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View Full Version : [How to?] : Gradient color Bckground


Larsen
08-01-2003, 04:20 PM
It may have been asked on the forum but i didn't find anything about that.

I'll be interested to make a gradient color background like we see on a lot of images ( look to the attached pic ), it gives a nice and proper render, does anyone know some tricks to do that ?

The picture is from "Triple E Vfx"

iC4
08-01-2003, 06:45 PM
well the easiest way would be to render with an alpha channel and add the background later.

but you could also use a background material for your floor and use a texture as image plane (simple lambert material with a ramp assigned to it)

flamedevil
08-01-2003, 11:31 PM
Ok i'll try the 2 methods, thanks :)

Larsen
08-02-2003, 10:21 PM
Ok i understand the principle of removing the alpha channel but i encounter a problem, how can i take shadow and model in my alpha channel ?

thanks

iC4
08-03-2003, 11:00 AM
create a nurbs or poly plane as a floor object. assign a "background shader" to it. set the specular and reflection settings from the background shader to 0. now you should have your shadow but no floor.

now just save as a iff, tiff or tga (they can contain the alpha channel), open it in photoshop and add the gradiant.

Larsen
08-03-2003, 11:13 AM
Fine !
Thanks a lot for your help man !

Gremlin
08-03-2003, 12:29 PM
you could just apply the "background shader" to the NURBS plane, then open up at the attributes for the persp camera, and put a ramp node in the "environment" tab..... thats an all-in-maya solution :D

Larsen
08-03-2003, 12:58 PM
yup, that's what i was trying and it works very well.

thanks again

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