{"id":1518,"date":"2021-12-03T12:00:00","date_gmt":"2021-12-03T03:00:00","guid":{"rendered":"https:\/\/zki-design.com\/?p=1518"},"modified":"2026-03-11T20:07:24","modified_gmt":"2026-03-11T11:07:24","slug":"reduce-render-time-with-hdri","status":"publish","type":"post","link":"https:\/\/zki-design.com\/en\/blog\/blender\/reduce-render-time-with-hdri\/","title":{"rendered":"Rendering cost reduction when using HDRI"},"content":{"rendered":"<p>Introduced in this video,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">How to reduce rendering cost when using HDRI<\/span><\/strong>I would like to pick up only the main points in Japanese.\u00a0<\/p>\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=\"Blender Cycles - Render 10x faster with a SINGLE setting!\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/00WsxfVzbWA?feature=oembed\" 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<h3 class=\"is-style-vk-heading-double_bottomborder_black wp-block-heading\"> Adjusted the number of samples in World <\/h3>\n\n\n\n<p><strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Using HDRI for World<\/span><\/strong>,In general<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">render time increases<\/span><\/strong>. In the video, when using HDRI with a resolution of 16k, it is stated that the loading time of lighting increased and the rendering time increased significantly.\u00a0<\/p>\n\n\n\n<p>As a solution,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">How to adjust the number of World samples<\/span><\/strong>is introduced.<\/p>\n\n\n\n<p>By default, World&#039;s &quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Sampling<\/span><\/strong>&quot;But&quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Auto<\/span><\/strong>\u201d. &quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">None<\/span><\/strong>, the<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Faster render times, but more noise<\/span><\/strong>.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"834\" height=\"460\" src=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-19.png\" alt=\"\" class=\"wp-image-1520\" srcset=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-19.png 834w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-19-300x165.png 300w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-19-768x424.png 768w\" sizes=\"auto, (max-width: 834px) 100vw, 834px\" \/><\/figure>\n\n\n\n<p>in the video<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Change to &quot;Manual&quot;<\/span><\/strong>death,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Set &quot;Map Resolution&quot; and &quot;Max Bounces&quot; to &quot;1024&quot;<\/span><\/strong>by doing,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Rendering time does not increase so much compared to &quot;None&quot;<\/span><\/strong>,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Not much difference in noise compared to &quot;Auto&quot;<\/span><\/strong>It has been pointed out that\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"723\" height=\"293\" src=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-18.png\" alt=\"\" class=\"wp-image-1519\" srcset=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-18.png 723w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-18-300x122.png 300w\" sizes=\"auto, (max-width: 723px) 100vw, 723px\" \/><\/figure>\n\n\n\n<p>&quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">None<\/span><\/strong>&quot;in the case of,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Render time is 9.5 seconds<\/span><\/strong>is. However<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Noticeable white noise<\/span><\/strong>.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"978\" src=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-1920x978.png\" alt=\"\" class=\"wp-image-1523\" srcset=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-1920x978.png 1920w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-300x153.png 300w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-768x391.png 768w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-1536x783.png 1536w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-2048x1044.png 2048w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-1200x612.png 1200w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-22-1980x1009.png 1980w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<p>&quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Auto<\/span><\/strong>&quot;in the case of,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Rendering time is 91.6 seconds<\/span><\/strong>is.<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Much less white noise, but almost 10x longer rendering time.<\/span><\/strong>\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"972\" src=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-1920x972.png\" alt=\"\" class=\"wp-image-1522\" srcset=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-1920x972.png 1920w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-300x152.png 300w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-768x389.png 768w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-1536x778.png 1536w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-2048x1037.png 2048w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-1200x608.png 1200w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-21-1980x1002.png 1980w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<p>&quot;<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Manual<\/span><\/strong>&quot;in the case of,<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Render time is 11.1 seconds<\/span><\/strong>is.<strong><span data-color=\"#fffd6b\" style=\"background: linear-gradient(transparent 60%,rgba(255, 253, 107, 0.7) 0);\" class=\"vk_highlighter\">Less white noise and less rendering time.<\/span><\/strong>\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"973\" src=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-1920x973.png\" alt=\"\" class=\"wp-image-1521\" srcset=\"https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-1920x973.png 1920w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-300x152.png 300w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-768x389.png 768w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-1536x778.png 1536w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-2048x1038.png 2048w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-1200x608.png 1200w, https:\/\/zki-design.com\/wp-content\/uploads\/2021\/12\/image-20-1980x1003.png 1980w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/figure>\n\n\n\n<p>In order to make the scene more realistic, there are many opportunities to map HDRIs to the background, so these tips are very helpful.\u00a0<\/p>","protected":false},"excerpt":{"rendered":"<p>This time, I will pick only the main points in Japanese about how to reduce the rendering cost when using HDRI, which is introduced in this video [\u2026]<\/p>","protected":false},"author":1,"featured_media":1525,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,7],"tags":[13,2,24,21],"class_list":["post-1518","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all","category-blender","tag-archiviz","tag-blender","tag-lighting","tag-rendering"],"brizy_media":[],"_links":{"self":[{"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/posts\/1518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/comments?post=1518"}],"version-history":[{"count":2,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/posts\/1518\/revisions"}],"predecessor-version":[{"id":1528,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/posts\/1518\/revisions\/1528"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/media\/1525"}],"wp:attachment":[{"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/media?parent=1518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/categories?post=1518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zki-design.com\/en\/wp-json\/wp\/v2\/tags?post=1518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}