Bloom Glare Blues...

[rombo]

Hi Everyone.

I've been noticing occasionally the loss of functionality with the bloom/glare controls in corona. I just tried to have a brand new max scene open, importing a model and popping a corona sun with a corona sky in the env slot.

I can't get any flares, no matter how high I set the values for bloom&glare and how low the threshold.
Please see the values on the attachment, I can send a scene for analysis if needed (although this is most likely user error of too many hours in front of the screen :)
Regards, and thanks!

[TomG]

How does it come out with Bloom and / or Glare above 1, and Threshold below 1?

[maru]

Do other controls work fine, for example blur/sharpen? (you should immediately see its effect)
Bloom and glare sometimes takes time to appear. Have you tried waiting a bit longer?
Also, just to make sure: you are not using "highlight clamping" setting in Render Setup > System tab?

[rombo]

I'll give it a shot right now, my machine is fairly fast (1950x) and I tried with values of 100 for each Bloom and Glare, and threshold .001, and no go... :(
Highlight Clamping is at 0.0 (Maru)
Sharpening/Blurring is working fine, I can see the difference between on and off clearly.

[TomG]

What happens if you save the CXR and try adding bloom and glare in the CIE? You could send along the CXR and we can test - or the scene itself too of course, that would be even better :) The private uploader can be used if the scene can't be shared publicly. Thanks!

[rombo]

I'll give it a shot and get back to you in a couple of minutes Tom, thanks!

[rombo]

Voilá, it works!
What can I do to have it on the IR render though, I enjoy this feature so I can adjust stuff interactively, as you can imagine... ...it has always worked fine until 1.7 HF2, where is started behaving oddly...

[TomG]

I'd try Hotfix 3 for one thing - even though the changes there should not affect it :)

Does make me think of one thing - the camera isn't overriding the Bloom and Glare is it? Maybe it is, and the VFB boxes aren't getting greyed out?

[rombo]

It's a perspective camera - it's not the coronacam, good call,  that'd be the 1st thing I'd check too - The renders you are seeing are with HF3 - check the window name on the previous image posts ;)

I will try in another scene to see what is happening...

Ultimately I will find this is still what Ondra calls a User Error! :D :D :D

Edit: On this it works fine...

[rombo]

So what can it be on the other one? it is not the 1st time I've had this happening.

[TomG]

Would probably need the scene itself to explore further. On the HF3, sorry, I noticed you'd said "worked up until HF2" so thought you might still be using that! Does this scene work as expected with HF1 or earlier?

[rombo]

I haven't tried it, it is a new scene. But I've had this happening occasionally (just a couple of times) since I did an upgrade to 1.7

I will PM a dropbox link to you...
Cheers, and thank you.

[maru]

Random idea: open devel/debug rollout (https://coronarenderer.freshdesk.com/support/solutions/articles/12000021288) and check your "use 16-bit floats" option at the very bottom. Is it on or off in the scene where B&G is not working?

[rombo]

No Maru, the Dev/Experimental Stuff was turned off, I just tried turning it on and checking and it is clear. Turning it on won't change the no glare behaviour.

[TomG]

Got the scene, will pass it along to developers. B&G doesn't work for me there either - however, if I import all the objects into a new scene, then it starts working as expected. Was the scene created using an older version of Corona by any chance?