With the enabled ray-traced shadows, shadows disappear at a distance. I would like to know if it is possible to force the shadows to stay rendered. Ideally, on an epic preset only.
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Steps to Reproduce
Enable Lumen
Create an empty Open World Level.
Place a cube
In the Directional Light Settings, set Cast Ray Traced Shadows to Enabled
Fly backwards, shadows will disappear
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Hello,
Thank you for reaching out.
I’ve been assigned this issue, and we will be looking into this ray tracing question for you.
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If it helps, there is a r.RayTracing.Culling 1 CVar that helps with shadow draw distance, but performance is much worse.
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Hello,
Objects in the ray-tracing scene can be culled by distance and/or by angle (angle between sides based on camera FOV).
You can try adjusting the CVars “r.RayTracing.Culling.*”. In particular, “r.RayTracing.Culling.Radius” controls the distance at which objects will be culled from the Ray Tracing Scene. Please see the individual CVar’s help text for more information.
The overall culling mode is controlled by the CVar “r.RayTracing.Culling” you mentioned. These are the culling mode options:
0: Culling disabled
1: Culling by distance and solid angle enabled. Only cull objects behind camera.
2: Culling by distance and solid angle enabled. Cull objects in front and behind camera.
3: Culling by distance OR solid angle enabled. Cull objects in front and behind camera.
Please let us know if this helps.
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Hi,
I will stick to increasing the Radius since it seems to affect the performance less.
Thank you so much for your help.
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Hello,
Thank you for your reply.
Can we close your case? You can always re-open it if you have additional questions about the same topic.
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Hi,
Yes, please.
Thank you for the help!
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