{"id":88111,"date":"2026-07-21T07:40:13","date_gmt":"2026-07-21T14:40:13","guid":{"rendered":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/?p=88111"},"modified":"2026-07-06T08:33:47","modified_gmt":"2026-07-06T15:33:47","slug":"autodesk-fusion-mirror-and-pattern-compute-options","status":"publish","type":"post","link":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/","title":{"rendered":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion"},"content":{"rendered":"\n<p><em>Avoid broken mirror and pattern results in Fusion by learning when to use Optimized, Identical, or Adjust compute options for accurate outcomes.<\/em><\/p>\n\n\n\n<?php\nfunction autodesk_fusion_cta_horizontal() {\n    ob_start();\n    ?>\n    <style>\n        .cta-section-horizontal {\n            background: #ddd; \/* Much lighter grey background *\/\n            padding: 12px; \/* Adjusted padding *\/\n            border-radius: 8px;\n            box-shadow: 0 3px 5px rgba(0, 0, 0, 0.2);\n            color: #333; \/* Darker text color for better readability *\/\n            display: flex;\n            align-items: center;\n            justify-content: space-between;\n            max-width: 650px; \/* Width adjusted for a more compact look *\/\n            margin: 20px auto;\n            position: relative;\n            flex-wrap: nowrap; \/* Prevent wrapping *\/\n        }\n\n        .cta-section-horizontal img {\n            width: 60px; \/* Slightly larger logo *\/\n            height: auto; \/* Maintain aspect ratio *\/\n            margin-right: 12px; \/* Adjusted spacing *\/\n            background-color: #ddd; \/* Match the background color *\/\n            padding: 6px; \/* Adjusted padding *\/\n            border-radius: 8px; \/* Slightly rounding to match container *\/\n            box-shadow: 0 0 0 4px #ddd; \/* Blend with background *\/\n        }\n\n        .cta-text {\n            flex: 1;\n            margin-right: 12px; \/* Adjusted spacing *\/\n        }\n\n        .cta-title {\n            font-size: 18px; \/* Slightly larger title font size *\/\n            font-weight: bold; \/* Bold title *\/\n            color: #f9a825; \/* Orange color *\/\n            margin-bottom: 4px; \/* Reduced margin *\/\n        }\n\n        .cta-info {\n            display: none; \/* Hide description *\/\n        }\n\n        .cta-buttons {\n            display: flex;\n            gap: 8px; \/* Adjusted button spacing *\/\n            align-items: center;\n        }\n\n        .cta-button {\n            padding: 8px 12px; \/* Button padding *\/\n            font-size: 12px; \/* Smaller font size for buttons *\/\n            font-weight: bold;\n            text-transform: uppercase;\n            border-radius: 4px; \/* Slightly rounded corners *\/\n            border: 2px solid transparent;\n            cursor: pointer;\n            transition: all 0.3s ease;\n            display: inline-flex; \/* Use inline-flex to ensure proper alignment *\/\n            align-items: center; \/* Center align text vertically *\/\n            justify-content: center; \/* Center align text horizontally *\/\n            text-decoration: none !important; \/* Ensure no underlines with !important *\/\n            color: inherit; \/* Use the button's text color *\/\n        }\n\n        .cta-button.white-button {\n            background-color: #fff;\n            color: #333;\n            border: 2px solid #ddd;\n        }\n\n        .cta-button.white-button:hover {\n            background-color: #333;\n            color: #fff;\n            border: 2px solid #f9a825;\n        }\n\n        .cta-button.black-button {\n            background-color: #f9a825;\n            color: #fff;\n            border: 2px solid #f9a825;\n        }\n\n        .cta-button.black-button:hover {\n            background-color: #fff;\n            color: #f9a825;\n            border: 2px solid #fff;\n        }\n    <\/style>\n\n    <div class=\"cta-section-horizontal\">\n        <img decoding=\"async\" src=\"https:\/\/autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2024\/09\/autodesk-fusion-product-icon-400.png\" alt=\"Autodesk Fusion Logo\">\n        <div class=\"cta-text\">\n            <h1 class=\"cta-title\">Elevate your design and manufacturing processes with Autodesk Fusion<\/h1>\n        <\/div>\n        <div class=\"cta-buttons\">\n            <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/trial-intake-flow\" class=\"cta-button white-button\">Get a 30-Day Free Trial<\/a>\n            <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/extensions\" class=\"cta-button black-button\">See Plans and Pricing<\/a>\n        <\/div>\n    <\/div>\n\n    <?php\n    return ob_get_clean();\n}\nadd_shortcode('autodesk_fusion_cta_horizontal', 'autodesk_fusion_cta_horizontal');\n?>\n\n\n\n<p>When working with <a href=\"https:\/\/help.autodesk.com\/view\/fusion360\/ENU\/?contextId=SKT-SKETCH-CREATE-MIRRORS-PATTERNS\">mirror and pattern<\/a> features in <a href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/overview\">Fusion<\/a>, you&#8217;ve likely encountered a frustrating scenario: you select the default &#8220;Optimized&#8221; compute option, the preview shows exactly what you want, but when you click OK, the result doesn&#8217;t match your expectations. Understanding the three compute options available can help you choose the right one from the start and avoid these issues.<\/p>\n\n\n<?xml encoding=\"utf-8\" ?><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=\"Mirror &amp; Pattern Compute Options Explained in Autodesk Fusion\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/D4l0p__FuAA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen style=\"aspect-ratio:500 \/ 281;width:100%;height:auto;\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"the-three-compute-options\" class=\"wp-block-heading\">The three compute options<\/h2>\n\n\n\n<p>Fusion offers three compute types when creating patterns and mirrors:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Optimized<\/strong><\/li>\n\n\n\n<li><strong>Identical<\/strong><\/li>\n\n\n\n<li><strong>Adjust<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Each option handles geometry differently and is suited for specific situations. Let&#8217;s explore how each one works and when to use it.<\/p>\n\n\n\n<h2 id=\"optimized-fast-but-limited\" class=\"wp-block-heading\">Optimized: Fast but limited<\/h2>\n\n\n\n<p>Optimized is the default compute option and the fastest of the three. It creates identical copies by patterning the feature faces rather than recalculating the entire operation.<\/p>\n\n\n\n<h3 id=\"when-optimized-works-well\" class=\"wp-block-heading\">When optimized works well<\/h3>\n\n\n\n<p>This option is great for simple geometry that connects parts repeated multiple times in a design, especially when your timeline frequently changes. The faster recompute time makes it ideal for designs in active development.<\/p>\n\n\n\n<h3 id=\"when-optimized-fails\" class=\"wp-block-heading\">When optimized fails<\/h3>\n\n\n\n<p>Consider a simple example: you create an extruded column with a join operation on top of a base cube, then pattern it in a 3&#215;3 grid. The preview shows nine columns as expected, but the result only produces three.<\/p>\n\n\n\n<p>Why does this happen? Fusion cannot calculate how the faces create a body without including the same face from the original base cube that wasn&#8217;t selected in the pattern. Optimized only patterns the selected feature faces, so it lacks the geometric information needed to properly join the patterned features to the base.<\/p>\n\n\n\n<h2 id=\"identical-more-reliable-still-fast\" class=\"wp-block-heading\">Identical: More reliable, still fast<\/h2>\n\n\n\n<p>The Identical compute option offers a middle ground between speed and reliability. It creates identical copies by replicating the results of the original features rather than just patterning faces.<\/p>\n\n\n\n<h3 id=\"key-characteristics\" class=\"wp-block-heading\">Key characteristics<\/h3>\n\n\n\n<p>When you use Identical on that same 3&#215;3 column pattern, you get all nine columns as shown in the preview. However, there&#8217;s an important distinction: each patterned instance becomes a separate body. Only the original column joins to the base cube. The other eight columns are standalone copies of just the column geometry.<\/p>\n\n\n\n<p>The Identical option computes the shape of the object rather than the complete operation, which means join operations from the original feature don&#8217;t carry through to the patterned instances.<\/p>\n\n\n\n<h3 id=\"best-use-cases\" class=\"wp-block-heading\">Best use cases<\/h3>\n\n\n\n<p>Identical is ideal when you&#8217;re creating geometry that&#8217;s likely to change during design iteration. It&#8217;s more reliable than Optimized and less likely to cause errors, while still maintaining good performance.<\/p>\n\n\n\n<h2 id=\"adjust-maximum-flexibility-maximum-computation\" class=\"wp-block-heading\">Adjust: Maximum flexibility, maximum computation<\/h2>\n\n\n\n<p>The Adjust compute option is the most powerful and computationally intensive choice. It creates potentially differing copies by patterning both the features and calculating their extents or terminals.<\/p>\n\n\n\n<h3 id=\"how-adjust-handles-operations\" class=\"wp-block-heading\">How adjust handles operations<\/h3>\n\n\n\n<p>Using the same column pattern example with Adjust produces interesting results:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The first body remains the original column joined to the base<\/li>\n\n\n\n<li>The next two columns join to the base cube<\/li>\n\n\n\n<li>Three individual solid columns appear as separate bodies<\/li>\n\n\n\n<li>The final three columns join to the opposite side of the base cube<\/li>\n<\/ul>\n\n\n\n<p>Adjust mimics the join operation of the original feature, applying it intelligently across the pattern. This requires significantly more computational power but handles complex situations that the other options cannot.<\/p>\n\n\n\n<h3 id=\"the-power-of-adjust-with-offset-features\" class=\"wp-block-heading\">The power of adjust with offset features<\/h3>\n\n\n\n<p>Adjust becomes particularly valuable when mirroring or patterning features that use offsets from surfaces.<\/p>\n\n\n\n<p>Consider this example: you have a solid block with a curved bottom surface. You create a hole using an extruded cut with a 10mm offset from that curved surface. When you mirror this feature across a midplane:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Optimized<\/strong> produces a simple mirror of the hole<\/li>\n\n\n\n<li><strong>Identical<\/strong> produces the same simple mirror<\/li>\n\n\n\n<li><strong>Adjust<\/strong> creates an extended hole that maps to the offset of the curvature on the opposite side<\/li>\n<\/ul>\n\n\n\n<p>The Adjust option recalculates the offset relationship, creating a hole that properly follows the curved surface geometry on the mirrored side. This intelligent adaptation to the geometric context makes Adjust essential for complex designs.<\/p>\n\n\n\n<h2 id=\"choosing-the-right-option\" class=\"wp-block-heading\">Choosing the right option<\/h2>\n\n\n\n<p>Here&#8217;s a quick reference for selecting the appropriate compute type:<\/p>\n\n\n<?xml encoding=\"utf-8\" ?><figure class=\"wp-block-table MuiTableContainer-root\"><table class=\"has-fixed-layout MuiTable-root DhigTable--verticalAlignment--top\"><tbody><tr class=\" MuiTableRow-root\"><th>Compute Option<\/th><th>Speed<\/th><th>Reliability<\/th><th>Best For<\/th><\/tr><tr class=\" MuiTableRow-root\"><td class=\" MuiTableCell-root\">Optimized<\/td><td class=\" MuiTableCell-root\">Fastest<\/td><td class=\" MuiTableCell-root\">Limited<\/td><td class=\" MuiTableCell-root\">Simple geometry, large patterns, frequently changing designs<\/td><\/tr><tr class=\" MuiTableRow-root\"><td class=\" MuiTableCell-root\">Identical<\/td><td class=\" MuiTableCell-root\">Fast<\/td><td class=\" MuiTableCell-root\">Good<\/td><td class=\" MuiTableCell-root\">Geometry likely to change, when you need separate bodies<\/td><\/tr><tr class=\" MuiTableRow-root\"><td class=\" MuiTableCell-root\">Adjust<\/td><td class=\" MuiTableCell-root\">Slowest<\/td><td class=\" MuiTableCell-root\">Highest<\/td><td class=\" MuiTableCell-root\">Complex situations, offset features, when operations need to adapt to context<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"universal-application\" class=\"wp-block-heading\">Universal application<\/h2>\n\n\n\n<p>These compute options work consistently across all pattern and mirror types in Fusion, including:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Rectangular patterns<\/li>\n\n\n\n<li>Circular patterns<\/li>\n\n\n\n<li>Path patterns<\/li>\n\n\n\n<li>Mirror features<\/li>\n<\/ul>\n\n\n\n<p>Whether you&#8217;re creating a simple linear array or a complex circular pattern, understanding these compute options will help you achieve the results you need on the first try.<\/p>\n\n\n\n<h2 id=\"getting-started\" class=\"wp-block-heading\">Getting started<\/h2>\n\n\n\n<p>The next time you create a pattern or mirror in Fusion, take a moment to consider which compute option best fits your situation. Start with Identical as a reliable default, use Optimized when performance matters and geometry is simple, and reach for Adjust when you need features to intelligently adapt to their geometric context.<\/p>\n\n\n\n<p>By selecting the right compute option from the start, you&#8217;ll spend less time troubleshooting unexpected results and more time designing.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"frequently-asked-questions\" class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1782226103943\"><strong class=\"schema-faq-question\">What are compute option in Fusion patterns and mirrors?<\/strong> <p class=\"schema-faq-answer\">Compute options control how Fusion recreates geometry when you mirror or pattern features. The three options, Optimized, Identical, and Adjust, determine whether Fusion copies faces, replicates results, or recalculates full feature operations.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226124295\"><strong class=\"schema-faq-question\">Why does my Fusion pattern preview look correct but the final result is wrong?<\/strong> <p class=\"schema-faq-answer\">This usually happens when using the Optimized compute option. The preview shows a visual approximation, but the final result may fail because Optimized only patterns selected faces and lacks full geometric context for joins or interactions.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226130916\"><strong class=\"schema-faq-question\">What is the difference between Optimized, Identical, and Adjust in Fusion?<\/strong> <p class=\"schema-faq-answer\">&#8211;<strong>Optimized:<\/strong> Fastest, patterns faces only, limited reliability<br>&#8211;<strong>Identical:<\/strong> Replicates feature results, more reliable, creates separate bodies<br>&#8211;<strong>Adjust:<\/strong> Recalculates full operations, highest accuracy, slowest performance<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226141723\"><strong class=\"schema-faq-question\">When should I use the Optimized compute option in Fusion?<\/strong> <p class=\"schema-faq-answer\">Use Optimized for simple geometry, large patterns, and designs that change frequently where performance matters more than complex feature interactions.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226147502\"><strong class=\"schema-faq-question\">When should I use the Identical compute option in Fusion?<\/strong> <p class=\"schema-faq-answer\">Use Identical when you need more reliable pattern results and expect geometry to change. It\u2019s a good default choice for most workflows but may create separate bodies instead of joining them.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226161865\"><strong class=\"schema-faq-question\">When should I use the Adjust compute option in Fusion?<\/strong> <p class=\"schema-faq-answer\">Use Adjust for complex designs, especially when features rely on offsets, surfaces, or need to adapt to surrounding geometry. It ensures operations like joins and offsets behave correctly in patterns or mirrors.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226170747\"><strong class=\"schema-faq-question\">Do compute options work the same across all pattern types in Fusion?<\/strong> <p class=\"schema-faq-answer\">Yes. Optimized, Identical, and Adjust behave consistently across rectangular, circular, path patterns, and mirror features.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1782226177069\"><strong class=\"schema-faq-question\">What is the best default compute option in Fusion?<\/strong> <p class=\"schema-faq-answer\">Identical is often the best default. It offers a balance of performance and reliability without the limitations of Optimized or the heavy computation of Adjust.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Avoid broken mirror and pattern results in Fusion by learning when to use Optimized, Identical, or Adjust compute options for accurate outcomes. When working with mirror and pattern features in Fusion, you&#8217;ve likely encountered a frustrating scenario: you select the default &#8220;Optimized&#8221; compute option, the preview shows exactly what you want, but when you click [&hellip;]<\/p>\n","protected":false},"author":193,"featured_media":88112,"menu_order":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[476,353,165],"tags":[],"coauthors":[576],"class_list":["post-88111","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","category-getting-started","category-industrial-design","dhig-theme--light"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Understanding Compute Options for Mirror and Pattern in Autodesk Fusion - Fusion Blog<\/title>\n<meta name=\"description\" content=\"Avoid broken mirror and pattern results in Fusion. Learn when to use Optimized, Identical, or Adjust compute options for accurate outcomes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion - Fusion Blog\" \/>\n<meta property=\"og:description\" content=\"Avoid broken mirror and pattern results in Fusion. Learn when to use Optimized, Identical, or Adjust compute options for accurate outcomes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/\" \/>\n<meta property=\"og:site_name\" content=\"Fusion Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-21T14:40:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1920\" \/>\n\t<meta property=\"og:image:height\" content=\"938\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Shannon McGarry\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Shannon McGarry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion - Fusion Blog","description":"Avoid broken mirror and pattern results in Fusion. Learn when to use Optimized, Identical, or Adjust compute options for accurate outcomes.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/","og_locale":"en_US","og_type":"article","og_title":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion - Fusion Blog","og_description":"Avoid broken mirror and pattern results in Fusion. Learn when to use Optimized, Identical, or Adjust compute options for accurate outcomes.","og_url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/","og_site_name":"Fusion Blog","article_published_time":"2026-07-21T14:40:13+00:00","og_image":[{"width":1920,"height":938,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg","type":"image\/jpeg"}],"author":"Shannon McGarry","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Shannon McGarry","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#article","isPartOf":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/"},"author":{"name":"Shannon McGarry","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#\/schema\/person\/e5f9a163190376ac2599069cbc72010d"},"headline":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion","datePublished":"2026-07-21T14:40:13+00:00","mainEntityOfPage":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/"},"wordCount":1195,"image":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#primaryimage"},"thumbnailUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg","articleSection":["Tutorials","Getting Started","Industrial Design"],"inLanguage":"en-US"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/","url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/","name":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion - Fusion Blog","isPartOf":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#primaryimage"},"image":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#primaryimage"},"thumbnailUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg","datePublished":"2026-07-21T14:40:13+00:00","author":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#\/schema\/person\/e5f9a163190376ac2599069cbc72010d"},"description":"Avoid broken mirror and pattern results in Fusion. Learn when to use Optimized, Identical, or Adjust compute options for accurate outcomes.","breadcrumb":{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226103943"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226124295"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226130916"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226141723"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226147502"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226161865"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226170747"},{"@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226177069"}],"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#primaryimage","url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg","contentUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2026\/06\/mirrorsfusion.jpg","width":1920,"height":938},{"@type":"BreadcrumbList","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/"},{"@type":"ListItem","position":2,"name":"Understanding Compute Options for Mirror and Pattern in Autodesk Fusion"}]},{"@type":"WebSite","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#website","url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/","name":"Fusion Blog","description":"Product updates, tips, tutorials and community news.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/#\/schema\/person\/e5f9a163190376ac2599069cbc72010d","name":"Shannon McGarry","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2016\/03\/Shannon-150x150.jpg36a60f654cab7968194bbc9a44c8bb0e","url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2016\/03\/Shannon-150x150.jpg","contentUrl":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-content\/uploads\/2016\/03\/Shannon-150x150.jpg","caption":"Shannon McGarry"},"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/author\/shannonmcgarry\/"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226103943","position":1,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226103943","name":"What are compute option in Fusion patterns and mirrors?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Compute options control how Fusion recreates geometry when you mirror or pattern features. The three options, Optimized, Identical, and Adjust, determine whether Fusion copies faces, replicates results, or recalculates full feature operations.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226124295","position":2,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226124295","name":"Why does my Fusion pattern preview look correct but the final result is wrong?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"This usually happens when using the Optimized compute option. The preview shows a visual approximation, but the final result may fail because Optimized only patterns selected faces and lacks full geometric context for joins or interactions.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226130916","position":3,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226130916","name":"What is the difference between Optimized, Identical, and Adjust in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"-<strong>Optimized:<\/strong> Fastest, patterns faces only, limited reliability<br>-<strong>Identical:<\/strong> Replicates feature results, more reliable, creates separate bodies<br>-<strong>Adjust:<\/strong> Recalculates full operations, highest accuracy, slowest performance","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226141723","position":4,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226141723","name":"When should I use the Optimized compute option in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Use Optimized for simple geometry, large patterns, and designs that change frequently where performance matters more than complex feature interactions.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226147502","position":5,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226147502","name":"When should I use the Identical compute option in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Use Identical when you need more reliable pattern results and expect geometry to change. It\u2019s a good default choice for most workflows but may create separate bodies instead of joining them.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226161865","position":6,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226161865","name":"When should I use the Adjust compute option in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Use Adjust for complex designs, especially when features rely on offsets, surfaces, or need to adapt to surrounding geometry. It ensures operations like joins and offsets behave correctly in patterns or mirrors.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226170747","position":7,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226170747","name":"Do compute options work the same across all pattern types in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. Optimized, Identical, and Adjust behave consistently across rectangular, circular, path patterns, and mirror features.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226177069","position":8,"url":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/autodesk-fusion-mirror-and-pattern-compute-options\/#faq-question-1782226177069","name":"What is the best default compute option in Fusion?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Identical is often the best default. It offers a balance of performance and reliability without the limitations of Optimized or the heavy computation of Adjust.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/posts\/88111","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/users\/193"}],"replies":[{"embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/comments?post=88111"}],"version-history":[{"count":1,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/posts\/88111\/revisions"}],"predecessor-version":[{"id":88118,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/posts\/88111\/revisions\/88118"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/media\/88112"}],"wp:attachment":[{"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/media?parent=88111"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/categories?post=88111"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/tags?post=88111"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.autodesk.com\/products\/fusion-360\/blog\/wp-json\/wp\/v2\/coauthors?post=88111"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}