{"id":3253,"date":"2013-11-11T12:37:39","date_gmt":"2013-11-11T12:37:39","guid":{"rendered":"https:\/\/www.jurn.link\/dazposer\/?p=3253"},"modified":"2013-11-11T12:37:39","modified_gmt":"2013-11-11T12:37:39","slug":"tutorial-how-to-make-a-bulb-light-glow-in-carrara-8","status":"publish","type":"post","link":"https:\/\/jurn.link\/dazposer\/index.php\/2013\/11\/11\/tutorial-how-to-make-a-bulb-light-glow-in-carrara-8\/","title":{"rendered":"Tutorial: How to make a bulb light glow in Carrara 8"},"content":{"rendered":"

Following my recent tutorial on “how to make a simple sphere glow in Carrara 8”<\/a>, I’ve found that there’s also a way to have a light<\/strong> glow, rather than have geometry<\/strong> glow. Doing it this way takes whole lot less render time than my earlier technique, but the effect seems less convincing unless you want a standard “car headlight” effect. So it seems useful for middle and far-distance lights, especially in instances where you have some geometry objects intersecting the light — objects that would complicate any Photoshop postwork using a gradient glow filter.<\/p>\n

1. First, drop a bulb light onto the stage…<\/p>\n

\"bulb1\"<\/a><\/p>\n

2. Click on the “General” tab in Carrara’s Assemble room. Boost your “Brightness” slider way up, maybe between 170% to 200%. Change the bulb’s colour to the colour you need. Run the “Range Falloff” slider up to 100%. Make sure that “Cast Shadows” is turned on.<\/p>\n

\"bulb2\"<\/a><\/p>\n

3. Now switch to the adjacent “Effects” tab. There, tick “Light Sphere”, then click the edit button next to it.<\/p>\n

\"bulb3\"<\/a><\/p>\n

4. Clicking in the “Edit” box will pop-up a window containing all the “Light Sphere” effects. Here, turn on “Full Rendering” and “Auto Update”, so you can preview the glow effect in real-time. Then increase “Intensity” to 100%, “Radius” to about 500, and “Quality” to perhaps 60%.<\/p>\n

\"bulb4\"<\/a><\/p>\n

5. Here’s the final PNG render of the glowing bulb light, with the above settings…<\/p>\n

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

Compare this render to the the more subtle results I got from making a textured sphere glow in the last tutorial…<\/p>\n

\"sphereglow8\"<\/a><\/p>\n

So, my conclusions from my Carrara glow experiments (so far) is: <\/p>\n

* glowing bulb lights<\/strong> are vastly faster to render, and also more suitable for use as middle and far-distance lights in a scene.<\/p>\n

* glowing textured geometry<\/strong> is likely to give far better and more subtle effects, and would be a good choice for props and characters that are close to the camera. Although choosing this way to make things glow is likely to significantly increase render time.<\/p>\n

(As before, note that Google Chrome’s graphics rendering-engine can’t handle the subtle graduations of the light spillover, and will dither\/”band” the glow effect thus making the renders look rather ugly)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Following my recent tutorial on “how to make a simple sphere glow in Carrara 8”, I’ve found that there’s also a way to have a light glow, rather than have geometry glow. Doing it this way takes whole lot less render time than my earlier technique, but the effect seems less convincing unless you want […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,21,12],"tags":[],"class_list":["post-3253","post","type-post","status-publish","format-standard","hentry","category-carrara","category-lighting","category-tutorials"],"_links":{"self":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/posts\/3253","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=3253"}],"version-history":[{"count":0,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/posts\/3253\/revisions"}],"wp:attachment":[{"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/media?parent=3253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/categories?post=3253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jurn.link\/dazposer\/index.php\/wp-json\/wp\/v2\/tags?post=3253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}