<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV>Hi,</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I've seen a few posts around the forums and in the bug tracker about render errors when using raytracing, in the form of black or white dots. I'd never experienced that myself (using mainly OS X and cygwin builds), and when I downloaded one of the test files on the tracker, I couldn't reproduce the bug either.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>This led me to guess that the problem may be due to the official MSVC build, and perhaps some sort of optimisation difference there. In a recent thread about this issue [1] I suggested that the person experiencing the problem try a cygwin build that I made, and his problem went away.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Could the person who's doing the official BF Windows builds with MSVC please check on this? One of the bug reports is in the tracker [2] with a link to a test file. I think it would be a good idea to try that file, see if you can reproduce the bug, and check with various compiler settings to see if that has any effect. It would be very unfortunate to have this quite serious problem in 2.45 as well.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>cheers,</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Matt</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>[1] <A href="http://blenderartists.org/forum/showthread.php?p=917833#post917833">http://blenderartists.org/forum/showthread.php?p=917833#post917833</A></DIV><DIV>[2] <A href="https://projects.blender.org/tracker/index.php?func=detail&aid=6861&group_id=9&atid=125">https://projects.blender.org/tracker/index.php?func=detail&aid=6861&group_id=9&atid=125</A></DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Grande; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Grande; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Lucida Grande; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>------------------------------------------</DIV><DIV>Matt Ebb . matt@mke3.net . <A href="http://mke3.net">http://mke3.net</A></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN></SPAN></SPAN> </DIV><BR></BODY></HTML>