Anyone who can do this little MEL ?

# 1 16-12-2006 , 05:59 AM

Registered User
Join Date: Mar 2003

Location: Billund, Denmark

Posts: 992

I am in the need of changing a bunch of shaders and turn the Ambient color = 0,0,0 and the translucency = 0

can anyone do that for me ?

Carsten Lind
Senior 3D Artist,
Maya Software Manager & Maya Instructor
LEGO Systems A/S

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# 2 16-12-2006 , 06:29 AM

Subscriber
Join Date: Oct 2006

Location: Melbourne

Posts: 313

I can't work out a way to quickly do it with MEL, but the first question that springs to mind is how are you going to select the materials that you want to change?

If they al had a similar name i.e blinn1, blinn2, blinn3 etc then a MEL would be great; just type in the string to search for and then apply the modifications to all shaders whose names contain that string..

If however, you were going to pick them all in the hypershade then you could just open up the channel box and change all materials in 6 very short steps. I'm not able to think of a situation that would warrant all the extra coding just to save a few simple steps, here's my way:

(1) Select Materials in hypershade
(2) Open channel box
(3) Drag-select the 3 Ambient fields to the right of the name
(4) Enter 0
(5) Select Translucence
(6) Enter 0

Then you're done.. one material or 2 hundred, the only difference is the time taken to select them in the Hypershade, steps 2 to six are identical for 1 or 200 shaders.

hope it's helpfull
Simon

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# 3 16-12-2006 , 06:34 AM

Moderator
Join Date: Sep 2002

Location: London, UK

Posts: 3,198

Select your shaders in the hypershade and run this:

Code:

{
	string $sSel[] = `ls -sl`;
	string $sItem;
	
	for($sItem in $sSel)
	{
		if(objExists($sItem + ".ambientColorR"))
		{
			setAttr($sItem + ".ambientColorR") 0;
			setAttr($sItem + ".ambientColorG") 0;
			setAttr($sItem + ".ambientColorB") 0;
		}
		if(objExists($sItem + ".translucence"))
		{
			setAttr($sItem + ".translucence") 0;
		}
	}
}

Kari
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