OctaneRender™ Standalone 2.21.1

[mikinik]

Ok, now I understand. The Alembic file you have sent to me contains only particle information (with velocities) and the RFMeshLoader creates a polygon/triangle mesh from it. The generated meshes do not have that vertex velocity information anymore.

abstrax, you have something to confuse, or I do not understand you. mesh generation occurs in realflow, I sent you ready alembic file with animated mesh. RFMeshLoader nothing to do with, you open alembic file directly in 3ds max. rfmeshloader not generate mesh, it opens sequence .bin files, where already have mesh from realflow.

We can have a look and try to get it maybe directly from the plugin, but for that we would need to get in touch with NextLimit first.

you can inform, please, when will be any result?

Could you give me this scene?

this bug is difficult to reproduce, obtained in one case out of ten, and only when the mesh is loaded through RFMeshLoader plugin, even in my file. you have RFMeshLoader?

[abstrax]

abstrax, you have something to confuse, or I do not understand you. mesh generation occurs in realflow, I sent you ready alembic file with animated mesh. RFMeshLoader nothing to do with, you open alembic file directly in 3ds max. rfmeshloader not generate mesh, it opens sequence .bin files, where already have mesh from realflow.

When I try to open the Alembic file in Octane it doesn't contain any triangles. How did you create the Alembic file and how did you load it into 3ds max? I.e. which plugin do you use and how do you set up the import?

EDIT: We had a look at the file content and the file seems to be corrupt. At least the HDF5 reader of Alembic can't read most of the file content.

you can inform, please, when will be any result?

I don't know. Dmitry will have a look at it, when he gets to it. As I said, we don't have RealFlow here at the moment and have no way to test. So we need to get it first, before we can try to solve the vertex motion blur problem.

[mikinik]

When I try to open the Alembic file in Octane it doesn't contain any triangles. How did you create the Alembic file and how did you load it into 3ds max? I.e. which plugin do you use and how do you set up the import?

EDIT: We had a look at the file content and the file seems to be corrupt. At least the HDF5 reader of Alembic can't read most of the file content.

yes there is some sort of problem. alembic file from realflow not open in octane. if you do import a 3DS max, and then export to alembic then it opens in octane. Autodesk have made it possible to import\export alembiс file in 3DS Max 2015 Extension 1, somehow I forgot about it. realflow generates a mesh in the sequence alembic files, further I use tool "Stitcher Tool" in realflow, in order to stitch sequence into a single animated alembic file.

I don't know. Dmitry will have a look at it, when he gets to it. As I said, we don't have RealFlow here at the moment and have no way to test. So we need to get it first, before we can try to solve the vertex motion blur problem.

clear, I'll wait. please do your best to fix motion blur.
_______
abstrax, I sent new link, see please.

[miko3d]

hey Guys,

Just done a quick check of realflow meshes in Octane standalone and it all seems good,lovely mblured blobs!

If you are having problems just double check your alembic exporter.

[mikinik]

well. I was talking in PM with miko3d. it does not work with RealFlow, he works in Houdini and there is no problem with the mesh from Houdini in octane. below I have attached a picture of our conversation.. but octane has some issues with importing alembic file. in Maya and 3ds max, it opens well, octane doesn't open. also there is not any no motion blur in octane not in 3ds max via the connector. information about the velocities in alembic file is, it can be seen in the Maya attribute editor. but motion blur from RealFlow mesh no where.
abstrax, please do not leave this matter unattended in the future.

If you are having problems just double check your alembic exporter.

settings for exporting alembic file in RealFlow not.

[mikinik]

figured out how to resave file to octane understood him. as I suspected there is a problem in octane with the motion blur in 3ds max. octane standalone rendered motion blur is well, octane in 3ds max, on same mesh rendered without motion blur, even though all settings turned on. here is alembic file, can see for yourself - https://www.dropbox.com/s/841ap4ezkvl1u ... r.rar?dl=0
it is sad that I must first himself all to understand and then prove that something is not working properly.

abstrax, can it be fixed? why I need resave alembic file to octane understood him, whereas other apps open it without problems?

[miko3d]

just to be clear,
there is no problem rendering mblured geometry that changes topology per frame in Octane Standalone(like: realflow meshes) , there seem to be a problem in how realflow exports alembics that octane doesnt like as it wont import any geometry , nothing to do with mblur and it could be something as simple as fiddling with naming and export settings in realflow .
Worst case:Exporting from a third party software solves the issue.
Cheers,

Mikel.

[mikinik]

I've said in RealFlow are no settings to export the geometry in alembic. I agree in the standalone octane no problems with motion blur, there are problems with importing alembic file. problem is exactly in octane, not the export settings in RealFlow, because the third-party software opens without problems these alembic files.

[abstrax]

figured out how to resave file to octane understood him. as I suspected there is a problem in octane with the motion blur in 3ds max. octane standalone rendered motion blur is well, octane in 3ds max, on same mesh rendered without motion blur, even though all settings turned on. here is alembic file, can see for yourself - https://www.dropbox.com/s/841ap4ezkvl1u ... r.rar?dl=0
it is sad that I must first himself all to understand and then prove that something is not working properly.

abstrax, can it be fixed? why I need resave alembic file to octane understood him, whereas other apps open it without problems?

When you render the Alembic file in 3ds max with some other render engine, does it render motion blur correctly?

I asked Andrey and he said that there is no vertex speed information in 3ds max meshes - at least there doesn't seem to be a way to read the vertex speeds via the 3ds max plugin API. I don't have any knowledge about the 3ds max plugin API, so I don't know if there is a way around that limitation.

[mikinik]

in vray can render this alembic file with motion blur opening it through vray proxy. in mentalray can render motion blur only through rfmeshloader.
maybe in the future it is possible to make alembic file format was supported in octane proxy?