Interesting to compare these two side by side using the exact same Revit file. I’m seeing more differences than expected as I inspect these more closely.
Benefits of Revit Export:
- Seems to be some better hierarchy management? I’m noticing my objects are sorted by floor in World Outliner which is nice, not sure why.
- Material instances used… this seems nice and I’m not seeing this with the Max version. We will replace all materials anyway in either case.
- A few materials came in with correct bitmaps that are actually missing through Max. I believe this is due to a pathing error in our Revit model however and is easily fixed.
Errors in Revit Export:
- Certain objects simply didn’t come in. For example, entire roof is gone. This comes in fine if you go through Max.
- Less total objects? My DatasmithAssets folder from Max has 2,864 objects while my Revit DatasmithAssets folder has 908?
- Texture UV’s are completely destroyed… over half of the materials have completely incorrect texture UVs and textures are completely wrong size visually. Some bricks are now like 50’ tall for example.
- Entire scene came in rotated 180 degrees. Or perhaps the Max scene was rotated 180 degrees, but either way I’m not sure why these wouldn’t exactly match.
So right now, I simply can’t trust the integrity of the Revit export due to the missing objects and destroyed UV’s, and will continue to use Revit > Max > UE4 in any production scenario. I’m happy to provide more specific feedback or examples of issues if it’s helpful.