Moire and Aliasing Issue with Pattern on Animation

[lunarstudio]

2018-11-02_8-15-02.jpg (18.7 KiB) Viewed 2699 times

Hi. I rendered out an animation sequence but I have a brick pattern that from far away shows a moire/pattern that results in flickering and wavy lines.
Does anyone have any suggestions on how to prevent/fix this?

Thank you!

[HHbomb]

create a well sized map for this sequence , if it is far away make it smaller, make a texture map for the entire wall, so no repetition.
Lower or remove bump or displacement, increase filter size if needed .

[paride4331]

Hi lunarstudio,
are you sure scale unit is correct (Octane works in meters) and Ray epsilon in Kernel type panel is correct?
Rayepsilon is the distance between the geometry and the light ray when calculating ray intersections for lighting and shadowing. Larger values push rays away from the geometry surface. Lower values are more accurate, but can cause artifacts on large or distant objects. Ray Epsilon is similar to raytracing bias in other rendering engines. Adjust Ray Epsilon to reduce artifacts in large scale scenes.
Regards
Paride

[lunarstudio]

create a well sized map for this sequence , if it is far away make it smaller, make a texture map for the entire wall, so no repetition.

Unfortunately this is not possible as it is a fly-around then I zoom in through the doors on a closeup. This would require a MASSIVE non-repeating brick map.

Lower or remove bump or displacement

This is a good suggestion that I've considered. Unfortunately, I don't remember right now if the map had either one applied.

are you sure scale unit is correct (Octane works in meters) and Ray epsilon in Kernel type panel is correct?

Unit is in Imperial/US as unfortunately all the architects here work with those units and it's difficult to convert over.

Adjust Ray Epsilon to reduce artifacts in large scale scenes.

Would you recommend reducing the Rayepsilon values? I ask in advance because it would require a large amount of time processing and experimenting.

[paride4331]

Hi lunarstudio,

Unit is in Imperial/US as unfortunately all the architects here work with those units and it's difficult to convert over.

ok but don't forget Octane think in meters (e.g. displacement 0,1 > 10cm)
Ray epsilon, try 0,001 or 0,01
Regards
Paride