{"id":2010,"date":"2012-10-22T22:00:28","date_gmt":"2012-10-22T22:00:28","guid":{"rendered":"https:\/\/www.cg-blog.com\/?p=2010"},"modified":"2012-11-01T10:19:58","modified_gmt":"2012-11-01T10:19:58","slug":"splotches-vray","status":"publish","type":"post","link":"https:\/\/www.cg-blog.com\/index.php\/2012\/10\/22\/splotches-vray.htm","title":{"rendered":"The splotches’ secret in V-Ray."},"content":{"rendered":"

This brief lesson is part of STEP-4 (Final Settings) <\/strong>and these topics
\ncould be part of final exam to take the certification.<\/p>\n

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Have you ever got a render full of splotches with V-Ray?<\/p>\n

Splotches are the classical disturb for approximated calculations (GI with irradiance map), \u00c2\u00a0and grainess is the classical disturb for direct calculations (v-ray lights, glossy etc..)<\/p>\n

So if you get splotches\u00c2\u00a0you already know: let’s check what’s wrong with GI!<\/strong> (GI = Global Illumination)
\nEven if Irradiance maps is set to HIGH, look how many splotches I got with this scene:<\/p>\n

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 <\/p>\n

This effect is reduced if I render with my final settings. In particular, reducing the Noise Threshold<\/strong> (in SETTINGS) from 0,01 to 0,005 this is what I get:<\/p>\n

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 <\/p>\n

The problem is reduced but not at all! Secret is coming!! \ud83d\ude42
\nJust go to Irradiance map and increase:<\/p>\n