material override / diffuse override

V-Ray for Maya V-Ray for Maya :: General
1

Hi everyone!

I would like to override my default material (mainly the diffuse channel) with a grey color in order to test my shader’s displacement and bump attributes.
Is there a switch to activate a temporarily override?

hope to hear from you
br matt

2

In your material/shading group there is a custom additional vray attribute called material override, in it you can plugin your lambert/grey shader to do the tests.

3

alright - i already found that
but I just want to judge the bump / displacement effects - without diffuse
utilizing the material overrides I would have to rewire all the other maps, don’t I?!

hope to hear from you soon
br mayanic

4

Unfortunately there is no option to override just the diffuse color, while leaving bump and displacement in place.

Best regards,
Vlado

5

I was just about to ask something similar, but on a more global scale (apologies if I’m Hijacking the thread at all).

Is there a way in Maya to temporarily override all shaders ? Primarily for lighting tests where some materials are killing render times.
A bit like the ExtraTex Element, but with a shader and not having to render the RGB.

6

This option is in my DeeX VRay Arsenal (lambert overrite)…

7

Arsenal looks very intriguing (more and more). Any news on availablity ?

8

for lighting my scenes i just create a new render layer and assign a material override to it - works just fine

i often test normal maps and displacements against a 50% grey diffuse color . .. a global switch that overrides all shader’s diffuse inputs would be gorgeous
it would take forever when i start scripting something that remembers the actual connections and rewires them afterwards . . hehe

9

Maya’s Render Layers with global material override. It works even with vray proxies.

But I wouldn’t use this as Autodesk have never properly written Render Layers in Maya. Ever.

10

Haha, good grief, of course.
I’ve become so used to using Vray and not needing Render Layers due to render elements, I’d forgotten the basics of Maya (!)
(How long have I been using Maya ??)

And snivlem.. totaly agreed. Probably why I’ve probably put it out of mind. I’ll put it down to “traumatic memory loss” rather than plumb ignorance ;p