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Photogrammetry with captured roughness/reflection

PostPosted: Fri Aug 31, 2018 6:00 pm
by Hesekiel2517
Hey there,

i build myself a photogrammetry rig which let me capture a diffuse and a specularmap. I also tried to seperate a SSS Map from the diffuse texture.

The Models were made from 1356 Images focus stacked to 226 sharp images and then processed in Agisoft Photoscan with Ultra High settings. Over 10 hours of capturing and 5 hours of postproduction per Model. HeliconFocus, Agisoft Photoscan, Photoshop and Modo 12 and Octane Render for Modo were used.

Zucchini_Test_1.png

Zucchini_Test_2.png

https://sketchfab.com/models/6bb612d4521a49f2aac6297c46b1ebe1


Plum_Test_1.jpg

Plum_Test_2.jpg

Plum_Test_3.jpg


Let me know what you think and what could be improved.

Thanks in advance

Re: Photogrammetry with captured roughness/reflection

PostPosted: Sat Sep 01, 2018 7:12 pm
by Tugpsx
Wow those look real, even the hairs on the zucchini stands out. Thanks for sharing.

Re: Photogrammetry with captured roughness/reflection

PostPosted: Mon Sep 03, 2018 10:14 am
by Hesekiel2517
Thank you very much! Since the rig is now fully functional i will continue to scan objects and post them here. If you have suggestions what to scan please let me know.

Re: Photogrammetry with captured roughness/reflection

PostPosted: Mon Sep 03, 2018 11:46 am
by sigurdhoeyen
NIce work - do you plan on selling them?

Re: Photogrammetry with captured roughness/reflection

PostPosted: Mon Sep 03, 2018 12:47 pm
by bomperstudio
Looks great have you tried capture reality? Much quicker creating scans especially if you have a good GPU, we've found the quality to be better too with less fixing in zbrush.

Re: Photogrammetry with captured roughness/reflection

PostPosted: Mon Sep 03, 2018 1:26 pm
by Hesekiel2517
Thank you both! Yes, i am going to sell them, but i want to do some testing first to make sure they are flawless.

I didn't tried capture reality yet. In my opinion with shadow and reflection free high resolution images photoscan is good and fast enough plus it is much more affordable. But i will try the demo to see if it is really that better and worth the price :)

Re: Photogrammetry with captured roughness/reflection

PostPosted: Mon Sep 03, 2018 4:51 pm
by bomperstudio
Purchase it via steam, you get 3 months I think for a very low price!

Re: Photogrammetry with captured roughness/reflection

PostPosted: Tue Sep 04, 2018 12:38 am
by rmara
Ho do you generate the specular maps ?
Is it a specific setting when you take the photos or does photoscan generate them for you ?
Or do uou generate them in the end by selecting some specific color range and attribute them some different values ?

Re: Photogrammetry with captured roughness/reflection

PostPosted: Tue Sep 04, 2018 7:34 am
by Hesekiel2517
Photoscan can't generate those maps. You also can't extract them from the diffuse texture. You have to capture additional photos with special lighting.