OTOY Forums

Finally I seem to be able to get my model from Revit into 3dsMax: it becomes a 250MB Max file. The materials seem to transfer over, although there are some visual anomalies.

But if I try to send the model to Octane, the materials are scrambled and only about 7 are transferred. So my windows and wall are now the same material, for example. They have obscure names like "wire0000000" that don't relate to the names in Revit or in 3dsMax best I can tell.

Unfortunately I don't know 3Ds Max at all well: I don't know how to replace or otherwise manipulate the materials. But I would have thought that if the materials are represented correctly in 3Ds Max, they should pass into Octane correctly. But looking at the output from the exporter, it's clear that it's not finding or processing the materials correctly.

So I think the problem is between 3Ds Max and the exporter.

Any ideas? I'm using the student version of 3Ds Max, which doesn't seem to have Mental Ray installed. It's 2011x64.

tim

The same thing happened to me; convert all your materials to standard materials and re-map them in octane; everything should work out fine; i think the problem is with the new materials max has for mentalray, they're not converted properly.

Thanks: I'll give it a try.

tim

maybe this will help.Please see attached screen shots.
Make 1no Multi/subobject material in Max.Apply it to the model.(see Cube in the max screengrabs)
materils should stay attached when transfered into octain ( See Octain screen grab output which matches the cube in Max)

I think I've figured out a workflow: painful, slow, but functional. Revit to FBX, link the FBX to a MAX document; change all the materials manually to Standard; run the exporter.

The exporter works, but Octane gives a failed assertion error. If I restart it with the OCS file it's OK.

My current FBX file is 95MB; the MAX file is 478MB; the OBJ file is 434MB. The import / export process takes more than 30 minutes each time, however (including checking materials), so it's not really practical to do it more than occasionally. I still have to tweak all the materials in Octane: some are saved to the OCS file, but others seem not to be. Probably something to do with the exporter?

With 8GB RAM, I'm paging when Octane is voxelizing and Max is running.

Here's what I'm working on (level adjustments and resize in Photoshop; a bit of added blur on the second one)... The goal is abstract renders to communicate design intent, not photorealism. The project is a regional opera house with a focus on contemporary performance.

tim