{"id":131012390254,"date":"2015-10-12T03:42:52","date_gmt":"2015-10-12T01:42:52","guid":{"rendered":"http:\/\/blog.sketchfab.com\/post\/131012390254"},"modified":"2021-06-28T19:16:06","modified_gmt":"2021-06-28T17:16:06","slug":"how-i-create-my-3d-scans-with-autodesk-recap360","status":"publish","type":"post","link":"https:\/\/sketchfab.com\/blogs\/community\/how-i-create-my-3d-scans-with-autodesk-recap360\/","title":{"rendered":"How I create my 3D scans with Autodesk Recap360"},"content":{"rendered":"<p><em>EDIT:\u00a0 Autodesk have discontinued Recap360 since this article was written, but you can find out more about making 3D models from digital images in <a href=\"https:\/\/blog.sketchfab.com\/?s=photogrammetry\">these other great posts on the blog<\/a>.<\/em><\/p>\n<p>&nbsp;<\/p>\n<div class=\"sketchfab-embed-wrapper\">    <iframe title=\"Box of Dinos- #3DST40\" class=\"\" width=\"690\" height=\"388\" src=\"https:\/\/sketchfab.com\/models\/c11be7c89e784925a9766200305a96ee\/embed\" frameborder=\"0\" allow=\"autoplay; fullscreen; xr-spatial-tracking\" allowfullscreen=\"\" mozallowfullscreen=\"true\" webkitallowfullscreen=\"true\" xr-spatial-tracking=\"true\" execution-while-out-of-viewport=\"true\" execution-while-not-rendered=\"true\" web-share=\"true\"><\/iframe><\/div>\n<h2><strong>Intro<\/strong><\/h2>\n<p>I\u2019ve been creating a fair number of 3D scans lately using Autodesk\u2019s free Recap360 service and many people have asked me about my workflow. It\u2019s really not a difficult process and with this tutorial, you will be able to:<\/p>\n<ul>\n<li>Create a 3D Scan using a digital camera and Autodesk Recap360.<\/li>\n<li>Crop the model in Blender.<\/li>\n<li>Publish the model to Sketchfab and optimize the presentation.<\/li>\n<\/ul>\n<p><!-- more --><\/p>\n<p>Don\u2019t be discouraged by the length of this tutorial! After doing this a few times, most of the things here will become second nature. I typically need about 30 minutes to capture, upload, clean and publish a model. Not bad for free tools :)<\/p>\n<p>The beauty of this approach is that you don\u2019t have to invest anything! If you have a digital camera or even a smartphone then you\u2019re all set to get started.<\/p>\n<p>And before you ask: yes, there are other apps available to achieve this. To keep things simple I\u2019ll just focus on Recap360, but the principles in this tutorial will apply to those as well.<\/p>\n<h2><strong>Choosing a subject<\/strong><\/h2>\n<p>So how does 3D \u2018scanning\u2019 without a scanner work? This software works with a technology called &#8216;photogrammetry\u2019. An algorithm goes through your photos, calculates the camera positions and perspective for each one, and from there regenerates the geometry of a three-dimensional model.<\/p>\n<p>The software needs to &#8216;understand\u2019 how the photos relate to each other. For this, you need to provide enough overlap between pictures. About 50% overlap is more than enough in most cases.<\/p>\n<p>It also needs to &#8216;see\u2019 enough detail in your model. Models that have only one color (like a clean white table) or models with very dark shadows will confuse the software and you may see weird shapes as a result.<\/p>\n<p>Reflective or transparent surfaces are also very hard to process &#8211; stay away from those.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/61c8faa953d8edd9e699471da013c24e2d8e54dc.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/61c8faa953d8edd9e699471da013c24e2d8e54dc.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>For this tutorial, I\u2019ll use my &#8216;Box of Dinos\u2019 as an illustration. I found it in my sons\u2019 room and I liked the chaotic shapes and colors. I wasn\u2019t sure that 50 pictures would cut it (the limit of the free version of Recap360, read on), but I was pleasantly surprised with the result!<\/p>\n<h2><strong>Taking pictures<\/strong><\/h2>\n<p>I\u2019ve learned that I get the best results when shooting pictures outside with overcast weather &#8211; this way you\u2019ll have nice and even lighting without harsh shadows. Avoid shooting in direct sunlight as this usually makes it hard to capture darker parts of your model. Also, you\u2019re much more likely to cast your own shadow on the model when you\u2019re working in bright sunlight.<\/p>\n<p>The free version of Recap360 allows you to use up to 50 pictures, so make the most of it! (You can pay &#8216;credits\u2019 to allow for more pictures and to generate a higher-resolution mesh).<\/p>\n<p>For the first pass, walk around your model in a circle, each time moving about 45 degrees. Shoot the objects from three different heights while keeping your camera aimed roughly at the center of your model. You should now have about 24 pictures, so we have 26 left.<\/p>\n<p>Here\u2019s a schematic of my camera path:<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/eaf77083e116fe7ae178271625ae61ebfae15f1a.png\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/eaf77083e116fe7ae178271625ae61ebfae15f1a.png\" alt=\"image\" \/><\/noscript><\/p>\n<p>For the second pass, find areas that might have been covered or hard to reach. Also, I tend to zoom in on parts that I think require extra resolution.<\/p>\n<p>Take more than 50 photos &#8211; we\u2019ll be reviewing them after this.<\/p>\n<p>For an example of parts that are hard to reach, check out my embed above and try to navigate between the dinos. I actually carefully stuck my camera between some models to snap pictures from below, and I took some pictures through the holes on the sides of the box.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/97a94b843b78cdb50faefdbef337bf44e4dda66d.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/97a94b843b78cdb50faefdbef337bf44e4dda66d.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>For more tips on selecting a good camera, model, and lighting conditions, see our tutorial \u2019<a href=\"https:\/\/sketchfab.com\/blogs\/community\/how-to-set-up-a-successful-photogrammetry-project\/\">How to set up a successful photogrammetry project<\/a>\u2019.<\/p>\n<h2><strong>Review your photos<\/strong><\/h2>\n<p>Now if all went well you took more than 50 photos. Before uploading them, review them carefully and pay attention to the following:<\/p>\n<ul>\n<li>Is this shot out of focus?<\/li>\n<li>Is this shot too similar to another one?<\/li>\n<li>Is the lighting in this picture very different from the others?<\/li>\n<\/ul>\n<p>Keep discarding photos until you have 50 left.<\/p>\n<h2><strong>Processing with Recap360<\/strong><\/h2>\n<p>Now create a free account on Autodesk Recap360, and click on the &#8216;Photo to 3D\u2019 option on the homepage. Now simply drag your pictures into the browser to start the upload process. This may take a while, especially if your camera is 10 megapixels or more.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/310f5828aa6fe971deac87b4bd973875df03478f.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/310f5828aa6fe971deac87b4bd973875df03478f.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>Click &#8216;Next\u2019 and give your project a name. As you can see the free version offers limited resolution, but it\u2019s often good enough for my purposes.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/43befc746a20d71486684110bffb08fca21e785f.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/43befc746a20d71486684110bffb08fca21e785f.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>That\u2019s all! Now submit your project and prepare to wait &#8211; as the processing is all done in the cloud there really is no way to predict how long this is going to take. Best case: less than an hour. Worst case for me so far: about half a day. Recap will send you an email when your model has finished processing, and you can now download the result as an OBJ file with texture maps.<\/p>\n<p><strong>PRO Tip<\/strong>: you may want to clean out your Autodesk A360 Drive every now and then to remove old photographs and scans &#8211; <a href=\"http:\/\/forum.sketchfab.com\/t\/cleaning-up-your-free-autodesk-recap360-account\/1274\">here\u2019s how<\/a>.<\/p>\n<h2><strong>Model cleanup<\/strong><\/h2>\n<p>I like to process my models with <a href=\"http:\/\/www.blender.org\/download\/\" target=\"_blank\" rel=\"nofollow\">Blender<\/a>. After unzipping the downloaded model and importing the OBJ, this is what I see:<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/b4e886c4122abbce3c33644d7571852d2e0c03ce.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/b4e886c4122abbce3c33644d7571852d2e0c03ce.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>Of course, Recap360 does not know which part of the model I\u2019d be interested in, so it gives me everything it can reconstruct. It\u2019s up to me to crop the model and leave only the interesting bits.<\/p>\n<p>First, though, I\u2019ll rotate the model so that it\u2019s placed flat on the floor.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/bfab18f351e67e0a2b841c1fd39453d761b9af54.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/bfab18f351e67e0a2b841c1fd39453d761b9af54.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>Then, I\u2019ve found that the quickest way to crop a model is by using the &#8216;bisect\u2019 tool. Go to top view, enter edit mode for your model with TAB, hit SPACE, and enter &#8216;bis\u2019. The bisect mode works by drawing a cutting plane on your model, so just drag a line from top to bottom:<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/8736c8d9bdc76da87d0ef099afee8c2d5a5b2c7a.png\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/8736c8d9bdc76da87d0ef099afee8c2d5a5b2c7a.png\" alt=\"image\" \/><\/noscript><\/p>\n<p>By default, Bisect will cut your model in two, but it can remove the unwanted part by selecting &#8216;Clear Inner\u2019 or &#8216;Clear Outer\u2019 in the tool options. Whether to use &#8216;Inner\u2019 or &#8216;Outer\u2019 depends on the orientation of your cutting line, so just experiment a little.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/be734f40225169e3b46e2e930aa8c06bd3dfd419.png\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/be734f40225169e3b46e2e930aa8c06bd3dfd419.png\" alt=\"image\" \/><\/noscript><\/p>\n<p>Now just repeat a few times until you\u2019re satisfied with the result.<\/p>\n<h2><strong>Upload to Sketchfab<\/strong><\/h2>\n<p>Blender comes bundled with <a href=\"https:\/\/sketchfab.com\/exporters\/blender\">a really nice exporter<\/a>. Just enable it, enter your API key, and hit &#8216;Upload\u2019 to send the model and its texture maps to Sketchfab.<\/p>\n<p>Alternatively, you can save your cleaned model as an OBJ file and zip it together with the texture maps. Drag the ZIP file onto the Sketchfab site to start the upload process.<\/p>\n<h2><strong>Sketchfab presentation<\/strong><\/h2>\n<p>Cool, so now you have your model on Sketchfab! You\u2019re not done yet though :) Here are a few quick and final steps you can take to supercharge the presentation:<\/p>\n<p>First, click the orange &#8216;Settings\u2019 button on your model page and select &#8216;3D Settings\u2019. Switch from the default &#8216;Lit\u2019 lighting model to &#8216;Shadeless\u2019. Your scanned model already contains light information, after all!<\/p>\n<p>Second, enter the Post Processing Filters and add a tiny dash of Sharpness (about 20 usually does it for me). This makes your textures much crisper and really brings out the details.<\/p>\n<p><img decoding=\"async\" class=\"lazyload\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/2f72551e63c1039bddefd68f638f4ca3640b23b3.jpg\" alt=\"image\" \/><noscript><img decoding=\"async\" class=\"lazyload\" src=\"http:\/\/blog.sketchfab.com\/wp-content\/uploads\/2015\/10\/2f72551e63c1039bddefd68f638f4ca3640b23b3.jpg\" alt=\"image\" \/><\/noscript><\/p>\n<p>That\u2019s quite a difference, isn\u2019t it? There\u2019s much more you can achieve with the 3D settings &#8211; <a href=\"https:\/\/sketchfab.com\/blogs\/community\/styling-a-3d-scan-with-sketchfabs-3d-settings\/\">watch this excellent video tutorial by Thomas Flynn for some pro tips<\/a>.<\/p>\n<p>Finally, make sure people can find your cool model. Return to the orange &#8216;Settings\u2019 button and select &#8216;Properties\u2019. Next:<\/p>\n<ul>\n<li>Select the right model categories and tags to make the model show up in the right galleries.<\/li>\n<li>Add a nice description to tell your viewers about this project (you can <a href=\"https:\/\/help.sketchfab.com\/hc\/en-us\/articles\/205611655-Markdown\">use Markdown<\/a> to format it).<\/li>\n<li>If you\u2019re feeling generous, allow people to download your model!<\/li>\n<\/ul>\n<p><strong>That\u2019s all!<\/strong><\/p>\n<p>Please let me know if this tutorial helped you and how I can improve it, and share your results below!<\/p>\n<p>If you enjoyed this, then <a href=\"https:\/\/sketchfab.com\/bartv\/models?sort_by=-likeCount\">check out my other scans here at Sketchfab<\/a>!<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>EDIT:\u00a0 Autodesk have discontinued Recap360 since this article was written, but you can find out more about making 3D models from digital images in these<\/p>\n","protected":false},"author":2,"featured_media":142059975389,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[582],"tags":[50,136,1058,49,984,137,991],"class_list":["post-131012390254","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorial","tag-3d-scanning","tag-autodesk","tag-beginner-photogrammetry","tag-photogrammetry","tag-tutorial-photogrammetry","tag-recap360","tag-tutorial-3d-scanning"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/sketchfab.com\/blogs\/community\/wp-content\/uploads\/2015\/10\/box_of_dinos___3dst40-4.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/posts\/131012390254","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/comments?post=131012390254"}],"version-history":[{"count":9,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/posts\/131012390254\/revisions"}],"predecessor-version":[{"id":142060000285,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/posts\/131012390254\/revisions\/142060000285"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/media\/142059975389"}],"wp:attachment":[{"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/media?parent=131012390254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/categories?post=131012390254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sketchfab.com\/blogs\/community\/wp-json\/wp\/v2\/tags?post=131012390254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}