material override / diffuse override

[mayanic]

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

[Morbid Angel]

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.

[mayanic]

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

[vlado]

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

Best regards,
Vlado

[ricoholmes]

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.

[bigbossfr]

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

[ricoholmes]

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

[mayanic]

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

[snivlem]

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.

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.

[ricoholmes]

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