Lumen Diffuse Indirect Data always change when Camera View Changed

Development Rendering
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1

When Disable the Indirect Lighting Intensity,the Indiret lighting still affect the channel 1 Object,And keep changing when you Move your Camera.This is Strange when you Moving your camera because some Lighting Showing like Ghost

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2

Steps to Reproduce
1.Create a new project,Using Lumen And Hardware Raytracing,create a Level using the new Level -> Basic;

2.Open Outliner,Disable all components under Lighting Folder except the Directional Light;

3.Open Directional Light Detail Panel,Change the Indirect Lighting Intensity to 0;

4.Import a StaticMesh or SkeletalMesh whatever you like,Drag it to the Floor,Open Detail Panel and set the LightingChannel only to channel one,Make sure it won`t be affected by Directional Light in channel 0;

5.Drag your camera close to the connection between the Floor and Mesh you drag in the Level,you will see the Indirect Light is changing when your camera Moving closing to the Mesh,When you change the angle,the Indirect Lighting is Changing!!

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3

Hi there,

I am trying to reproduce your issue, but from what I can tell, everything is working as intended (see screenshot). Can you please send me a video or screenshot of the issue you are seeing, so I know what to look for?

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4

Hi, I have tried reproducing this now with a “complex” mesh, but I have not gotten the same results you described. Can you please send me a repro project that includes a mesh with inconsistent indirect lighting applied?

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5

Oh,you need a complex Mesh like Fab Megascan geometry,and you need to drag it to the floor.The Up Image show the Indirect light bounced from the floor,you need to change the View Angle if the camera,Your will see the Indirect Light is changing as well!This is wrong because Indirect light should be stable then the Directional Lighting is not Changing!

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