I would have two question about render passes :
1) Is it possible to render the beauty render passes ( like emission / diffusion / reflection / refraction ) without being premultiplied by the alpha of the object , in order to get the raw pixel in the edge of the alpha to avoid black line in comp ?
2) Is it possible to ouput directly an alpha channel of the render elements in each render passes or do i have to rebuild it on comp ?
My goal is to be able to recompose an image in comp with refractive / reflective object by using only render passes.
It does work with render layer but it is longer to render i would like to know if i can get the same thing only with render passes.
Thanks for your lights