[WONTFIX] Rendering artefact inside fog

[renato.semadeni]

Hi there

 

I observe an artefact in the fog while rolling the camera. It disappears after going back to a horizontal view of the camera. Is this a bug or do I have to control the camera differently?

 

Kind regards,

Renato

[ulf.schroeter]

Most probably a bug in the fragment shader of the fog material (I would guess some floating point precision/NaN problem). Should be added to the Unigine bug tracker.

[renato.semadeni]

Yes, if I reduce the size of the VolumeObjectBox the artefact disappears. And the artefact is showing the horizon of the scenery.

 

Thanks

[silent]

Hi Renato,

 

Successfully reproduced with ObjectVolumeBox (500000x5000000x600 units in size). Thank you for the test scene!

 

Also, I've added this issue to our internal bug tracker.

[silent]

Hi,

 

Just got response from the developers. I'm afraid this issue would not be fixed, since the object have really big size (approx. 5000 km for the longest part).

 

There are 3 possible solutions:

1. If you really need such large ObjectVolumeBox you can increase camera far and near clipping. However, it can drastically reduce the performance.
2. Split one large ObjectVolumeBox into smaller ones;
3. Attach ObjectVolumeBox to camera and enable it when it's needed (like rain in Valley demo).

Thanks!

[renato.semadeni]

Hi Silent

 

I already started with solution 3. Thanks a lot for the support.

 

Kind regards,

Renato