OTOY Forums

So I need a specific color to come through all of my refraction and transparency. All of our projects are rendered on an 80% white endless background.

If I use a big plane as a backplate to get that gray into the refractions and transparency, that's ok, but I'm stuck without being able to alpha out the backplate.

Then if I need floor shadows, I can use a matte plane under the product, however, it will show through the HDRI...even if I have a backplate plane with 80% gray. I've tried using the object tag and checking off camera visibility while leaving shadow visibility on. I've tried two skies, nothing works.

one picture is worth than many words? are you happy to show something for problem?

I hope that pic helps. I forgot to label that you're seeing the HDRI on sky object behind the shadow catcher, instead of the backplate, but I think that's pretty obvious.

In c4d, I had a floor object as a compositing BG and a BG object, all with 80% gray material on them. As well, I switched off GI reception on the floor so I wouldn't get HDR blotches. I can't seem to replicate a similar endless background setup in Octane.

my solution is mixing hdr and some color on ground

Oh nice, yea that should work! Thanks!

RotX and RotY seems to break when not just using an imagetexture. Is that happening for you as well when you do this? I actually can't even seem to rotate the sky manually either.

rodross wrote:RotX and RotY seems to break when not just using an imagetexture. Is that happening for you as well when you do this? I actually can't even seem to rotate the sky manually either.

rotX and rotY is rotation shortcut for internal tranform node. You can create a transform node in imagetexture to do manually

That doesn't seem to work on any axis but the Z, if you're talking about going into the image texture and using the UV Transform. How do I get my XY rotational access back?

Scratch that, I didn't see the T.X and T.Y. Thanks again