glow and mia material

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  01 January 2013
glow and mia material

hey guys,
i have been trying to get some glow on to a mia material, i have looked in the usual places but theres just no clear and concise instructions on how to do it. layered shaders etc..
anyone have a completely CLEAR method on this ? many thanks
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  01 January 2013
Add a mia_light_material in the advanced color. If you're talking about like glowing fog I'd just do it in post because that's what Maya does anyway.
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  01 January 2013
thanks i will try that way. i have been trying with just adding a lambert into the additional colour slot with the transparencey on full and adjust the glow in that material but it really doesnt work very well aswell as putting a sampler info / ramp into ambient colour to get a "contour" effect around my objects to create a light source for the glow.

i really do prefer to do my glows/fogs/smoke in 3d and then comp them later...

i will try the mib_colour mix to see if that works any better..

on the subject of atmo/fogs etc , heres a network i have been trying and i was wondering if someone had a better way to get this effect(like a misty graveyard)
Attached Images
File Type: jpg smoke_set_up.jpg (56.1 KB, 28 views)
__________________
a whoosh and twinkle is better than a sizzle and splat
---------------------------------------------------
http://shadowship.blogspot.com/
 
  01 January 2013
When using the mia_material_x, you can't link in native Maya shaders like that. You can link in nodes such as file textures or fractals for color, but not entire shaders.

Anything you link to this slot that provides an out color should render fine.
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  01 January 2013
Actually I believe you can hook the output up to the additional color of the mia material and it will add the results together. It works with textures too. I haven't used it much with the standard Maya materials like blinns, but it should still work. I know its common to hook up fast_sss material results without any reflection into an mia material to get the nice mia material reflections, then just turn the weight of the mia material diffuse channel to 0 so you get the diffuse and scattering from the sss but the reflections from the mia material.
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  01 January 2013
Perhaps, but attaching a Maya-native shader is superflous, wasteful, and pointless if you're only going to connect its color output to the Additional Color slot. It's a bad habit to add extra, unnecessary nodes. It confuses and clutters your scene for no reason!
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