Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: alshortyq on 2020-03-17, 08:47:52

Title: [solved] HDRI bg does not appear at PNG TIFF and so on
Post by: alshortyq on 2020-03-17, 08:47:52

Hi!

I have HDRI Environment to light and to background my scene. After rendering process to CXR i see bg image in Corona Image Editor using CXR, but when i do "save all" - i do not see bg image (like blue sky) in saved PNG or TIFF... only transparent bg...  Why? How can i save my final PNG with bg from my HDRI? Do i need to render any additional element like Environmet (may be it has bg image)?

It only appeafs when i save Beauty in simple flat images format (i mean without any alphas or so) like BMP, JPG and so on... Who can i get it in PNG, TIFF?

Tnx.

Title: Re: HDRI bg does not appear at PNG TIFF and so on
Post by: romullus on 2020-03-17, 09:58:30

Hi,
If you don't need transparent background, then simplest solution would be not to save image with alpha channel. Alternatively, you can open the picture in image editing program and remove alpha there, or just paint sky portion of the alpha in white colour.

Title: Re: HDRI bg does not appear at PNG TIFF and so on
Post by: alshortyq on 2020-03-17, 11:19:53

great tnx

Title: Re: HDRI bg does not appear at PNG TIFF and so on
Post by: maru on 2020-03-17, 16:02:05

Most probably the background is still there, but the application you are using to open your image (Photoshop, photo viewer, etc) shows alpha channel as transparency. The solution would be to either save the image without the alpha channel, or to use a different application for opening the file. For example, I am sure Fusion would open the image as expected (with an option to treat alpha as transparency or not), and the EXR-IO plugin for Photoshop also allows you to choose how the image is loaded.

Title: Re: [solved] HDRI bg does not appear at PNG TIFF and so on
Post by: mferster on 2020-03-17, 16:17:31

open your png image in photoshop then go to Layer menu > Layer mask > From Transparency . Then just delete the mask  that it generates; your original background will return.