How to save to .png render from Vray frame buffer with the white background

V-Ray V-Ray for 3ds Max General
1

Hello,

How to save to .png render from Vray frame buffer with the white background? The command

vfbControl #saveimage imageFilePath

saves only with black, but I have in VFB image with the white bg. Maybe there is some trick to put render to max render window and then save to file?

I use Vray 5 1.3 . And I need to save render result for VFB via maxscript only. I open VFB window via Render Setup (F10) → V-Ray → IPR options → Start IPR. Then I render image and after this I need to press a button in a custom dialog form and save render result to .png with a white bg. As I wrote I use vfbControl #saveimage imageFilePath command but it’s ignore Alpha settings of the .png settings ( pngio.setAlpha false ) and save with Alpha and black bg. If I save manually I have save dialog with the Alpha channel checked off and render output is with the right white bg. It seems that VBF via script has own png save settings.

2

Hello,

You are right that when saving with script the frame buffer has separate settings. Unfortunately there’s currently no way to control them in the script.
Side question - if you don’t need the alpha why don’t you use some file format without alpha - like jpeg ?

Best regards,
Yavor

3

Hi Yavor,

thank you for your reply. I found that for the our workflow is better to use .png rather then .jpg. But your answer is enough for me, so thank you.