Question Shadow flicker on terrain with camera movement

When I move the camera for the first second i get a flicker of the shadows on the unity terrain grass. When i am in constant motion it is not noticeable however when you adjust the camera back and forth or move it once and stop it is very noticeable in dim lighting (night). When lighting is very intense it seems to be gone.

I have attached a few video examples of what I am experiencing

I am using unity 2020.1.17f1, standard unity, linear and deferred

I have played around with detail resolution per patch on the terrain
I have changed the camera near clip plane
I have turned off all camera components
I have played with the quality settings and shadow settings

 

anyone have any thoughts?

 

here's another example https://youtu.be/Rm9TnH4o_Mk

 

Thanks for providing vids of the prob, and i see what your talking about.

"I have played around with detail resolution per patch on the terrain", that wont help in this senario, its not about how much coverage there is, per patch.
"I have changed the camera near clip plane", dont think this is a, draw distance prob.
"I have turned off all camera components", nice and correct way to "narrow things down", shut things off, till you see a change.
"I have played with the quality settings and shadow settings", very good.

Hopefully something i write may spark something, to solve the prob. My gut feeling is this is a lighting issue, not camera, shadows, or view distance, etc. All foliage is effected, but not once did you mention Directional Light, or lighting. And lighting effects all terrain objects. Another thought is textures and materials.

 

I've turned all lighting off, direct and ambient. Still can't figure out what is causing it.

 

anyone with any other thoughts?

 

Check you camera settings, if you have the NearPlane set to really low then the FarPlane needs to be lowered as well because z-fighting issues can occurs and this can show up as flickery shadows.

Does this effect you game camera as well?
Does it happen in build?
Does this happen in forward?
Are terrain shadows turned on?
Have you messed with the shadow settings?
Third party shaders or post effect?
A lot of variables to consider, a little more info might help.

 

I would suggest look into reflection probes and also settings for motion vectors

 

Does this effect you game camera as well? - yes
Does it happen in build? - yes
Does this happen in forward? yes
Are terrain shadows turned on? - yes
Have you messed with the shadow settings? - no, i even uploaded into a fresh project still same problem
Third party shaders or post effect? - turned off all effects on the camera and it still happens
A lot of variables to consider, a little more info might help.

I would suggest look into reflection probes - no difference still occurs

 

I remember this post, alot of good suggestions, any resolve yet?

 

I have not figured out what to do yet.

 

Hi guys I made another video. I am still struggling to figure out this issue. I would really appreciate anyone's input

 

I was thinking the same thing.

I noticed that some of the flickering shadows, have sperical shapes, like an inner sphere shaped shadow, surrounded by an an outer sphere shaped shadow.

 

I have this as well. It seems like its related to shadow cascades, this explains the circular pattern, but still no idea. Did you end up solving this?