Improve the Quality of Your Models Using Cross Polarization | Tutorial

[@remmahsroht]

I was thinking about something to do with polarisation and photogrammetry for for a while. Thank you for writing that, cant wait to try it out.

[@android4cg]

Would be really so cool if it would be possible to import 3d scanned object (e.g. laser scanner), align it to worse quality object from photogrammetry and apply high quality texture to 3d scanned object file. This would be really great feature as 3d laser scanner become now much more affordable.

[@CapturingReality]

Hi, there is a workaround for that: kzbin.info/www/bejne/bGHafaCrpZmsZpI

[@android4cg]

@CapturingReality i know the workaround but it is time consuming and quite complicated.

[@FurkanKöroğlu-c1s]

Although the cross polarized filter prevents reflections on the surface of the product and allows the mesh to be scanned more losslessly, there is a problem in terms of color and brightness. the product should shine under light in unreal engine due to its surface, but it cannot do this correctly. I think the roughness map had to be opened in the substance painter before throwing the models into unreal engine.

[@wallacewainhouse8714]

Excellent points, I will try to address both inverse square light falloff and roughness in future videos. These models were just straight out of RC and just given a constant roughness value in UE (same for each model) You can see the mobile model is a little darker as the focal length was a little shorter.

[@xinyuanHu-k3u]

@@wallacewainhouse8714 Can you give me some tips on how to correct the brightness difference due to distance in the process of cross polarization?

[@danielkotzer636]

does a polarized filter really save us the need to use scan spray?

[@xinyuanHu-k3u]

Can you give me some tips on how to correct the brightness difference due to distance in the process of cross polarization?

[@Dok1101]

It probably should be fixed automatically by made captures from different positions around the object

[@emagotis]

Thank you for suggesting the use of a polarization filter on my mobile phone-I hadn't considered that before. I also didn't think about using a black cloth, as I've been focusing on capturing everything within a white box. Now I understand the benefits of using a flash with a polarization filter. In your experience, which setup provides better results: a white box with a normal camera and polarization filter, or a black cloth with flash and polarization filter?

[@wallacewainhouse8714]

I have not tried the white box method. I think the black cloth method has become standard for a reason, but it would be very interesting to see a comparison to be sure. My guess is that it would depend on the object being scanned.

[@MrGTAmodsgerman]

A white object on a white background might not work compared to a black object on white background. It confuses the software. And black normally results being identified as hole, not surface. So i think black should be only the background

[@ashizawa_drone]

Please tell me the reason why the normal retail button cannot be pressed in reality capture.

[@hutpfff1366]

maybe try to reinstall, and check if you have aligned prior