{"id":5952,"date":"2016-11-04T20:19:15","date_gmt":"2016-11-04T20:19:15","guid":{"rendered":"https:\/\/www.jurn.link\/dazposer\/?p=5952"},"modified":"2016-11-04T20:19:15","modified_gmt":"2016-11-04T20:19:15","slug":"there-is-no-curvature-pass-in-keyshot","status":"publish","type":"post","link":"https:\/\/jurn.link\/dazposer\/index.php\/2016\/11\/04\/there-is-no-curvature-pass-in-keyshot\/","title":{"rendered":"There is no “curvature pass” in Keyshot"},"content":{"rendered":"

So what is a “curvature pass” in Keyshot? Non-existent<\/strong>, that’s what it is. There is no such render type, as I found after I wasted half an hour trying to discover it. So I’m just dropping this blog post here to save others a similar waste-of-time. This is now the second time in recent weeks that a spurious mention in 3D Artist<\/em> magazine has led me on a ‘wild goose chase’…<\/p>\n

\"cuva\"<\/a><\/p>\n

There is no such render pass in Keyshot…<\/p>\n

\"noren\"<\/a><\/p>\n

I think that what is meant is rather a manual setup<\/em> of a specialist<\/em> render…<\/p>\n

1. Save a version of your final render-ready Keyshot file that you can afford to destroy.<\/p>\n

2. On the model, find all the textures that you want to distress in Photoshop. Double-click on them and turn them to Texture map: Texture: ‘Curvature’. Make sure you have a suitable bump map in place for each texture.<\/p>\n

3. Set up bright colours on the Negative | Zero | Positive colour-pick boxes for ‘Curvature’.<\/p>\n

Now render, and you get a custom render pass that is of some use in Photoshop, using Color Range selection…<\/p>\n

\"selectcol\"<\/a><\/p>\n

Here’s a quick test, without using any extra ‘rust render’:<\/p>\n

\"distress\"<\/a><\/p>\n

From left to right: 1. A test inkpot with a sort-of rough-texture gold surface. 2. Test inkpot with a distressed texture applied, then switched to ‘Curvature’ with strongly alternating colours and rendered. Colour selected with the eye-dropper in Photoshop, and used to select only a section of the scratched art-texture. 4. Selection “paste in place” and blended with the main render, for a very nice distressed patina look. It also serves to mute the shinyness of the main render.<\/p>\n

Neither the gold texture or the super-crackle surface would have been suitable on their own, but this method allows one to get a more subtle blend, with local rim-distress such as around the rim and base of the inkwell.<\/p>\n

I could be wrong, but that seems to be what is meant by the mythical “curvature pass”.<\/p>\n","protected":false},"excerpt":{"rendered":"

So what is a “curvature pass” in Keyshot? Non-existent, that’s what it is. There is no such render type, as I found after I wasted half an hour trying to discover it. So I’m just dropping this blog post here to save others a similar waste-of-time. This is now the second time in recent weeks […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,4],"tags":[],"class_list":["post-5952","post","type-post","status-publish","format-standard","hentry","category-companion-software","category-spotted-in-the-news"],"_links":{"self":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/posts\/5952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/comments?post=5952"}],"version-history":[{"count":0,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/posts\/5952\/revisions"}],"wp:attachment":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/media?parent=5952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/categories?post=5952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/tags?post=5952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}