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				Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Thu Mar 07, 2024 12:08 am
				by Mayahi
				Please see image attached. I'm trying to figure out why when I render to PNGs in version 2023, the alpha isn't acting like it used to in 2022. The post pass used to include the environment so the blooms wouldn't be cut out.
			 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Fri Mar 08, 2024 12:29 am
				by Mayahi
				Another example of 22 vs 23, same exact setup. Post pass is including the alpha channel in 23.
			 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Thu Mar 21, 2024 4:15 pm
				by Honom
				I'd love to hear an answer to this as well. I can't seem to get out the post pass without an alpha anymore. I tried activating "include environment" but it doesn't seem to do anything different. I'd really love to have the old effect back 

 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Thu Mar 21, 2024 5:09 pm
				by Mayahi
				Honom wrote:I'd love to hear an answer to this as well. I can't seem to get out the post pass without an alpha anymore. I tried activating "include environment" but it doesn't seem to do anything different. I'd really love to have the old effect back 

 
If it helps -
My workaround was making a custom AOV pass using the compositing nodes. Put a RenderAOV:Post over a Black Solid. See image. That "Post" Node is just an AOV Group node that I renamed. This works just as you'd expect the old post pass to render, just its named "Out1" instead of "Post".
 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Thu Mar 21, 2024 6:19 pm
				by Mayahi
				skientia wrote:Mayahi wrote:Please see image attached. I'm trying to figure out why when I render to PNGs in version 2023, the alpha isn't acting like it used to in 2022. The post pass used to include the environment so the blooms wouldn't be cut out.
Nobody should be exporting as PNG in the first place, a never ending worldwide misconception.
It can be as straight forward as a single right-click EXR export for no problem whatsoever. No workaround, hackery, trick.
 
Yes, thank you, I've seen that article before. The issue is that this workflow used to work in the older version of Octane, and now doesn't. Regardless of PNG's inferiority to EXRs.
 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Fri Mar 22, 2024 9:08 am
				by Honom
				Mayahi wrote:Honom wrote:I'd love to hear an answer to this as well. I can't seem to get out the post pass without an alpha anymore. I tried activating "include environment" but it doesn't seem to do anything different. I'd really love to have the old effect back 

 
If it helps -
My workaround was making a custom AOV pass using the compositing nodes. Put a RenderAOV:Post over a Black Solid. See image. That "Post" Node is just an AOV Group node that I renamed. This works just as you'd expect the old post pass to render, just its named "Out1" instead of "Post".
 
That is AMAZING! Honestly you saved me from a quite a few new gray hairs. This workaround worked perfectly, thank you Mayahi!
 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Fri Mar 22, 2024 6:53 pm
				by Mayahi
				Honom wrote:Mayahi wrote:Honom wrote:I'd love to hear an answer to this as well. I can't seem to get out the post pass without an alpha anymore. I tried activating "include environment" but it doesn't seem to do anything different. I'd really love to have the old effect back 

 
If it helps -
My workaround was making a custom AOV pass using the compositing nodes. Put a RenderAOV:Post over a Black Solid. See image. That "Post" Node is just an AOV Group node that I renamed. This works just as you'd expect the old post pass to render, just its named "Out1" instead of "Post".
 
That is AMAZING! Honestly you saved me from a quite a few new gray hairs. This workaround worked perfectly, thank you Mayahi!
 
Awesome, glad to hear!
 
			
					
				Re: Octane 2023 vs 2022 - Post Pass Alpha Issue
				Posted: Tue Mar 26, 2024 11:29 am
				by boxfx
				skientia wrote:Mayahi wrote:Please see image attached. I'm trying to figure out why when I render to PNGs in version 2023, the alpha isn't acting like it used to in 2022. The post pass used to include the environment so the blooms wouldn't be cut out.
Nobody should be exporting as PNG in the first place, a never ending worldwide misconception.
It can be as straight forward as a single right-click EXR export for no problem whatsoever. No workaround, hackery, trick.
 
Nice to See Elsksa made a new forum account and continues to peddle the bizarre png hatred.