Organic modeling from photos?

pilou

I would like to have drone for taking aerial photos

pilou

I have forgotten PhotoSculpt (just 2 images !

bjornkn

Kites (aka KAP) are nice if there's wind and you're not close to people/buildings/trees/power lines.
Balloons, blimps, RC helis etc are nice if there are no wind, people/buildings etc
Poles are nice if you want closeups from lower altitudes than possible with a kite, and works fine anywhere, regardless of wind, people/buildings etc.
Besides, it requires a lot less rigging/setup and is a lot cheaper
A sturdy telescopic 7m pole may cost you $100?

BTW, PhotoSculpt seems to have a very limited use for modeling, as it can only use 2 photos, and only makes a textured 3D relief.

pilou

@unknownuser said:

and only makes a textured 3D relief.

Yes but as it's a 3d file, just make the turn of your object
So maybe 12 photos and past the result

bjornkn

@unknownuser said:

@unknownuser said:

and only makes a textured 3D relief.

Yes but as it's a 3d file, just make the turn of your object
So maybe 12 photos and past the result

Let's see an example?

pilou

I never try
just tricky fun images (from Chaoscope)

But I believe that the autor (a French guy should make a new version with this option

bjornkn

Well, they look pretty flat to me

I believe it doesn't really work with 3D coordinates, but more like 2 1/2D?
According to the info it makes a mesh with 1pixel = 1 face, and then adds depth info to that pixel. WHich means that a 6Mpx image will make a 6Mpoly mesh (or even 12 million triangles?)
Making 6 of those around the object (what about from above and below?) and trying to use SU to weld those 6x6 million faces (36 millions!) together won't be a fun job
It looks like it could work fine for making normal and bump maps though

bjornkn

@unknownuser said:

No no, it's a real 3D file x,y,z, format export OBJ

Yes, but the x and z are probably in an evenly spaced grid, one per pixel, if there's one vertex (face) per pixel. Then you can't have more than one vertex per xz position (assuming y is the depth), and you will get no details at the top and bottom. That is just like a DEM, where you have a xy grid where each pixel/face will have an altitude z value, making it impossible to get overhangs etc, and with very little, and streaked, details on very steep walls/slopes.

pilou

No no, it's a real 3D file x,y,z, format export OBJ
and you can increase, decrease decimate numbers of polys
as you want inside the prog before the export!

pilou

You can obtain the details by some bump or displacement as you have
the new calculated texture !
Here I have decreased twice from the maximum