Photogrammetry step 2 – a 3D model
For this tutorial I used Agisoft Metashape standard, Canon EOS 6D camera with Canon EF 24-70mm F/4L IS USM objective. The subject is the same runic stone as in Photogrammetry step 1 where I demonstrated how to make a flat surface.
If you want to do this try to find a subject that is evenly lit, that does not have any hidden areas that you can not photograph.
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/Camerapositions.jpg)
For the 3D model I photographed 286 pictures al around the subject. The blue squares show each camera position, note that I took some pictures straight down on the top.
The easiest way to make a 3D model is to use the stages in the Workflow tab as shown in the video in step 1. As can be seen in the picture below a problem is that this might result in a lot of “debris” in the model. The picture shows the dense cloud.
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/debries.jpg)
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/Buildmesch.jpg)
Instead of making a dense cloud there is a “new” function that uses depth maps. After aligning the photos click on Build Mesh
Chose Source data: Depth maps
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/Depth-maps.jpg)
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/model.jpg)
After a long time – might be hours of computing on an ordinary PC – the resulting mesh looks like this.
The final step in this tutorial is to use the Build texture function. After that the model looks like this.
![](https://usercontent.one/wp/www.hellberg.photo/wp-content/uploads/2019/10/render.jpg)
The video above shows the result of this tutorial. The next tutorial will be about masking. Finaly we will end up with a model like the one below.