{"id":1389,"date":"2023-08-24T19:51:16","date_gmt":"2023-08-24T19:51:16","guid":{"rendered":"https:\/\/mklasen.com\/?p=1389"},"modified":"2023-08-25T10:12:42","modified_gmt":"2023-08-25T10:12:42","slug":"a-frame-change-an-objects-color-on-hover","status":"publish","type":"post","link":"https:\/\/mklasen.com\/a-frame-change-an-objects-color-on-hover\/","title":{"rendered":"A-Frame: Change an objects color on hover"},"content":{"rendered":"\n<p>A-Frame is quite fun to work with, but it takes a while to get into.. As I&#8217;m doing a project in A-Frame at the moment, you&#8217;ll probably see some more insights on this library on my blog in the next couple of weeks.<\/p>\n\n\n\n<p>Special thanks to <a href=\"https:\/\/diarmid.online\/\">Diarmid Mackenzie<\/a> for helping me out in the <a href=\"https:\/\/aframe.io\/slack-invite\/\">A-Frame Slack Channel<\/a>.<\/p>\n\n\n\n<p>In this case, I&#8217;ve used an object file (.obj) and a material file (.mtl) and loaded it in A-Frame using the following code:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code><a-asset-item id=\"arrow\" src=\"\/assets\/objects\/arrow.obj\">\n<a-asset-item id=\"arrow-mtl\" src=\"\/assets\/objects\/arrow.mtl\"><\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code><a-entity mouse-over class=\"link\" obj-model=\"obj: #arrow; mtl:#arrow-mtl;\"><\/a-entity><\/code><\/pre>\n\n\n\n<p>Now, in order to see the object change it&#8217;s color when hovering over it, we need to add an A-Frame component that hooks into the ThreeJS object to then change the material color, as you see below:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>AFRAME.registerComponent('mouse-over', {\n    init() {\n        this.el.addEventListener('model-loaded', () => {\n            this.el.addEventListener('mouseenter', this.mouseenter);\n            this.el.addEventListener('mouseleave', this.mouseleave);\n        })\n    },\n    mouseenter(evt) {\n        const model = evt.target.getObject3D('mesh');\n        model.traverse((obj) => {\n            if (!obj.material) return\n            obj.material.color.setHex(0xFFFFFF)\n        })\n    },\n    mouseleave(evt) {\n        const model = evt.target.getObject3D('mesh');\n        model.traverse((obj) => {\n            if (!obj.material) return\n            obj.material.color.setHex(0x333333)\n        })\n    },\n});<\/code><\/pre>\n\n\n\n<p>That&#8217;s it! Light and breezy \ud83d\ude42 <\/p>\n\n\n\n<p>Happy developing!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A-Frame is quite fun to work with, but it takes a while to get into.. As I&#8217;m doing a project in A-Frame at the moment, you&#8217;ll probably see some more insights on this library on my blog in the next couple of weeks. Special thanks to Diarmid Mackenzie for helping me out in the A-Frame [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[57],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A-Frame: Change an objects color on hover - Marinus Klasen<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mklasen.com\/a-frame-change-an-objects-color-on-hover\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A-Frame: Change an objects color on hover - Marinus Klasen\" \/>\n<meta property=\"og:description\" content=\"A-Frame is quite fun to work with, but it takes a while to get into.. 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