<div dir="ltr">Hey Thomas,<div><br></div><div>Just a heads up, in your build with volumes enabled, MIS doesn't work for environment lighting on the GPU. Turning it on just results in a black background.</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Fri, Aug 22, 2014 at 3:46 PM, Martijn Berger <span dir="ltr"><<a href="mailto:martijn.berger@gmail.com" target="_blank">martijn.berger@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>Hi Thomas,<br><br></div>I think the move to cuda 6.5 and enabling volume are 2 issues and should be treated as such. I do however agree that we should do both.<br></div>Ill update the buildbot to cuda 6.5. The cuda 6.5 cubins should work on older drivers ( pre 331 ) but it would be good to also test and verify.<br>
<br></div>Best regards,<br></div>Martijn<br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Aug 22, 2014 at 5:16 PM, Thomas Dinges <span dir="ltr"><<a href="mailto:blender@dingto.org" target="_blank">blender@dingto.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Hi David,<br>
thanks for the tests!<br>
<br>
* Equi-Angular and MIS is only implemented for Decoupled Ray
Marching, which we cannot enable on GPU yet due to Performance /
Stability issues. I will change the UI accordingly (for example
disable the button when GPU is used). <br>
<br>
* The performance drop when using a texture is to be expected,
Decoupled Ray Marching helps here quite a bit, I guess that's why
CPU is faster in that case.<br>
<br>
Best regards,<br>
Thomas<br>
<br>
Am 22.08.2014 um 15:57 schrieb David Fenner:<br>
</div><div><div>
<blockquote type="cite">
<div dir="ltr">On GTX titan, mike pan test:
<div><br>
</div>
<div>
<div>2.71 official 27.62</div>
<div>vainilla cuda 6.5 28.07</div>
<div>volume cuda 6.5 28.25</div>
<div><br>
</div>
<div><br>
</div>
<div>Notes: Was testing volumes and with a simple world volume
and a lamp now it's actually much faster than cpu (before
gpu was crazy slow). Haven't tested it with more complex
scenes. I noticed though that in gpu volume gets always
sampled as "distance" sampling, no matter the setting. Cpu
however respects the other settings (equiangular, etc). In
distance gpu much faster and its also faster when bounces
are introduced, something that in older builds really killed
gpu performance.</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">2014-08-22 8:48 GMT-04:00 Tungerz <span dir="ltr"><<a href="mailto:tungerz@gmail.com" target="_blank">tungerz@gmail.com</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>Probably nothing,</div>
<div>I was upgrading my Cuda Toolkit to 6.5 (From 6.0)</div>
<div>My Norton antivirus picked up a virus from file
nppc32_65.dll = Suspicious.Cloud.7.F</div>
<div>Anyone else on windows had this?</div>
<div><br>
</div>
<div>Great results, looks like a small price to pay for
gpu volume and scatter.</div>
<div>Worth ever bit of it :)</div>
<div><br>
</div>
<div>Cheers,</div>
<div> ~Tung</div>
</div>
<br>
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