Using Group Masks with vray RT affects specular amount to all materials in the groupmask until a specific amount is reached

[ratus69]

Hello,

I've set a groupmask material with 2 groups inside, using UDIM folder to mask some area
When I try to change the specular amount of the material of one of these group it affects all materials inside the groupmask until I go over 23% in specular amount where it starts to work good

I've made a short video to show you the problem :

https://mega.nz/#!yAVSBTjJ!kkOZpmy5J...GH_xOgL3X44gjY

[vladimir.nedev]

I am not sure what's causing this. What does the gradient texture on specular amount do ?
I need to rework the MODO material support at some point, the current code doesn't match MODO exactly and is hard to follow and fix little issues like this one.

Greetings,
Vladimir Nedev

[ratus69]

Hello Vladimir,

The gradient is designed to create a silk aspect for the tie
If I remove this gradient I have the same exact issue

Regards