[Samuel Perea]

“I had exactly the same problem and here’s how I solved it:
Besides your regular passes also export Multi-Pass for Illumination and Global Illumination. You don’t need to export Multi-Pass for Shadow because you’ll get empty channel anyway. Now throw everything in After Effects and set your Illumination layer mode to “Overlay” and put your Global Illumination layer underneath your Illumination layer. Then just turn TrackMate to “Luma Inverted” on your Global Illumination layer and bam! you got yourself transparent shadows from HDR light source ???? Now of course add your RGB pass which you’ll need to mask-out using an Object Buffer but that you probably know already. Here’s a link to a pic of my AE timeline where those 2 important layers/passes are marked green.

Hi there, this def worked. However I am getting an issue from it. I rendered out as png and brought into Photoshop to composite further. looks wonderful, until I export a png out of Photoshop. I open that png in a new Photoshop tab and put a black background on it, the shadows are white! any help is appreciated!

[Samuel Perea]

Did you ever figure this out??