Environment dome sometimes appears in the rendered image
The default setting for the environment is "dome and scene". Usually, this isn't a problem. But sometimes part of the environment made its way into the rendered image. I had this problem once when background image was reflecting in a mirror. This morning, when I woke up and checked my last rendered image, the wood floor of the room appearing in the portview had been replaced by the dirtfloor of the environment dome. I could fix it by changing the setting to "scene only", by why does this happen?
Edited to add : in fact, I *couldn't* fix it. The background of the image is this product :
https://www.daz3d.com/bachelor-bedroom
If I use it with "dome and scene", the floor and the balcony are replaced by the environment dirtfloor. If I use "scene only", then there's no floor/balcony at all. I supposed first that this product was supposed to come with its own environment that included the floor and balcony, which was somehow replaced by a default environment, which would explain why the floor goes away when I pick "scene only", but I can plainly see the floor amongst the items, examine its surface tab, etc, so it appears like any other element of the scene. So, why would it be replaced by the dome dirtfloor, and why would it dissapear in "scene only" mode?????
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Comments
Sounds like you've got Draw Dome set to ON and want it set to OFF so that it provides lighting but is not itself visible?
Indeed.,I didn't notice this "draw ground ON/OFF" option. But I'm not sure it will solve this particular issue because as I wrote when I edited my post, when I remove the environment ground, there's no ground at all appearing in the render (the floor of the room along with the balcony, although visible in the portview, act as if they were transparent or non-existing in the render).
In fact, it did solve the issue. With the dome on and "draw ground" off, I indeed get the expected floor (although I'd prefer to go without the dome, because it casts shadows I don't want but it seems that's the best/only solution). So, thanks for the trick.
However, I'm still at loss as to why the floor would be replaced by the environment ground when I choose "dome/scene" with draw ground ON, and why there would be no floor at all when I choose "scene only". Why would switching to "scene only" make part of this scene dissapear? Does anybody has an idea?
Iray can be finicky at times. Depending on your settings, Iray will 'cut off' everything at or below ground level. Try setting Ground Position Mode to Auto. That should keep the Iray ground below everything in your scene.
This fixed completely the issue. I didn't even know there was a "ground position mode". I try to learn what purpose serves each command one at at time, but this is going to take years...There are so many menus, and sub-menus, and sub-sub-menus, and I don't have the slighest clue about what they do most of the time.
Thank you all.
I'm glad it worked. Yes, there's always something new to learn. That's what makes it fun for me. I think I learn something new every day in these forums. The best thing to do is bookmark the important stuff so you can find it when you need it. Good luck and happy rendering!