Sampling Cloud Shadows when rendering the Sky Atmosphere can incorrectly assume that the view is located at the planet's North Pole.
This causes distortion in the shadows when using a sphere-shaped Sky Atmosphere and Volumetric Clouds, and the view not at the North Pole.
1. Download the Licensee's test project and open (see addl info URL)
2. Open the level /Game/Planet
3. In the Details Panel, find the Static Mesh Actor "North Pole" and focus on it
4. Observe the shadows that the clouds cast on the Sky Atmosphere (not the mesh) when the camera is inside the atmosphere but above the clouds. They are below the clouds, as you would expect.
5. In the Details Panel, select the Static mesh Actor "Equator", and negate its Y-position.
6. Focus on the "Equator" actor to bring the camera to the equator at the light side of the planet.
7. Bring the camera outside the atmosphere
8. While observing the cloud shadows, slowly bring the camera closer to the "Equator" actor
9. Observe that the moment the camera is within the atmosphere, but above the clouds, the cloud shadows start to swing around violently, and no longer lie nicely under the clouds.
10. Apply the Licensee's changes to the function "IntegrateSingleScatteredLuminance(...)" in SkyAtmosphere.usf
11. Repeat steps 6 - 9, and observe that the Cloud Shadows on the Sky Atmosphere no longer swing around wildly.
I am not able to find world outliner how to enable it?
How to achieve HLSL Multiple Render Target in Material blueprints?
What method is used to fill polygonal regions when drawing spline mesh at run time?
How does UMG set overlapping layouts?
How does TextureRenderTarget2D get TArray<uint8> type data?
How can PaintContext be used as function parameter in OnPaint?
Delay nodes occasionally don't fire the "Completed" output in a nativized build
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-232061 in the post.
1 |
Component | UE - Graphics Features |
---|---|
Affects Versions | 5.5 |
Target Fix | 5.7 |
Created | Dec 3, 2024 |
---|---|
Updated | Dec 4, 2024 |