now its working....i was doing some mistake...but i have a question i go through Jeremy Birn pdf of lighting and rendering and in the Transparency maps its written that Black area work as SURFACE and white area is TRANSPARENT but when we use png as transparency map in that case BLACK area is transparent n white Looked as SURFACE....:/
Confused!..:/
When you drag and drop textures into the transparency channels , Maya uses a different attribute to make the connection from texture to transparency channel depending on what type of shader is being used and so the shader will render differently, like the Maya standard shaders such as blinn vs a mia_material.
Other thoughts:
It's most likely because one is a vector attribute while the other is scalar, unlike the color attribute on the blinn and the mia_material's diffuse color, both taking RGB input and thus being vector attributes, so Maya uses the same 'outColor' attribute when connecting texture to shader.
Last edited by GecT; 21-07-2011 at 02:35 PM.
Reason: wrong image