Render error

Started by sjefen, March 12, 2019, 08:07:06 pm

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sjefen

Hi,


I got these strange errors in my renders for this scene.
Terragen does not report anything. Anyone else had this issue?


- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

digitalguru

are you path tracing? I got something similar but mine were black squares.

sjefen

Quote from: digitalguru on March 12, 2019, 08:15:47 pm
are you path tracing? I got something similar but mine were black squares.


Yes. I am.
Got the squares in another scene.


- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

Oshyan

Gorgeous looking render, that is almost certainly path traced. :D These artifacts look similar to what you get with "negative lobes" (negative values) on certain antialiasing filters, especially when AA bloom is disabled. But we can't know for sure without seeing the scene, at least the render settings. Anything notably different from your usual in the render settings?

- Oshyan

sjefen

March 12, 2019, 08:53:33 pm #4 Last Edit: March 12, 2019, 09:15:57 pm by sjefen
Nothing different from what I usually do.
It worked fine on all the other test renders. I just did a bigger crop and when I got back to check it, this is how it looked like.

I can send the tgd. if you need it?


- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

Oshyan

Yes, that would be great. support AT planetside.co.uk
Ideally it would include the terrain, at the least, if not the objects. Since that's where the errors seem to be occurring (along terrain edge, to some degree).

- Oshyan

digitalguru

QuoteThese artifacts look similar to what you get with "negative lobes"


That's interesting, I think the Mitchell filter might have negative lobes, don't think the box filter does, not sure about the others.

I did try a quick path trace render of the scene I'm working on and my black squares ( I guess they are NaNs) disappeared when I turned off Anti-aliasing bloom.

Oshyan

Yes, they are NaNs. Interesting they went away when you disabled bloom... Still would be good to see a scene.

- Oshyan

sjefen

Quote from: digitalguru on March 12, 2019, 10:13:15 pm
QuoteThese artifacts look similar to what you get with "negative lobes"


That's interesting, I think the Mitchell filter might have negative lobes, don't think the box filter does, not sure about the others.

I did try a quick path trace render of the scene I'm working on and my black squares ( I guess they are NaNs) disappeared when I turned off Anti-aliasing bloom.



I tried this myself and it didn't work for me  :'(

Anyway.... I've sent the gathered project to support.



- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

sjefen

"Ray trace everything" worked, but I'm not sure if PT does anything when RTE is on  ???


- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

cyphyr

I have noticed similar odd effects when there is a default node with a specular wrong specular settings.
I can't remember the "wrong" settings at the moment but do take a look and see if anything looks out of place.
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Oshyan

Thanks, we've received it and will check it out.

- Oshyan

sjefen

Quote from: Oshyan on March 13, 2019, 03:15:19 pm
Thanks, we've received it and will check it out.

- Oshyan


Great, but what actually happens when I turn on Ray trace everything when I also are using PT?


- Terje
ArtStation: https://www.artstation.com/royalt

AMD Ryzen Threadripper 1950X
32,0 GB RAM
GeForce GTX 1060 6GB

Oshyan

I believe PT should work when Ray Trace Everything is enabled, yes. The difference should be fairly obvious in vegetation in shadows to judge for yourself though.

- Oshyan