I am working on exr 16bits and I normally use 3d max 2017 + vray 3.40 + Photoshop latest version
I noticed that when I save the image as a vray raw image file and I do not add the denoiser render element then it only saves the layers that i added manually to my render elements and layers like alpga has the edges smooth like you would expect, however if I add the denoiser render element to my render elements then it saves all the layers to the render elements even tough I did not add them manually and another issue I noticed is that layers like alpha get the edges pixelated
It is normal for additional render elements to be saved (in case you want to re-denoise with different settings), but I have not seen the alpha issue so far. Will check it out.
By adding more render elements to the exr will increase the file size so I am wondering if there is a way to just save the elements that you want including the denoiser as well?
what I noticed is that the issue with the alpha layer only happens if I save exr. If I save it trough the option of separate render channel and I save it as a tiff for instance the alpha layer will be fine
psd-manager 4.0 has an option for that (affects only PSD/PSB).
Have you looked at the EXR file in any another application/viewer? Maybe this is actually just the result of a pre-multiplied to straight alpha conversion within your Photoshop EXR import plugin? Just an idea.
Edit: EXR alpha rendered from your 2017 scene looks fine to me using 3ds max image viewer (V-Ray 3.50.01 Beta).
Thanks for the scene, according to my tests everything is fine with the alpha so there might be a chance for something suspicious in Photoshop.
Here is how the alpha channel looks like when viewer trough PDPlayer:
Here is the outputted .exr file: http://ftp.chaosgroup.com/support/scenes/test.0000.exr
Would it be possible to also send us the .exr file saved from your environment so we could check it’s alpha channel with other software like PDPLayer and Nuke?
Thank you very much in advance.
I think you guys are correct, there is something going on in Photoshop however you can download the exr from the same link a previously provided
As a detail, I checked with after effects with the proexr free pluging Index of /ProEXR and it seems to be fine but I have not had much time to check in deep but I will in the next day o two
For Photoshop I am using the exr free plugin that came out few months ago called exr-IO http://www.exr-io.com
after effects does not show the alpha layer but It applies it to all the layers and even I tell AE to interpretate the exr as a straight still does not appear the alpha layer
I uploaded all the files so someone can help here because i am struggling with the exr business
For Photoshop for some reason does not matter what plugin i use if it is exr io or proexr from fnord i have in both an alpha layer but pixelated
On the other hand, I tried with arionfx and it works great the alpha comes the way it should be
please use the same link i already provided if you want to check it out
Well I found the solution for both Photoshop and after effects both with the plugin from Index of /ProEXR
Photoshop: when you open the exr file on Photoshop hold shift and a message will appear and then chose alpha as separate layer then you will get a clean alpha layer
After effects:
load the exr file as a alpha ignore
go to file/create pro exr layer comp
grag your rgb composition and apply extractorR as the image attached and you get the alpha
I missed that, the alpha in your .exr file also looks correct so as you already confirmed this is a Photoshop issue and the file is written with proper alpha channel.
Hi.
I’m using 3.5 and would like to ‘omit’ the denoiser elements from the EXR - can I do this, or is it future versions beyond 3.5 that will allow this?
Not yet but it is planed for future versions. As for now the best option would be to use Separate Render Channels output, it will save the files separately but it won’t include Denoiser elements.
I don’t think this is the same case. There is no V-Ray issue here actually, Photoshop for some reason do not read the alpha properly.
Hi GlassC
Photoshop EXR can not load render Elements, and can’t do actually anything. It opens the file as PNG or any other bitmap. The other data saved in EXR (like Object_IDs, Groups/layers, Stereo, etc) are ignored, it loads only the pixel information from the Image and makes it single layer picture.
Exr-IO is a solution (as far as PS archirecture allows it), to have layered Image data workflow as you do it in Fusion/Nuke. It has the latest ILM EXR2 Support, and the most advanced saver and loader Options (mostly for the guys working with sceintific image processin quality, which must be exact).
Vray has, my opition, one of the best render element Exports in EXR, we were all time measuring our work according to Vray outputs.
