surfaceShader's output Matte Opacity broken in Nightlies

[MartinB]

Hi there,

We've been running into some problems with alpha/matte problems when using maya surface shaders on the latest nightlies.

Pictures should explain it really. There's a plane with a tiff attached with an alpha, the alpha is plugged into the transparency and the matte opacity channel of a surface shader.

Maya


Stable (2.00.04) Renders as expected


Nightly (2.15.01-2011-11-29) Broken Opacity/alpha

[vlado]

Can you post the scene too?

Best regards,
Vlado

[MartinB]

Hi Vlado,

I've attached a test scene with a red circle with alpha. This renders as expected on the 2.00.04 stable (Fedora 12, Maya 2011) but the matte opacity fails on 2.15.01 (2011-11-29)

Cheers
Martin

alphaTestScene.zip