Clouds

Common#

Enable Clouds	The value indicating if rendering of clouds is enabled. enabled by default. Console access: render_clouds_enabled (API control)
Mode	The clouds rendering mode. Rendering clouds into the panorama cubemap texture once per frame automatically makes the clouds seen in simple default environment-based reflections making them look more natural for a reduced cost. However, rendering views from inside the clouds is possible in Volumetric mode only. One of the following values: Volumetric — render volumetric clouds (by default) Render To Panorama — render clouds to panorama (environment cubemap) Console access: render_clouds_mode (API control)
Panorama Resolution	The resolution of the panorama cubemap texture. Available for Render To Panorama clouds mode. One of the following values: 128x128 256x256 384x384 512x512 768x768 (by default) 1024x1024 1536x1536 2048x2048 4096x4096 Console access: render_clouds_panorama_resolution (API control)
Reuse Panorama Between Viewports	The value indicating if the panorama cubemap texture is reused between several viewports. Available for Render To Panorama clouds mode. disabled by default. Console access: render_clouds_panorama_reuse (API control)
Ground Shadows	The value indicating if rendering of shadows from the clouds on the ground is enabled. enabled by default. Console access: render_clouds_ground_shadows (API control)
Accurate Layers Sorting	The value indicating if correct sorting of intersecting cloud layers is enabled. Notice Enabling this feature may reduce raymarching quality as samples shall be distributed among all layers. disabled by default. Console access: render_clouds_accurate_layers_sorting (API control)
Cutout By Far Clipping	The value indicating if far-plane clipping is used for clouds visibility. Controlling clouds visibility by increasing the far-plane distance significantly affects performance in many aspects (dynamic Environment Probes, etc.). You can disable this option when necessary as an optimization. enabled by default. Console access: render_clouds_far_clipping (API control)
Transparent Order	The rendering order for clouds relative to transparent objects (except water). Render Before Transparent — render clouds before all transparent objects (except water). Render After Transparent — render clouds after all transparent objects (except water). Sort Transparent — enable rough sorting for transparent objects relative to clouds (below the lowest cloud layer base -> inside the clouds -> above the highest cloud layer top). Option #1 is selected by default (see above). Console access: render_clouds_transparent_order (API control)
Detail Distortion	The value indicating which texture type is used for clouds distortion at the moment. This parameter has a significant impact on performance: 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. Option #1 is selected by default (see above). Console access: render_clouds_distortion_texture (API control)
Soft Intersection	The soft intersection distance for clouds, in meters. Range of values: [0.0f, 100000.0f]. The default value is : 100.0f. Console access: render_clouds_soft_intersection (API control)

Quality#

Clouds quality rendering settings

Preset	The index of the clouds quality preset used at the moment. One of the following values: Low (by default) Medium High + Interleaved High Ultra + Interleaved Ultra Extreme + Interleaved Extreme Custom Console access: render_clouds_quality_preset (API control)

Notice

Presets override user-defined custom settings. When any preset other than Custom is active, modification of the parameters via API has no effect. The parameter value set via the last API call shall be used only when the Custom preset is active. When checking the current parameter value via API, you'll get the corresponding setting stored in the active preset (default or custom one).

Customizable Settings#

The following settings are available when the Custom preset is selected.

Clouds quality custom settings

Clouds Quality Settings

Sampling Quality	The sampling quality for clouds. This parameter sets the number of noise samples that affects the cloud shape processing quality. The higher the value, the less are visual artifacts. The following modes are available: Low — 1 sample, low quality (higher cloud density) Medium — 3 samples, medium quality 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. Option #2 is selected by default (see above). Console access: render_clouds_sampling_quality (API control)
Lighting Quality	The lighting quality for clouds. This parameter determines 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 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. Option #2 is selected by default (see above). Console access: render_clouds_lighting_quality (API control)
Samples Count	The number of samples used for clouds rendering. The higher the value, the less noise in clouds rendering. The following values are available: Low — 1 sample, low quality Medium — 3 samples, medium quality High — 5 samples, high quality Ultra — 6 samples, ultra quality Option #3 is selected by default (see above). Console access: render_clouds_samples_count (API control)
Step Accuracy	The accuracy of ray marching steps. This parameter enables you to improve the visual look of clouds when viewed from inside a cloud layer. It reduces the noise of lighting and clouds shape for long ray marching distances, adds some noise-based blur to a sharp border at the bottom sphere of the cloud layer (rounded) and removes popping effect when leaving a rounded cloud layer. Higher values provide more accurate form and less noise, while lower ones gain more performance. Range of values: [0.0f, 1.0f]. The default value is : 0.5f. Console access: render_clouds_step_accuracy (API control)
Downsampling Rendering	The downsampling rendering mode for clouds. This parameter determines clouds resolution based on current screen resolution. Notice This parameter has a significant impact on performance. One of the following values: Quarter - quarter resolution Half - half resolution (by default) Full - full resolution Console access: render_clouds_downsampling_rendering (API control)
Interleaved Rendering	The interleaved rendering mode for clouds. In cases when clouds are viewed from the ground, or from above (at significant distance) and viewer's velocities are less than 200 units per second, this parameter can be used to provide a significant gain in performance. One of the following values: Disabled (by default) 2×2 4×4 8×8 Console access: render_clouds_interleaved_rendering (API control)
Depth Based Reconstruction	The value indicating if clouds ray-marched depth is used for upsampling the downsampled clouds without obscuring the geometry and reprojection depending on the cloud depth. Recommended for flying through clouds. Notice Works only with the clouds downsampling rendering mode (see the ) set to half and/or the clouds interleaved rendering mode (see the ) set to 2x2. disabled by default. Console access: render_clouds_depth_based_reconstruction (API control)
Interleaved Rendering Temporal	The value indicating if temporal accumulation of noises for interleaved sampling for clouds is enabled. Notice Works only when the clouds interleaved rendering mode (see the ) is set to 2x2. enabled by default. Console access: render_clouds_interleaved_rendering_temporal (API control)
Depth Based Reconstruction Threshold	The depth threshold value for clouds depth-based reconstruction mode (see the ). This value defines the depth difference starting from which pixels are considered to be related to different surfaces. Range of values: [0.0f, inf]. The default value is : 100.0f. Console access: render_clouds_depth_based_reconstruction_threshold (API control)
Noise Step	The value of the noise step parameter for clouds. This parameter determines the amount of jitter in the areas within clouds, that is used to reduce banding effect due to insufficient number of steps. Range of values: [0.0f, 1.0f]. The default value is : 0.3f. Console access: render_clouds_noise_step (API control)
Noise Iterations	The value of the noise iterations parameter for clouds. This parameter determines the amount of jitter in the areas within clouds, that is used to reduce banding effect due to insufficient number of steps. Range of values: [0.0f, 1.0f]. The default value is : 0.1f. Console access: render_clouds_noise_iterations (API control)
Noise Lighting	The value of the noise lighting parameter for the clouds. This parameter determines the amount of jitter for tracing steps of lighting calculation, that is used to reduce banding effect due to insufficient number of steps. Range of values: [0.0f, 1.0f]. The default value is : 0.3f. Console access: render_clouds_noise_lighting (API control)
Noise Step Skip	The value of the noise step skip parameter for clouds. This parameter determines the amount of jitter in the areas between clouds, that is used to reduce banding effect due to insufficient number of steps. Range of values: [0.0f, 1.0f]. The default value is : 0.3f. Console access: render_clouds_noise_step_skip (API control)

Lighting#

Lighting Trace Length	The lighting trace length for clouds. This parameter determines the maximum length of a sun ray inside a cloud. Range of values: [1.0f, 2048.0f]. The default value is : 230.0f. Console access: render_clouds_lighting_tracelength (API control)
Lighting Cone Radius	The lighting cone sampling radius for clouds lighting. Notice Low values may result in unnatural behavior as the position of the sun changes. Range of values: [0.0f, 1.0f]. The default value is : 0.3f. Console access: render_clouds_lighting_cone_radius (API control)
Lighting Samples Distribution	The value that controls distribution of samples for clouds lighting. Can be used to keep small details for long shadows when the lighting trace length value (see the ) is high. Range of values: [0.001f, 5.0f]. The default value is : 1.0f. Console access: render_clouds_lighting_samples_distribution (API control)

Rounded#

Enable Rounded	The value indicating if cloud layers are to be curved to make them look more natural imitating planet's curvature. enabled by default. Console access: render_clouds_rounded (API control)
Planet Radius	The radius of the planet to be used for clouds curving. Visual curving can be used to make clouds look more natural imitating planet's curvature. Range of values: [100.0f, inf]. The default value is : 200000.0f. Console access: render_clouds_rounded_planet_radius (API control)

Dynamic Coverage#

Dynamic Coverage Resolution	The the value defining the size of the square dynamic coverage resolution texture for clouds, in pixels. This parameter determines the quality of dynamic coverage texture for FieldWeather objects. Higher values make it possible to preserve texture details at high distances. Notice Increased resolution significantly affects performance. Range of values: [16, 8192]. The default value is : 256. Console access: render_clouds_dynamic_coverage_resolution (API control) The following values are available: 128 x 128 256 x 256 512 x 512 1024 x 1024 2048 x 2048
Dynamic Coverage Area	The dynamic coverage area for clouds, in units. This parameter determines visibility distance for coverage of FieldWeather objects. Notice 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 using the corresponding command (see the ). Range of values: [10.0f, 400000.0f]. The default value is : 10000.0f. Console access: render_clouds_dynamic_coverage_area (API control)

Dynamic Coverage Resolution

The the value defining the size of the square dynamic coverage resolution texture for clouds, in pixels. This parameter determines the quality of dynamic coverage texture for FieldWeather objects. Higher values make it possible to preserve texture details at high distances.

Notice

Increased resolution significantly affects performance.

Range of values: [16, 8192]. The default value is : 256.
Console access: render_clouds_dynamic_coverage_resolution (API control)

The following values are available:

128 x 128
256 x 256
512 x 512
1024 x 1024
2048 x 2048

Dynamic Coverage Area

The dynamic coverage area for clouds, in units. This parameter determines visibility distance for coverage of FieldWeather objects.

NoticeIncreasing 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 using the corresponding command (see the ).

Range of values: [10.0f, 400000.0f]. The default value is : 10000.0f.
Console access: render_clouds_dynamic_coverage_area (API control)

Last update: 2024-10-30

Help improve this article

Was this article helpful?

Report a problem related to this article

(or select a word/phrase and press Ctrl+Enter)