Environment background effect rendering brightness

[Anonymous]

Hi Please help sos 🙂

Usually when I'm rendering I'm using vray plane as a background. when I've changed the background to an jpg image in the environment, the rendering became very bright. Can I neutralize the background from effecting the render or is there any other solution to fix it?

I can't fix it by reduce the lights in the scene because the rendering is too bright even with almost no light at all.

Thank you !

Keren

[miledrizk]

Hi,

For the background, I suggest you add a Plane geometry, make it perpendicular to the camera view,

Apply a VrayLightMTL to it, and add your JPG as a diffuse color.

From now on you can control the brightness of the Map from the parameter next to the Map,

It's 1 by default.

If the map is close to your scene, and you feel it's affecting its brightness, you can select the Plane,

Right-Click and choose V-Ray properties, there you can decrease the value of Generate GI.

[RobH2 · Accepted solution]

For this technique, you can eliminate having to set a plane behind everything that lines up to your view or camera. I used to do what you are doing with a plane object but found an easier way in files where I don't need to have a plane back there. 

Try this, maximize your camera viewport. Hit 'Ctrl+b' to open the 'Viewport Configuration' window. I've attached mine for the file I attached. Look for 'Use Files:' and choose a file and aspect options. Hit 'OK'.

Open 'Render Setup' and in the 'Environment' tab turn on 'GI environment' and set the color to black or turn the value to '0.0' , either or, or both. Either one should work. 

Back in Max, turn off the Dome light (in the sample file I sent or turn off your own lights) and render. You'll see that the background image has no effect on the lighting. You should see that your objects are black, like a mask because they have no light but your background image is clearly visible. 

I use Max 2019 and you didn't say what you have. The attached file is set back to Max 2016 and should open fine in that version or newer. 

[jon.bell]

Hi @Anonymous,

I'm just reviving this thread to see if the suggestions posted above helped, and if you had any other questions.

In addition, for V-Ray-related issues, have you also pinged The Chaos Group's tech support for help?

Please let us know, and we hope to hear from you soon!