<div dir="ltr">Hi,<div><br></div><div>CMJ could be slower noticeable slower in certain circumstances compared to Sobol (basically it's slow when operates with NPOT values of samples/dimensions) and rest two parameters might stress it with such a values. Hard to tell without looking into exact file if it's just how math works or there're things to be optimized there. So if you've got sample small .blend file i would love to look into this issue.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Feb 27, 2015 at 1:05 AM, ertuqueque <span dir="ltr"><<a href="mailto:ertuqueque@gmail.com" target="_blank">ertuqueque@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Is this a bug or something that can me improved?<br><br></div>As the title says... Experimenting with a rather complex scene/project I'm working on, I noticed that mixing Branched Path Tracing, Correlated Multi-Jitter sampling and Multiple Importance Sampling on the Background settings, increased rendertimes tremendously (50% to 200%). This huge impact on rendertimes is just present using this three settings together. Other combinations don't have such an impact on rendertimes (barely 5% to 20%).<br><br></div>In simple scenes you can get a huge impact on rendertimes also.<br><br></div>Greets.<br></div>tuqueque.<br></div>
<br>_______________________________________________<br>
Bf-cycles mailing list<br>
<a href="mailto:Bf-cycles@blender.org">Bf-cycles@blender.org</a><br>
<a href="http://lists.blender.org/mailman/listinfo/bf-cycles" target="_blank">http://lists.blender.org/mailman/listinfo/bf-cycles</a><br>
<br></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>
</div>