Background

[HarrySeidl]

Hi, sometimes I use a light for my background - I like the usage in VFB. But if my sun is in the same direction like my background, the light-plane will make shadows, so I have no sun in my room. Is it possible to dectivate the light shadow. It's not working with the Vray-Compositing-Tag! Hope you know, what i mean.

Best regards, Harry

[aleksandar.kasabov]

Hello HarrySeidl,

I am not sure I understand what you mean. Would you mind sharing an example scene or a screenshot where the issue is visible? Thank you.

[HarrySeidl]

The background ist a light (rectangle light) - so I like to adjust in the VFB-window! Is it possible without making shadows? Thx

[HarrySeidl]

It is very useful for szenes inside... But it is the same system! If you want a bright background in the window...

[aleksandar.kasabov]

Why do you have the background image as a light? You can add a Background object, then add the texture to the Diffuse channel of a V-Ray Material and apply the material to the Background object. Please check this video.

Alternatively, you could add the background directly in the VFB as a separate layer and then control it separately from the rendered image. Please check this video.

Let me know if that helps.

[HarrySeidl]

No, if you are looking through more than one windows, your second choise doesn't work... I also miss the dome-light - if you check this on, your background doesn't work. Look here... The best control, you have with the light - have tried a lot. The second is my version of background.

[GMTJay]

Does light linking fix that for you?

[GMTJay]

I kind of agree with Harry, though. It looks like a V-ray light occludes other lights when it's visible, but there should be an option to turn that off (like you can when they're invisible):

[HarrySeidl]

I'm so an great idiot... I've tried, what you showed me a lot of times - doesn't work. I have to excluce the background in the sun, not the other way - I have excludet the sun in the background! Now it works yeaaaaah... Thanks to all!!!