Shadow catching

[billyjoe2014]

Hi all, I was trying to replicate the shadow catcher feature of Poser and Daz Studio in Octane. I don't mean a separate render pass for compositing, I mean the ability to make a transparent object receive shadowing from other objects in a scene, and display this in the final render itself. Found something in the manual but with no luck, looks like its used for compositing outside of Octane. Is this at all clear? Noob here

[ThetaGraphics]

Set the shadow catcher object to diffuse and enable "matte".

[face_off]

Details on this are in the manual at http://render.otoy.com/manuals/Poser/?page_id=268.

Paul

[billyjoe2014]

Hi, guys, thanks for the responses but that's exactly what I didn't want, I did read the manual. Maybe I'm missing something. Here's the resulting Octane render in a test following the manual as I could see it.

[billyjoe2014]

Ok, here's a Poser render doing what Poser can do, which is what I wanted all along....

[billyjoe2014]

Here's a little elaboration adding an additional prop to make the can sit and overlap the small stone step...

[billyjoe2014]

Here's octane again....

[face_off]

I've never used "matte" enabled with an Envirosphere - can cannot comment of that specific situation. The preferred way to handle this is to delete the envirosphere and sun props, and use a HDR map in the Octane "environment" texture. If using HDR or EXR (as opposed to jpg/png), set the gamma to 1, power to 1, and it should work well. You may or may not be able to use the envirosphere texturemap as the environment map - my guess is "not", unless the envirosphere geometry is UV mapped to a lat/long HDR map (which is unlikely).

Paul