{"id":665,"date":"2020-04-07T14:42:05","date_gmt":"2020-04-07T14:42:05","guid":{"rendered":"http:\/\/3d-imaging.co.uk\/blog\/?p=665"},"modified":"2020-04-22T07:30:52","modified_gmt":"2020-04-22T07:30:52","slug":"vray-reinhard-colour-mapping","status":"publish","type":"post","link":"https:\/\/3d-imaging.co.uk\/blog\/vray-reinhard-colour-mapping\/","title":{"rendered":"Vray Reinhard Colour mapping"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_column_text]<\/p>\n<p>By default V-ray Reinhard Colour Mapping is set like this:<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"321\" height=\"134\" src=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard_1.png\" alt=\"\" class=\"wp-image-666\" srcset=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard_1.png 321w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard_1-300x125.png 300w\" sizes=\"(max-width: 321px) 100vw, 321px\" \/><\/figure>\n<p>When set above the total render time was 10min08sec on  i7-4900MQ 4 core CPU laptop the rest following <a href=\"https:\/\/solidrocks.subburb.com\/\">Solidrocks<\/a> Good settings using irradiance map and light cache.<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"1024\" height=\"768\" src=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output-1024x768.jpg\" alt=\"\" class=\"wp-image-667\" srcset=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output-1024x768.jpg 1024w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output-300x225.jpg 300w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output-768x576.jpg 768w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output-1536x1152.jpg 1536w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/render-without-clamp-output.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<p>With the Clamp output ticked and set to 1.0 then the render time was reduced to just 4minutes 58 seconds. The image looks identical.<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"316\" height=\"129\" src=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-clamp-on.png\" alt=\"\" class=\"wp-image-668\" srcset=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-clamp-on.png 316w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-clamp-on-300x122.png 300w\" sizes=\"(max-width: 316px) 100vw, 316px\" \/><\/figure>\n<p>  With Burn Value set to 0.75 then the rendering time reduces to 4 minutes 20seconds.<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"324\" height=\"144\" src=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-burn-value-0-75.png\" alt=\"\" class=\"wp-image-669\" srcset=\"https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-burn-value-0-75.png 324w, https:\/\/3d-imaging.co.uk\/blog\/wp-content\/uploads\/2020\/04\/reinhard-vray-settings-3dsmax-burn-value-0-75-300x133.png 300w\" sizes=\"(max-width: 324px) 100vw, 324px\" \/><\/figure>\n<p> But brighter parts of the image are duller with the Burn Value put to 0.75:<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\">\n<div class=\"wp-block-embed__wrapper\">\nhttps:\/\/youtu.be\/dgO64NztTRI<\/div>\n<figcaption>Differences between 0.75 and 1.0 Burn Value in Reinhard colour mapping in Vray<br \/>\n<\/figcaption>\n<\/figure>\n<p>The difference when turning subpixel mapping on or off is shown in the video below. The highlights become slightly pixelated and have less detail and are more blown out:<\/p>\n<p><br \/>\n<\/p>\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\">\n<div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.youtube.com\/watch?v=tLMnyVcyou8<\/div>\n<figcaption>Difference with subpixel mapping on or off in Vray<br \/>\n<\/figcaption>\n<\/figure>\n<p>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text] By default V-ray Reinhard Colour Mapping is set like this: When set above the total render time was 10min08sec&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":""},"categories":[9],"tags":[],"yst_prominent_words":[],"class_list":{"0":"post-665","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-vray-tutorials"},"menu_order":0,"_links":{"self":[{"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/posts\/665","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=665"}],"version-history":[{"count":0,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/posts\/665\/revisions"}],"wp:attachment":[{"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=665"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=665"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=665"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/3d-imaging.co.uk\/blog\/wp-json\/wp\/v2\/yst_prominent_words?post=665"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}