{"id":3368,"date":"2025-01-15T10:22:43","date_gmt":"2025-01-15T15:22:43","guid":{"rendered":"https:\/\/wordpress.cs.vt.edu\/3digroup\/?p=3368"},"modified":"2026-02-04T09:45:04","modified_gmt":"2026-02-04T14:45:04","slug":"planet-purifiers-a-collaborative-immersive-experience-proposing-new-modifications-to-homer-and-fishing-reel-interaction-techniques","status":"publish","type":"post","link":"https:\/\/wordpress.cs.vt.edu\/3digroup\/2025\/01\/15\/planet-purifiers-a-collaborative-immersive-experience-proposing-new-modifications-to-homer-and-fishing-reel-interaction-techniques\/","title":{"rendered":"Planet Purifiers: A Collaborative Immersive Experience Proposing New Modifications to HOMER and Fishing Reel Interaction Techniques"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This project presents our solution to the 2025 3DUI Contest challenge!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We developed a collaborative, immersive experience that raises awareness about trash pollution in natural landscapes. In our experience, one user collects harmful pollutants while the other user provides medication to impacted wildlife using enhancements to traditional interaction techniques: HOMER and Fishing Reel. We enhanced HOMER to use a cone volume to reduce the precise aiming required by a selection raycast for more efficient pollutant collection, coined as FLOW-MATCH. To feed wildlife far away from the user, we created RAWR-XD, an asymmetric bi-manual technique to more conveniently adjust the Fishing Reel reeling speed using the user\u2019s non-selecting wrist rotation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"404\" src=\"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/Teaser-1024x404.png\" alt=\"\" class=\"wp-image-3370\" srcset=\"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/Teaser-1024x404.png 1024w, https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/Teaser-300x118.png 300w, https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/Teaser-768x303.png 768w, https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/Teaser.png 1256w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">3D interaction techniques proposed in the paper: (A1-A3) FLOW-MATCH, an enhancement to the HOMER technique using a cone volume for initial object selection to improve selection efficiency; (B1-B3) RAWR-XD, an enhancement to the Fishing Reel technique allowing variable translation speed based on the non-selecting wrist tilt for a selected object along a ray-cast.<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Planet Purifiers: A Collaborative Immersive Experience\" width=\"1778\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/41pKvF6iqOU?modestbranding=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><div class=\"teachpress_pub_list\"><form name=\"tppublistform\" method=\"get\"><a name=\"tppubs\" id=\"tppubs\"><\/a><\/form><div class=\"teachpress_publication_list\"><h3 class=\"tp_h3\" id=\"tp_h3_inproceedings\">Proceedings Articles<\/h3><div class=\"tp_publication tp_publication_inproceedings\"><div class=\"tp_pub_info\"><p class=\"tp_pub_author\">Alexander Giovannelli; Fionn Murphy; Trey Davis; Chaerin Lee; Rehema Abulikemu; Matthew Gallagher; Sahil Sharma; Lee Lisle; Doug A. Bowman<\/p><p class=\"tp_pub_title\"><a class=\"tp_title_link\" onclick=\"teachpress_pub_showhide('218','tp_links')\" style=\"cursor:pointer;\">Planet Purifiers: A Collaborative Immersive Experience Proposing New Modifications to HOMER and Fishing Reel Interaction Techniques<\/a> <span class=\"tp_pub_type tp_  inproceedings\">Proceedings Article<\/span> <\/p><p class=\"tp_pub_additional\"><span class=\"tp_pub_additional_in\">In: <\/span><span class=\"tp_pub_additional_booktitle\">2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), <\/span><span class=\"tp_pub_additional_pages\">pp. 1528-1529, <\/span><span class=\"tp_pub_additional_year\">2025<\/span>.<\/p><p class=\"tp_pub_menu\"><span class=\"tp_resource_link\"><a id=\"tp_links_sh_218\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('218','tp_links')\" title=\"Show links and resources\" style=\"cursor:pointer;\">Links<\/a><\/span> | <span class=\"tp_bibtex_link\"><a id=\"tp_bibtex_sh_218\" class=\"tp_show\" onclick=\"teachpress_pub_showhide('218','tp_bibtex')\" title=\"Show BibTeX entry\" style=\"cursor:pointer;\">BibTeX<\/a><\/span><\/p><div class=\"tp_bibtex\" id=\"tp_bibtex_218\" style=\"display:none;\"><div class=\"tp_bibtex_entry\"><pre>@inproceedings{10972814,<br \/>\r\ntitle = {Planet Purifiers: A Collaborative Immersive Experience Proposing New Modifications to HOMER and Fishing Reel Interaction Techniques},<br \/>\r\nauthor = {Alexander Giovannelli and Fionn Murphy and Trey Davis and Chaerin Lee and Rehema Abulikemu and Matthew Gallagher and Sahil Sharma and Lee Lisle and Doug A. Bowman},<br \/>\r\ndoi = {10.1109\/VRW66409.2025.00409},<br \/>\r\nyear  = {2025},<br \/>\r\ndate = {2025-01-01},<br \/>\r\nbooktitle = {2025 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW)},<br \/>\r\npages = {1528-1529},<br \/>\r\nkeywords = {},<br \/>\r\npubstate = {published},<br \/>\r\ntppubtype = {inproceedings}<br \/>\r\n}<br \/>\r\n<\/pre><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('218','tp_bibtex')\">Close<\/a><\/p><\/div><div class=\"tp_links\" id=\"tp_links_218\" style=\"display:none;\"><div class=\"tp_links_entry\"><ul class=\"tp_pub_list\"><li><i class=\"ai ai-doi\"><\/i><a class=\"tp_pub_list\" href=\"https:\/\/dx.doi.org\/10.1109\/VRW66409.2025.00409\" title=\"Follow DOI:10.1109\/VRW66409.2025.00409\" target=\"_blank\">doi:10.1109\/VRW66409.2025.00409<\/a><\/li><\/ul><\/div><p class=\"tp_close_menu\"><a class=\"tp_close\" onclick=\"teachpress_pub_showhide('218','tp_links')\">Close<\/a><\/p><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This project presents our solution to the 2025 3DUI Contest challenge! We developed a collaborative, immersive experience that raises awareness about trash pollution in natural landscapes. In our experience, one user collects harmful pollutants while the other user provides medication to impacted wildlife using enhancements to traditional interaction techniques: HOMER and Fishing Reel. We enhanced <a href=\"https:\/\/wordpress.cs.vt.edu\/3digroup\/2025\/01\/15\/planet-purifiers-a-collaborative-immersive-experience-proposing-new-modifications-to-homer-and-fishing-reel-interaction-techniques\/\" class=\"more-link\">&#8230;<\/a><\/p>\n","protected":false},"author":383,"featured_media":3391,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_ppma_block_editor_authors":""},"categories":[11],"tags":[14,18,453,39,78],"ppma_author":[479,556,554,543,544,555,546,398,391],"class_list":["post-3368","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects","tag-3d-interaction-techniques","tag-3dui-contest","tag-collaboration","tag-games","tag-virtual-reality"],"authors":[{"term_id":479,"user_id":383,"is_guest":0,"slug":"agiovannelli","display_name":"Alexander Giovannelli","avatar_url":{"url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2022\/05\/IMG_6776-e1651771320966.jpg","url2x":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2022\/05\/IMG_6776-e1651771320966.jpg"},"author_category":"1","user_url":"https:\/\/agiovannelli.github.io\/","last_name":"Giovannelli","first_name":"Alexander","job_title":"","description":"My expertise lies at the intersection of human-computer interaction, extended reality, and computer-supported cooperative work. I investigate how immersive environments can support effective remote and cross-temporal collaboration, with a growing focus on integrating AI assistance into collaborative XR workflows."},{"term_id":556,"user_id":485,"is_guest":0,"slug":"fionncmurphy","display_name":"Fionn Murphy","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/51d1a9b8877d2575fbbbf21e0a58310dfb2ebcee5405900d453243a7c6b1557d?s=96&d=mm&r=g","author_category":"","user_url":"","last_name":"Murphy","first_name":"Fionn","job_title":"","description":"I am an undergraduate Computer Science major at Virginia Tech."},{"term_id":554,"user_id":486,"is_guest":0,"slug":"dtrey05","display_name":"Trey Davis","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/56118f72dccde862b89457f9da42edf4b159a71d0627a219bebbb248991c73ba?s=96&d=mm&r=g","author_category":"","user_url":"","last_name":"Davis","first_name":"Trey","job_title":"","description":"I am a sophomore undergraduate student studying Computer Science at Virigina Tech. My current work focuses on developing networked VR solutions using HCI design processes."},{"term_id":543,"user_id":0,"is_guest":1,"slug":"chaerin-lee","display_name":"Chaerin Lee","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","author_category":"","user_url":"","last_name":"","first_name":"","job_title":"","description":""},{"term_id":544,"user_id":0,"is_guest":1,"slug":"rexime-abulikemu","display_name":"Rexime Abulikemu","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","author_category":"","user_url":"","last_name":"","first_name":"","job_title":"","description":""},{"term_id":555,"user_id":488,"is_guest":0,"slug":"matthewg03","display_name":"Matthew Gallagher","avatar_url":{"url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2026\/08\/MatthewHeadshot2026.jpg","url2x":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2026\/08\/MatthewHeadshot2026.jpg"},"author_category":"1","user_url":"https:\/\/www.google.com\/maps","last_name":"Gallagher","first_name":"Matthew","job_title":"","description":""},{"term_id":546,"user_id":0,"is_guest":1,"slug":"sahil-sharma","display_name":"Sahil Sharma","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/?s=96&d=mm&r=g","author_category":"","user_url":"","last_name":"","first_name":"","job_title":"","description":""},{"term_id":398,"user_id":105,"is_guest":0,"slug":"llisle","display_name":"Lee Lisle","avatar_url":{"url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2020\/12\/leeLisle.jpg","url2x":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2020\/12\/leeLisle.jpg"},"author_category":"","user_url":"","last_name":"Lisle","first_name":"Lee","job_title":"","description":"Lee is a 5th-year Ph.D. candidate. His Ph.D. work centers around human-computer interaction and immersive analytics with multimedia document sets."},{"term_id":391,"user_id":331,"is_guest":0,"slug":"dbowman","display_name":"Doug Bowman","avatar_url":{"url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2021\/01\/professional_photo2_2019-cropped-square-smaller-scaled.jpg","url2x":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2021\/01\/professional_photo2_2019-cropped-square-smaller-scaled.jpg"},"author_category":"1","user_url":"","last_name":"Bowman","first_name":"Doug","job_title":"","description":"Doug A. Bowman is the Frank J. Maher Professor of <a href=\"http:\/\/www.cs.vt.edu\">Computer Science<\/a> at <a href=\"http:\/\/www.vt.edu\">Virginia Tech<\/a>. He is the principal investigator of the <a href=\"http:\/\/wordpress.cs.vt.edu\/3digroup\/\">3D Interaction Group<\/a>, focusing on the topics of three-dimensional user interfaces, VR\/AR user experience, and the benefits of immersion in virtual environments.\r\n\r\nDr. Bowman is one of the co-authors of <a href=\"https:\/\/www.pearson.com\/us\/higher-education\/program\/La-Viola-3-D-User-Interfaces-Theory-and-Practice-2nd-Edition\/PGM101825.html\">3D User Interfaces: Theory and Practice<\/a>. He has served in many roles for the <a href=\"http:\/\/ieeevr.org\">IEEE Virtual Reality Conference<\/a>, including program chair, general chair, and steering committee chair. He also co-founded the IEEE Symposium on 3D User Interfaces (now part of IEEE VR). He received a CAREER award from the National Science Foundation for his work on 3D Interaction, and has been named an ACM Distinguished Scientist. He received the Technical Achievement award from the IEEE Visualization and Graphics Technical Committee in 2014 and the Career Impact Award from IEEE ISMAR in 2021.\r\n\r\nHis undergraduate degree in mathematics and computer science is from Emory University, and he received his M.S. and Ph.D. in computer science from the Georgia Institute of Technology.\r\n\r\n<a href=\"http:\/\/people.cs.vt.edu\/~bowman\/cv.pdf\">Curriculum vitae (PDF)<\/a>"}],"jetpack_featured_media_url":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-content\/uploads\/sites\/141\/2025\/01\/pp_teaser.png","_links":{"self":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/3368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/users\/383"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/comments?post=3368"}],"version-history":[{"count":5,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/3368\/revisions"}],"predecessor-version":[{"id":3455,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/posts\/3368\/revisions\/3455"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/media\/3391"}],"wp:attachment":[{"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/media?parent=3368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/categories?post=3368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/tags?post=3368"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/wordpress.cs.vt.edu\/3digroup\/wp-json\/wp\/v2\/ppma_author?post=3368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}