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View Full Version : transparency map on objects casts square shadow??


mypeople
05-05-2009, 05:51 PM
i have an grid with a grass texture/alpha on it, in open gl it looks fine. when i render in maya 8 (at work) it renders a square shadow. i know there is a way to get around this. anyone know what i have to do?

EDIT:

i just turned off GI and the shadows work correctly now. but i need this to work with gi and fg for light baking. any ideas?

MSB
05-05-2009, 08:19 PM
Did you map the alpha map to the photons attribute to your Maya materiel ? That is, did you map the same grass alpha to the transparency channel in the photons attribute ? I think this might help.

mypeople
05-05-2009, 08:24 PM
that sounds like something that would be the problem...how do i go about doing that?

MSB
05-05-2009, 08:25 PM
1) Select your material.
2) Scroll down, you will see photons' attributes.
3) click that button, get attributes from maya.

I believe !

mypeople
05-05-2009, 11:58 PM
nuts, yeah all my materials all have that checked. any other ideas anyone?

Galakgorr
05-06-2009, 12:30 AM
is this a maya material?

if it is, open the raytrace options for the material and set "shadow attenuation" to zero

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05-06-2009, 12:30 AM
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