OTOY Forums

Hey all,

I do Realflow animations and mesh them inside 3DsMax using Frost. I prefer this method over exporting mesh sequences from RealFlow because of the increased control of the mesh look over what Realflow provides.

However, Octane cannot render particle systems (v2.32) and although Frost is making a mesh, Octane can't render it either. Oh well, whatever. Does anyone know of a decent solution or workaround for this issue? Is there a way to export a mesh from Frost in the vein of "convert to poly"? Or perhaps any scripts that force Octane to load the mesh somehow?

I would love to be able to render this fluid sim with Octane. Any suggestions or solutions are welcome. I haven't tried the mesh sequence directly from Realflow with Octane yet so I'm not sure if there'd be issues there either. I've seen render examples from that online so I at least know it's possible. There's very little discussion online that I could find regarding this.

I found this thread with a script for loading a RealFlow mesh, but I assume that's for the mesh straight from realflow and he states that he has to manually advance the time for each frame in order to get them to load properly for the render.

viewtopic.php?f=27&t=46260

we told them about this problem manytimes that octane does not update realflow mesh during rendering for some reason. unless you scroll timeslider manually you will see results in octane viewport

wrenthereaper wrote:I found this thread with a script for loading a RealFlow mesh, but I assume that's for the mesh straight from realflow and he states that he has to manually advance the time for each frame in order to get them to load properly for the render.

viewtopic.php?f=27&t=46260

this one is nice but makes rendering a lot slower since it is like starting a new rendering every frame. I hope otoy can fix mesh update

coilbook, I think it never will happen. why you do not fit stitched alembic file from RealFlow? it is perfectly rendered in 3ds max. in octane standalone even has motion blur.

For the record I was able to get 3dsMax Octane to render the Frost version of the Realflow simulation (I couldn't get the above script to work properly). It looks great and renders super fast, as expected, but as you guys have mentioned you have to not only manually advance the time slider, you also have to reload all the geo for every frame.

So my workflow was to load the geo and render the frame in the Octane buffer window, then save out the frame to Max's buffer window and save it there. Then I'd advance one frame, reload the geo, render, save out, rinse and repeat. A very tedious workaround for something that I feel could be easily fixed with something as simple as a script. I'm hoping OTOY will have a fix at some point, and I assume at the very least it'll be fixed in Octane 3. I've finished the project now so I'm not in any real rush to get a fix for now.

I 'd love to see this feature too. It would save a lot of work. My workaround is importing alembic animation stitched in realflow - I import it by VrayProxy (!) and then it renders fine in Octane. Other way is to mesh frost and convert it to alembic/xmesh cache and then octane will render it as it should. I did this many times.

And maybe perhaps exporting frosted fluid to octane proxy is enough? Never tried this.

mikinik wrote:coilbook, I think it never will happen. why you do not fit stitched alembic file from RealFlow? it is perfectly rendered in 3ds max. in octane standalone even has motion blur.

Render target.mp4

Hi Iwish I knew how to fit stitched alembic file from RealFlow. is there any step by step tutorial

Norman_Stansfield wrote:I import it by VrayProxy (!) and then it renders fine in Octane.

nice trick!
coilbook, in stitching utility you must specify sequence alembiс file and path to save stitched file, and all.