water level

manta · April 26th, 2008

Hey MR experts...does anyone know of an equivalent to vray's water level setting in its displacement...I thought I was on to something when I checked "cutout" in the A+D material... but there wasn't any way to adjust it...

Justin Hunt · April 27th, 2008

Cant give you any hints for the displacment, but for cutout, think of cutout as opacity mapping on steroids. In actual fact it acts as a pass through instuction for the rays. Hence works much better than normal opacity mapping.

What does the water level do, is it something to do with the base height of the dispacement?

jhv

manta · April 27th, 2008

Water level is clipping, you specify the depth, and what is below that, is cut. In this case, the black areas, so in this wicker texture , you can see through it...

MasterZap · April 28th, 2008

Quote:

Originally Posted by manta

Water level is clipping, you specify the depth, and what is below that, is cut. In this case, the black areas, so in this wicker texture , you can see through it...

You can do this.

You simply put the displacement map also into the cutout map. What you WANT do to is to threshold the cutout map.

Just do what you did, but with one addition: For the cutout, pipe the displacement map through the "Output" shader, and set a curve with a sharp discontinuity on it. It should look like a stairstep, with everything below a certain level should be 0, and everything about that level should be 1.

/Z

April 27th, 2008	#2 (permalink)
Justin Hunt Veteran Member Join Date: Jan 2005 Location: Brisbane Age: 33 Posts: 1,311 Name: Justin Hunt	Re: water level Cant give you any hints for the displacment, but for cutout, think of cutout as opacity mapping on steroids. In actual fact it acts as a pass through instuction for the rays. Hence works much better than normal opacity mapping. What does the water level do, is it something to do with the base height of the dispacement? jhv

April 27th, 2008	#3 (permalink)
manta Veteran Member Join Date: Dec 2004 Location: Ft. Lauderdale, FL Posts: 1,155 Name: william york	Re: water level Water level is clipping, you specify the depth, and what is below that, is cut. In this case, the black areas, so in this wicker texture , you can see through it... __________________ DESIGN FORWARD http://www.mantastudios.com

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