 | | | soft reflections w/ mr | soft reflections w/ mr 2003-11-24 - By Mark Ainslie
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You can do it that way of course. But for a simpler way to do blurry
reflections you can also connect the DGS material directly to your Maya
shader - few people realize you can do this sort of thing.
1) Get a dgs_material node
2) Set the dgs_material diffuse and specular attributes to black
3) Set a colour to the glossy attribute
4) Set the shiny attribute to any number (low numbers are blurry, high are
sharper)
5) Connect the dgs_material node to the incandescence of the Maya shader you
want to add blurry reflections to
6) Make sure the Maya shader's reflectivity is 0 as to not get double
reflections
or
Repeat Above Steps 1) and 2)
3) Set the glossy attribute to 1
4) Set the shiny attribute to any number (low numbers are blurry, high are
sharper)
5) Connect the dgs_material node to the "reflected color" attribute of the
Maya shader you want to add blurry reflections to
6) Set the Maya shader reflectivity to a number above 0
7) Set the "reflection limit" attribute to 0 under "raytrace options" of the
Maya shader so you don't get double reflections
There's also a shader called "Reflection Utility" on Highend3D that does the
same thing but it's specialized to just doing blurred reflections and isn't
a full featured shader like the dgs_material node.
Hope this helps.
==
Mark Ainslie
Animatorus Tridimentia Canadianum
mark@(protected)
www.gurustudio.com
-- -- Original Message -- --
From: <niko.hirvonen@(protected)>
To: <maya@(protected)>
Sent: Saturday, November 22, 2003 6:11 PM
Subject: Re: soft reflections w/ mr
> Hi Gary,
> Do following to get blurred reflections:
> 1) make a material (Maya's blinn/lambert/phong)
> 2) click the out put connection button to open the attributes for the
> shading group node
> 3) Open the Mental ray section (attribute editor) and drag and drop
> the dgs_shader with middle mouse button (hyper shade window) to
> shading group node -> Mental ray -> Material Shader (attribute editor)
> 4) Click the Supress all maya shaders
> 5) Go to dgs_material1 attributes and change the Glossy (color for
> reflection) and Shiny (brightness of reflection) attributes
> 6) create a light
> 7) connect the Mi Export Mr Light attribute (lightShape node) to
> Lights attribute (dgs_material node)using connection editor
> (highend3d has a script that does this for u2)
> 8) render
>
> I hope this make sense and I didn't miss any step here ...
>
> Niko
> -- ---- ---- ---- ---- -----
>
>
>
> Lainaus Gary Jaeger <gary@(protected)>:
>
> > related to the recent thread about MR books, I really wish alias
> > had
> > better doc on using mr for maya. For instance, I have a blinn which
> > I
> > like everything about, except I want the reflections to be soft.
> > How do
> > I do this with MR? I think it's related to the dgs_material, but I
> > have
> > no idea how to use it. Do you connect some of the dgs attributes to
> > the
> > blinn? or vice versa? can anybody shed some light on this? thanks.
> >
> > . . . . . . . . . . . . . . . . . . . . . . . . .
> > Gary Jaeger // Core Studio
> > + www.corestudio.com +
> >
> >
> >
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