https://forums.autodesk.com/t5/maya-shading-lighting-and/mental-ray-shadow-pass/m-p/8360918#M12166 <P>Hi, had a question about the shadow pass in mental ray, I'm attempting to have a shadow pass for my object that just shows up in the alpha channel to composite inside Nuke. I'm having trouble creating a render pass that will do this.</P><P>&nbsp;</P><P>Right now I'm applying a mip_matteshadow onto my ground plane to have it not be visible, but this still isn't having my shadow show up correctly on the ground plane. I have selected Raw Shadow in my Render settings tab and set the Raw Shadow to 4 channels. The Beauty Pass also isn't showing a shadow in the alpha. The alpha for my Raw shadow is completely black.&nbsp;</P><P>&nbsp;</P><P>If anyone has a solution or a tutorial that could help me out that'd be greatly appreciated! I saw that this question was asked before too, but after going through several tutorials and threads I couldn't figure it out, apologies if it's been answered a lot! Thanks!</P> Fri, 26 Oct 2018 05:37:20 GMT Anonymous 2018-10-26T05:37:20Z https://forums.autodesk.com/t5/maya-shading-lighting-and/mental-ray-shadow-pass/m-p/8360918#M12166 <P>Hi, had a question about the shadow pass in mental ray, I'm attempting to have a shadow pass for my object that just shows up in the alpha channel to composite inside Nuke. I'm having trouble creating a render pass that will do this.</P><P>&nbsp;</P><P>Right now I'm applying a mip_matteshadow onto my ground plane to have it not be visible, but this still isn't having my shadow show up correctly on the ground plane. I have selected Raw Shadow in my Render settings tab and set the Raw Shadow to 4 channels. The Beauty Pass also isn't showing a shadow in the alpha. The alpha for my Raw shadow is completely black.&nbsp;</P><P>&nbsp;</P><P>If anyone has a solution or a tutorial that could help me out that'd be greatly appreciated! I saw that this question was asked before too, but after going through several tutorials and threads I couldn't figure it out, apologies if it's been answered a lot! Thanks!</P> Fri, 26 Oct 2018 05:37:20 GMT https://forums.autodesk.com/t5/maya-shading-lighting-and/mental-ray-shadow-pass/m-p/8360918#M12166 Anonymous 2018-10-26T05:37:20Z