Override material; exclude material instead of object.

[Vizioen]

I know it's a bit of a long stretch; but I have to work a lot with models from Revit or other programs; that aren't set up like I usually built my own models. So overriding all but exclude one or more materials would speed things up when testing lighting or materials.

For instance I replace all glass materials with a vray glass material, but sometimes these are part of multisub materials. So instead of having to detach those and exclude the object with the glass material. I would exlclude the glass material instead of the objects with the glass assigned to them.

Would this be possible.

[alexyork]

+10

Would be incredibly useful for clay renders with glass material excluded, so it remains as-is.

[NicoC]

Hello

Great idea indeed, you've got my vote as well !

[Vizioen]

+10

Would be incredibly useful for clay renders with glass material excluded, so it remains as-is.

Not only for Clay/Glass renders but also for testing a specific material without all the other complex materials.

[alexyork]

Not only for Clay/Glass renders but also for testing a specific material without all the other complex materials.

You could also use it as a really quick and easy way to re-render certain objects based on their mats, a bit like Render Mask, but with more control...

[Morne]

+1, Yip, can come in VERY handy

[JezUK]

+1 - glass in subobject is always an issue with override material.

[DPS]

If you use the same material IDs for all of your glass elements - you could stick a Multisubtex in the refraction slot of your clay material. Set default to black. And set white for your Glass ID. Delete all the other slots.

No longer need to create exclude lists.

[Vizioen]

If you use the same material IDs for all of your glass elements - you could stick a Multisubtex in the refraction slot of your clay material. Set default to black. And set white for your Glass ID. Delete all the other slots.

No longer need to create exclude lists.

Yeah problem is, if you import a model from Revit or whatnot, the materialIDs are assigned automatically. I wouldn't have asked for this (at first, although I see multiple uses out of this now) if it weren't for this.

[Vizioen]

Anyone from ChaosGroup who can maybe reply, if this is a good idea or not?

[vlado]

It is a good idea, but for the moment I'm not sure how to implement it, for the following reasons:

*) 3ds Max doesn't have a built-in dialog or support structures in the SDK for this and we must code those from scratch;
*) I'm not sure what would happen if the material is inside a multi/sub material or inside a blend material. Do you expect the particular layer in the blend material to be replaced by the override material, leaving the other layers intact?
*) Non V-Ray materials will be totally unsupported and there's nothing we can do about them (f.e. Blend, Shellac etc).

Best regards,
Vlado

[Dave_Wortley]

Hey guys have a look at this post:
http://forums.chaosgroup.com/showthr...267#post655267

I posted a scripted solution to this.

[Dave_Wortley]

I've now put the script on my blog with a load of cool extra features.

https://davewortley.wordpress.com/20...-mat-switcher/

Preserve Bump/Displace/Opacity Maps.
Works on all nested material structures.

[Vizioen]

I've now put the script on my blog with a load of cool extra features.

https://davewortley.wordpress.com/20...-mat-switcher/

Preserve Bump/Displace/Opacity Maps.
Works on all nested material structures.

Haha omg you're the best Dave! Thank you so much. I have a new project coming up so I'll be sure to use it. Is it also possible to add a checkbox where you could specify a custom material to exclude the chalk setup? Similar to the exclude object function?

EDIT: nevermind; found it

[Dave_Wortley]

Yeah it's easy enough, I'll do it later.