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VrayRT - Octane - Arion: my conclusions

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  • VrayRT - Octane - Arion: my conclusions

    After having tried and used these gpu rendering engines I can say that:

    The fastest, full featured is Octane.
    What I don't like of Octane is the lack of a full integration with 3ds Max, but I hope that Refractive will release soon the promised plugin.
    Octane can open really huge scenes without crash and you can rotate them in realtime, sometime faster than the directx shading. I don't like too much overlapping wires connection because you can't zoom in-out the node scheme, you can't optimize connections, you can't rearrange, etc. You can't copy-paste and instance nodes, drag colors between slots.
    By the way, the best Octane part is in the material editor. Tons of parameters, you can create infinite (?) nested materials with nodes, you have 3 rendering modes, you can render real caustics. Then we have skyportal material, very useful for well illuminated interior renderings.
    The worst Octane part is the impossibility to manage every single name object. You don't have fresnel materials or subscattering options.

    Arion has the best control panel, drag and drop materials, fresnel, sss materials, a better way to stack bsdf layers, a better antialiasing, no fireflies in pathtracing.
    Arion is hybrid and if you got a renderfarm you can use your gpus. Arion has an offline library very useful.
    The best Arion part is in the possibility to do networked rendering, very useful for animations. My dual 3.47Ghz exacore Xeon are equivalent to a one GTX580.
    The worst Arion part is that it crashes a lot of time. Ok, I tested the demo beta, but all the analyzed softwares are practically betas.

    Vray RT has the best integration with Max, works like Vray legacy, but lacks tons of Vray features.
    Crashes with the latest Nvidia drivers. No support for procedural materials (checkerboard, noise, gradient ramps, etc.). No fresnel, no multilayered materials, no skyportals, no real caustics, no hybrid option gpu+cpu that you can turn on with the control panel, you have to add a system variable in windows and often doesn't work. Vray RT 2.0Sp1 is unstable.
    The RT cpu part goes in conflict with the gpu engine, so the cpu buckets are different, you get a patchwork like rendering.
    I think that Chaos has to do a lot of work with its gpu rendering engine.

    The final conclusion is that Octane is the winner.

  • #2
    I'll be interested in reading about your final conclusions in about a year from now, once the software you mention is actually somewhat matured. For now you are comparing entities that are works in progress at best.

    -Alan

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    • #3
      Hehe, like Alan mentioned, a lot of things can change in a year... Also keep in mind that V-Ray RT has a CPU mode which is way more advanced than any of the other solutions you mentioned.

      Best regards,
      Vlado
      I only act like I know everything, Rogers.

      Comment


      • #4
        I agree Octane is speedy, but the problem is the translation between max->octane is a pain and somewhat primitive. The whole point of realtime is to have interactivity, that means changing the model as well. You pretty much have to freeze a model at a certain stage in order to use octane at which point you might as well stick to the native env.

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        • #5
          Originally posted by vlado View Post
          Hehe, like Alan mentioned, a lot of things can change in a year... Also keep in mind that V-Ray RT has a CPU mode which is way more advanced than any of the other solutions you mentioned.

          Best regards,
          Vlado
          RT cpu is usefull, is ok only to check materials and not for production noise free renderings. RT renderings aren't comparable to Fryrender or Maxwell. I'm happy only with vray.
          I don't understand why Chaos doesn't update RT gpu, are passed months that Nvidia upgaded its drivers and are passed month that I can't use RT.
          Have I to wait one year for the next developments? iRay, Octane and Arion works NOW with the latest driver and I don't understand why you have chosen only OpenCL. Dont' you like the Cuda logo?

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          • #6
            Originally posted by saudade View Post
            I don't understand why Chaos doesn't update RT gpu, are passed months that Nvidia upgaded its drivers and are passed month that I can't use RT.
            There is a lot involved in shipping a new V-Ray version; unfortunately I can't do it as often as I would like. If you email me to vlado@chaosgroup.com I can get you an updated version that works fine with newest drivers.

            Dont' you like the Cuda logo?
            Nope, I don't

            Best regards,
            Vlado
            I only act like I know everything, Rogers.

            Comment


            • #7
              I don't work for the Chaos Group, but I would suspect that they are using OpenCL so that they are not in nVidia's pocket, so-to-speak. This may slow things down a bit in the short term but in the long run you will have a much more independent and capable application, not to mention hardware vendors who must compete and therefore keep pricing down. Definitely worth waiting for, in my opinion.

              -Alan
              Last edited by Alan Iglesias; 15-10-2011, 10:34 AM.

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              • #8
                Vlado, would it be possible to make the beta more available? I hate fiddling with drivers and doing that kind of unproductive try and error.

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                • #9
                  You can email me to vlado@chaosgroup.com and I'll see what can be done about that; the next service pack is in December anyways.

                  Best regards,
                  Vlado
                  I only act like I know everything, Rogers.

                  Comment


                  • #10
                    I hope that in the next sp you will add some options to enable-disable gpus and cpus directly in the gui without the use of system variables (hybrid mode), numbers of cores included.

                    Regards

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                    • #11
                      when (for rt-gpu)? :

                      1) sss
                      2) layered materials
                      3) dispersion
                      4) skyportals
                      5) instances
                      6) proxies

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                      • #12
                        Layered materials and proxies (non-instanced for the moment) will be included with the next service pack in December. Other features will be included in the spring service pack.

                        Best regards,
                        Vlado
                        I only act like I know everything, Rogers.

                        Comment


                        • #13
                          Originally posted by vlado View Post
                          Layered materials and proxies (non-instanced for the moment) will be included with the next service pack in December. Other features will be included in the spring service pack.

                          Best regards,
                          Vlado
                          this is a great news!

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