VRayTriplanarTex not working UVWmap + vray dirt with inches unit

[mak11887]

Hello all!

I have 2 main problems with a FBX file coming from Revit

1. I cannot tweak the texture with "UVW Map" modifier if I use a material with VRayTriplanarTex. To modify the texture I have to work with Map settings or VRayTriplanarTex settings (I have been checking all Map Channels and they are all correct).

2. The second problem is a bit more complex: Within a material I'm using a VrayDirt to simulate a variation on the corners of a balustrade. I've imported the FBX which is coming from Revit and I work in MAX "System Unit Setup" in "Meters" and the VrayDirt effect doesn't work, but I try to switch "System Unit Setup" to "Inches" the VrayDirt appears normally.
If I try to remodel something in the Max file with "System Unit Setup" in "Meters" from a scratch, VrayDirt is OK but if I model something starting from something from the FBX imported (i.e. a copied edge) the issue is coming back again.

I was thinking: A.The FBX file form Revit is corrupted and it keeps the unit from the original Revit file.
B. The FBX file is importend in a wrong way (I use a default preset "Autodesk Architectural (Revit)")

Do you have any idea about that???

Thanks a lot

[joconnell]

1. The triplanar map overrides all the data of any uvwmap. If you want to have similar controls, you can make a helper in your max scene like a point object and then in the triplanar settings you can choose the helper object as a reference object. Now if you move, scale or rotate the helper object, your triplanar mapping will go along with it. It's the same as using the controls in the map though, just a bit more visual.
2. The vray dirt map values use scene units so if you start in metres, the size of the dirt radius might be so large that it's washing over your model instead of only being in the corners. If an inch looked good, that's about 39 times smaller than a meter, try setting your radius to around 1 or even 0.1 and see does it work better.

[mak11887]

Problem N.1 - Perfectly working with the helper point object.
Problem N.2 - Perfectly working with the helper point object.

Thanks a lot for sorting this out!!!