ozRocker Posted January 28, 2017 Share Posted January 28, 2017 Most people here know that I have an 82 DSLR cammera scanning rig. I use this specifically for scanning in people at the shortest time possible (which is currently 1/300th of a second). However, such a complex rig is not required for scanning objects. You don't even need a DSLR camera or a handheld scanner. In this demo I used a simple iPhone 6+ and walked around a statue. We took 89 photos from different angles. My web designer had to stand on my shoulders for the top row of photos. The bust needed to have smooth shading but the base has sharp edges which I needed to preserve so I wanted flat shading for that. With babylon.js you can't pick and choose which edges to smooth. In order to pull this off I made the base and bust 2 separate meshes and turned off smooth shading on the base. It still doesn't look perfect, but it was much better than everything smoothed or everything flat. This is my first test scanning with an iPhone and I usually scan people so this is a rough demo. www.punkoffice.com/statue adam, aWeirdo, JohnK and 10 others 13 Quote Link to comment Share on other sites More sharing options...
PhasedEvolution Posted January 28, 2017 Share Posted January 28, 2017 Aweeesome! Quote Link to comment Share on other sites More sharing options...
ozRocker Posted January 29, 2017 Author Share Posted January 29, 2017 I read through this post and I learnt that I can use the edge-split modifier to combine flat and smooth shading, so I did that and now I just need one mesh. It doesn't make much different to the result but it helped me clean up the code a bit Quote Link to comment Share on other sites More sharing options...
Temechon Posted January 29, 2017 Share Posted January 29, 2017 It's really awesome ! What do you use to build the mesh from pictures ? Quote Link to comment Share on other sites More sharing options...
ozRocker Posted January 29, 2017 Author Share Posted January 29, 2017 3 hours ago, Temechon said: It's really awesome ! What do you use to build the mesh from pictures ? I used Agisoft Photoscan. The screenshot above is from that. However, Photoscan will give a jumbled mesh with thousands of polygons so I used a combination of Zbrush and Blender to retopologise. I really wish babylon.js could show the actual topology I was working with instead of just tris so I could demonstrate it right on the web-page. People always ask about topology and the best I can do is turn on wireframe mode and tell them to use their imagination to see the squares Temechon, jerome and Nabroski 3 Quote Link to comment Share on other sites More sharing options...
GameMonetize Posted January 30, 2017 Share Posted January 30, 2017 Impressive! Quote Link to comment Share on other sites More sharing options...
gryff Posted January 30, 2017 Share Posted January 30, 2017 @Temechon: There is a free piece of software called Instant Meshes that can be used to retopologize high poly triangulated meshes to low poly quad meshes. Requires input as an .obj or .ply file. It was presented at a SIGGRAPH conference in 2015. Oops - that is not the answer to the question you asked For the pictures to mesh - VisualSFM Here is a YouTube video on the whole process - 3D scanning for free! It also uses MeshLab for clean up - but that does not do any retopology - just cleanup and decimation. You can use Instant Meshes instead. cheers, gryff Temechon 1 Quote Link to comment Share on other sites More sharing options...
ozRocker Posted January 30, 2017 Author Share Posted January 30, 2017 I think VisualSFM is free, so that's definitely a good place to start. Instant Meshes is pretty neat but I don't use it because it makes all quads the same size. Its not possible to allocate more polys to one area so its not much better than a clever decimation. In my topo picture above you can see that the base has much bigger quads than the bust. For webGL I put in a good effort to use the least number of polys possible Quote Link to comment Share on other sites More sharing options...
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