So I took a pass at it and haven't really figured it out, but I wanted to share a few discoveries anyway. I'm attempting this in Arnold since that is built into Maya these days. First thing you need to do is set the attributes of the meshes you want to use opacity, under the arnold section, uncheck opaque. If opaque is…
Thank you m4dcow, it's very helpful for me, so i keep going on your discoveries to solve the Normal and the Backface problem. - For the Normal : We need to render with a Ortho Camera. * Face Down the camera to match the World Space Axis with a plane's tangent normal (Camera set to Ortho) Then we change the Shade Mode in…
Yeah, it's like archeological excavations. There should a special discipline : software studies , to dig into code "cultural layers" of Autodesk soft :)
Looks like Arnold has another problem although . Its baking rays go indefinitely and looks like there is no way to limit it as in Clarisse or Modo. Gpu mode seems not working either in RTT baking. I get " UV camera is unsupported on GPU". Or maybe it's my old GF980ti
Yeah, actually it works in Max too with two sided material. Thanks for pointing it out for me. I just got lost in those AO materials and channels shuffles. In Max it's just Utility node that gives you world normal colors initially then Matte material instead of AO one where you could input opacity alphas and finally same…