Flame shader, density gets rendered differently between render view and render to disk

[boyle]

I'm trying to achieve a certain look by putting a flame shader on a fireball sim.

As you can see in the images, the render view/mplay view is different than when rendered to disk.

When rendered to disk the smoke density gets shaded more opaque/brighter.

How can I get the disk render to be equal to what I see in the render view/mplay view?

pyro_render.hip

[Atom]

I'll just boldy state that you can't, mainly because you said 'equal'. The disk render is correct and the viewport render is an approximation. Don't sweat it, just move on to the next step in your work.

 

[Skybar]

Can't remember exactly what the checkbox is called, I think it is 'preview' - but if you have that checked in the render view to get a progressive render it will probably look different. So uncheck that. Also it looks like the render view one is multiplied with the alpha (there is a toggle for that) while the one on disk is not (do it in comp and compare). 

[boyle]

36 minutes ago, Skybar said:

Can't remember exactly what the checkbox is called, I think it is 'preview' - but if you have that checked in the render view to get a progressive render it will probably look different. So uncheck that. Also it looks like the render view one is multiplied with the alpha (there is a toggle for that) while the one on disk is not (do it in comp and compare). 

Toggling "preview" didn't make a difference, and I couldn't find a way to toggle the alpha multiplication (do you know where to do that?)

anyway, thanks to your answer I was able to search for multiplied alpha and found this 

the thing that finally solved it for me was mentioned in that thread: saving as .exr not .tif.

cheers!!