Visualization Insider - Rendering with Photoshop Masking

Jeff Mottle · October 13th, 2006

One of the most difficult things to get right in any 3D visualization is the client's choice of colors. Clients often don't know what colors they want to use on their projects and as a result you are often forced into a long ordeal of walking them through the process of color selection.

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frank1331 · October 18th, 2006

Great technique, but how exactly to you render from 3d Max to get a single alpha channel to work with in Photoshop.

Step by Step if you could.

Thanks

ShaunDon · October 18th, 2006

What I (and a lot of artists, from what I gather) do is to make a copy of your scene file and apply a 0,0,0 (black) material to all objects, then apply a 255,255,255 (white) material that is 100% self illuminated to the objects you want a mask for. Render that, save it as a JPEG at 100% quality, and then copy and paste it into a new channel or selection in Photoshop.

A more efficient way of doing it would be to do the same exact thing, but apply multiple illuminated colors (red, green, blue, etc) to different sets of objects so you can get multiple mattes out of one render pass. Then you can select by color in Photoshop and save your masks. Trouble is when the colors are side-by-side, the aliasing gets messy, so I've never done it that way.

Shaun

Ernest Burden · October 18th, 2006

Quote:

Originally Posted by ShaunDon

A more efficient way of doing it would be to do the same exact thing, but apply multiple illuminated colors (red, green, blue, etc) to different sets of objects so you can get multiple mattes out of one render pass. Then you can select by color in Photoshop and save your masks. Trouble is when the colors are side-by-side, the aliasing gets messy, so I've never done it that way.

You turn OFF AA for the materials map pass.

There was a thread about this recently, a guy used one of my images as an example. I'll see if I can find it.

Ernest Burden · October 18th, 2006

Quote:

Originally Posted by Ernest Burden

There was a thread about this recently

Ah, here:

http://www.cgarchitect.com/vb/18971-...ss-urgent.html

vikkramg · November 9th, 2006

hi,

i didn't found the tutorial link except for the sample_mask.zip. where is the tutorial link. plz give me. i need it urgently

vikkram

October 13th, 2006	#1 (permalink)
Jeff Mottle President/Founder Join Date: Jul 2001 Location: Calgary, Alberta, Canada Age: 33 Posts: 5,167 Name: Jeff Mottle	Visualization Insider - Rendering with Photoshop Masking One of the most difficult things to get right in any 3D visualization is the client's choice of colors. Clients often don't know what colors they want to use on their projects and as a result you are often forced into a long ordeal of walking them through the process of color selection. Read More...

October 18th, 2006	#2 (permalink)
frank1331 Senior Member Join Date: Nov 2004 Location: Florida Age: 41 Posts: 177 Name: Frank Richarz	Re: Visualization Insider - Rendering with Photoshop Masking Great technique, but how exactly to you render from 3d Max to get a single alpha channel to work with in Photoshop. Step by Step if you could. Thanks

October 18th, 2006	#3 (permalink)
ShaunDon Senior Member Join Date: Jul 2003 Location: Portsmouth, NH Age: 26 Posts: 360 Name: Shaun Donnelly	Re: Visualization Insider - Rendering with Photoshop Masking What I (and a lot of artists, from what I gather) do is to make a copy of your scene file and apply a 0,0,0 (black) material to all objects, then apply a 255,255,255 (white) material that is 100% self illuminated to the objects you want a mask for. Render that, save it as a JPEG at 100% quality, and then copy and paste it into a new channel or selection in Photoshop. A more efficient way of doing it would be to do the same exact thing, but apply multiple illuminated colors (red, green, blue, etc) to different sets of objects so you can get multiple mattes out of one render pass. Then you can select by color in Photoshop and save your masks. Trouble is when the colors are side-by-side, the aliasing gets messy, so I've never done it that way. Shaun __________________ Shaun Donnelly TANGRAM 3DS

November 9th, 2006	#6 (permalink)
vikkramg Junior Member Join Date: Jun 2006 Location: hyderabad Posts: 4 Name: vikkram gotluru	Re: Visualization Insider - Rendering with Photoshop Masking hi, i didn't found the tutorial link except for the sample_mask.zip. where is the tutorial link. plz give me. i need it urgently vikkram

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