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    <div class="moz-cite-prefix">Hi Matt,<br>
      that is already fixed in the Master branch, unrelated to the new
      Toolkit and Volume. (Simple parameter mismatch after another
      commit). :)<br>
      <br>
      Thomas<br>
      <br>
      Am 23.08.2014 um 20:37 schrieb Matthew Heimlich:<br>
    </div>
    <blockquote
cite="mid:CAPBuH4aNXFiHKjwSha0aArmBJfS77UoG8G63G3VVtA5A-pAvxA@mail.gmail.com"
      type="cite">
      <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">&lt;<a moz-do-not-send="true"
              href="mailto:martijn.berger@gmail.com" target="_blank">martijn.berger@gmail.com</a>&gt;</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">&lt;<a
                        moz-do-not-send="true"
                        href="mailto:blender@dingto.org" target="_blank">blender@dingto.org</a>&gt;</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>
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                                  <div><br>
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                                  <div><br>
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                              <div class="gmail_extra"><br>
                                <br>
                                <div class="gmail_quote">2014-08-22 8:48
                                  GMT-04:00 Tungerz <span dir="ltr">&lt;<a
                                      moz-do-not-send="true"
                                      href="mailto:tungerz@gmail.com"
                                      target="_blank">tungerz@gmail.com</a>&gt;</span>:<br>
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                                    .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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