 samples, ultra quality
Lighting Trace Length The maximum length of a sun ray traced inside a cloud, in units.
Lighting Cone Radius Lighting cone sampling radius for clouds lighting.
Notice
Low values may result in unnatural behavior as the position of the sun changes.
Dynamic Coverage Area Visibility distance for coverage of FieldWeather objects, in units.
Notice

In UnigineEditor this area is marked with a bounding box. When the camera is outside this box, the FieldWeather coverage is not visible.

Increasing dynamic coverage area leads to reduction of quality of FieldWeather coverage texture and loss of details. This effect can be mitigated by increasing dynamic coverage resolution.

Dynamic Coverage Resolution The quality of dynamic coverage texture for FieldWeather objects. The following values are available:
  • 128 x 128
  • 256 x 256 (by default)
  • 512 x 512
  • 1024 x 1024
  • 2048 x 2048
Higher values make it possible to preserve texture details at high distances.
Notice
Increased resolution significantly affects performance.
Interleaved Rendering Interleaved rendering mode for clouds. The following values are available:
  • disabled (by default)
  • 2 x 2
  • 4 x 4
Notice
When clouds are viewed from the ground or from above (at significant distance) and the viewer's velocity is less than 200 units per second, enabling this parameter can provide a significant gain in performance.
Downsampling Rendering This parameter determines the clouds resolution based on a current screen resolution. The following values are available:
  • Full — full resolution
  • Half — half resolution (by default)
  • Quarter — quarter resolution
Notice
This parameter has a significant impact on performance.
Detail Distortion Texture type to be used for clouds distortion. The following types are available:
  • 2D Texture — more performance-friendly, but may cause an excessive vertical extrusion of clouds.
  • 3D Texture — ensures homogeneous detail distortion and better image quality, but at a higher performance cost.
Soft Intersection Soft intersection distance for clouds, in meters.
Ground Shadows Toggles rendering of clouds shadows on the ground on and off.
Shadow Shafts Toggles rendering of shadow shafts for clouds on and off.
Render After Transparent This parameter enables rendering of clouds after all transparent objects (except water).
Simplified Depth Test Toggles simplified depth test for clouds on and off.
Noise Step The amount of jitter in areas within clouds that is used to reduce banding effect due to an insufficient number of steps.
Noise Iterations The amount of jitter used to reduce banding effect due to insufficient number of steps.
Noise Lighting The amount of jitter for tracing steps of lighting calculation, which is used to reduce banding effect due to insufficient number of steps.
Noise Step Skip The amount of jitter in areas between clouds, which is used to reduce banding effect due to insufficient number of steps.
Rounded Toggles visual curving for clouds on and off. This option can be used to make clouds look more natural imitating planet's curvature.

Planet Radius Planet radius to be used for clouds curving, in units.
Last update: 2020-07-31
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