<div dir="ltr">Watertight ray-to-triangle intersection addresses problem when intersection might be wrongly ignored in the cases when ray hits edge of triangle, causing light leaks.<div><br></div><div>Example of issues caused by non-watertight intersection nature could be found in the tracker, for example <a href="https://developer.blender.org/T34094">https://developer.blender.org/T34094</a></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Aug 22, 2015 at 4:57 AM, Zauber Paracelsus <span dir="ltr"><<a href="mailto:zauber@gridmail.org" target="_blank">zauber@gridmail.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">So, "Watertight Intersection" was a thing that was added to cycles a<br>
couple releases ago. And I'm sure this has been discussed elsewhere,<br>
but what exactly is it? Is it some raytracing method designed to<br>
account for floating point inaccuracy?<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div><span style="color:rgb(102,102,102)">With best regards, Sergey Sharybin</span></div></div>
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