{"id":13,"date":"2007-04-30T12:42:27","date_gmt":"2007-04-30T10:42:27","guid":{"rendered":"http:\/\/www.stack.nl\/~brian\/LookingAtNothing_WordPress\/?p=13"},"modified":"2014-06-24T13:30:42","modified_gmt":"2014-06-24T04:30:42","slug":"pov-ray-specialist-site","status":"publish","type":"post","link":"https:\/\/lookingatnothing.com\/index.php\/archives\/13","title":{"rendered":"POV-Ray Specialist site"},"content":{"rendered":"<p>Recently, I\u2019ve been very busy with POV-Ray and Matlab. This led me onto a website of a (POV-Ray) visualisation specialist, Paul Bourke. Here, I found useful information on making and using a 3D density file.<\/p>\n<p>A 3D density file is a file that contains density values for each volume element (voxel) in a volume. Magnetic resonance imaging (MRI) is one example of that, but also gas clouds (e.g. as in space), or simply electron density volumes. <\/p>\n<p>Rendering this by means of POV-Ray takes an enormous amount of time, but eliminating the \u201cscattering\u201d behaviour of the medium saves much time. <\/p>\n<p>I\u2019d advise all parties interested in data visualisation to take a look at Paul Bourke\u2019s website. It is filled with many goodies and many good images depicting the many capabilities of the POV-Ray raytracing software.<\/p>\n<p>On a related note, there is a nice article out called \u201c<a href=\"http:\/\/www.ists.dartmouth.edu\/library\/315.pdf\">Digital Doctoring: How to tell the real from the fake<\/a>\u201d by Hany Farid. It discusses the artefacts created when manipulating images. It is a nice introduction to image doctoring effects, but unfortunately is very light on details. Rumor has it that Adobe is working on integrating the details in Photoshop\u00ae. <\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"mh-excerpt\"><p>Recently, I\u2019ve been very busy with POV-Ray and Matlab. This led me onto a website of a (POV-Ray) visualisation specialist, Paul Bourke. Here, I found <a class=\"mh-excerpt-more\" href=\"https:\/\/lookingatnothing.com\/index.php\/archives\/13\" title=\"POV-Ray Specialist site\">[&#8230;]<\/a><\/p>\n<\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":4,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[55],"tags":[56,57],"class_list":["post-13","post","type-post","status-publish","format-standard","hentry","category-preteach","tag-presentations","tag-teaching"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p1gZ2v-d","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/13","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/comments?post=13"}],"version-history":[{"count":2,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions"}],"predecessor-version":[{"id":1238,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/posts\/13\/revisions\/1238"}],"wp:attachment":[{"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/media?parent=13"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/categories?post=13"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lookingatnothing.com\/index.php\/wp-json\/wp\/v2\/tags?post=13"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}