Due to the way samples count is based on distance, samples become visibly large (as circles) in the atmosphere. Visibility of the samples is a side-effect of the density of medium in the atmosphere being higher, and very concentrated, close to the ground, which is a typical ray marching issue. You can solve this in a couple of ways: Achieving cinematic quality of atmosphere rendering is done by disabling the Sky View and Aerial Perspective LUTs optimizations, which use a lower resolution to be performant. They can be disabled by setting r.SkyAtmosphere.FastSkyLUT and r.SkyAtmosphere.AerialPerspectiveLUT.FastApplyOnOpaque to 0. Atmosphere will become slower to render but produces fewer visual artefacts with high-frequency detail that appear in some areas, such as a planet's shadow or its scattering lobe. You'll also want to increase the tracing quality on the Sky Atmosphere component (see above). If using multiple Directional Lights, set the Atmosphere Sun Light Index for each; for instance, 0 for the Sun and 1 for the Moon.

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Increased particle density causes the sky to become occluded. It also causes the sky to appear hazy with the strong forward scattering lob around the incident light direction. This video uses assets and materials that are not part of the Sky Atsmosphere system, such as the star field and meshes that represent the planet surface.Decreased scattering causes light to scatter less through the atmosphere. This is 10x less dense than Earth's atmosphere. For outer space views, enable Per Pixel Atmosphere Transmittance to apply accurate planetary shadowing that also casts shadows on nearby celestial objects, such as a moon.

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When the sun is at its zenith, it should be set to 120000 lux (or cd:sr*m The Sky Atmosphere component is freely movable within Level using the selectable Transform Mode. Choose from the following options: Set up logic to adjust and tweak atmospheric properties when in outer space to have less particles near the ground, making them more uniform and height distributed. Planet Top at Component Transform places the top ground level of the atmosphere relative to the component's transform origin. Moving the transform of the Sky Atmosphere component, or one that it is a child of, moves the atmosphere within the level.Place a Directional Light in the scene, and from its Details panel, enable Atmosphere/Fog Sun Light. The Sky Atmosphere system is optimized for scenes that are on ground level. However, there is nothing preventing you from traveling from the ground to a high aerial view, or even outer space. While the transition through the atmosphere should be seamless—without a noticeable transition—from the look-up tables (LUTs) to per pixel tracing, you may sometimes experience a hitch or when this happens.