Grain Intensity disabled but still visible
You will notice if you are careful (especially in dark areas) that there is a permanent grain effect active even if you disable Grain Intensity or set it to 0, is it normal ? it does this on every scene, even home made ones.
It's not 'that' noticable but still, you can see it. And I hate that !
If you have too much trouble to see it, in the editor, put the camera in a very low lit place in front of a texture, then go in 'realtime' mode, then hold left mouse button in a part of the UI to pause the realtime rendering (for example in the blank part just at the right of the 'Launch' button) and look carefully, when you will release the left mouse button, the scene will have some grain, and when you hold it again, the grain effect will still be present but freezed.
I'm very courious to know what is the cause of this, I suspect Grain Intensity to be the cause because when i increase the value, the grain effect is exactly the same but much more visible, would be great if it's totally disabled when Grain Intensity is set to 0 or disabled.
Let me know about it and thank you for your time :)
Edit : it is visible in editor and in standalone mode :)
Ok. Found it. It's the tonemapper. With tonemapper disabled the dirty pixels are still there, but not moving.
Interesting facts : with tonemapper disabled (colors are looking 24 bpp like ^^) when I increase or decrease grain intensity, it doesnt change anything, the thing I'm tracking so hard is definitely linked to the tonemapper.
Looks like tonemapper with grain intensity 0 has a dim grain effect, and increasing grain intensity just makes it stronger.
Don't hesitate to do the windows magnifier 1600% trick, it makes it really easy to see. observe difference on image stability with and without the tonemapper, with you will notice a dim grain effect, without, none.
answered Apr 06 '14 at 12:14 AM
Thank you I didn't knew you could update that way !
Just did it and sorry, but it is still visible, do you want me do make a youtube video to show it properly ? I will not do it in less than a week because I am very busy right now, but maybe in a week or 2.
I also noticed that reflections have changed, they look better now, perfectly 'stable' and sweet with temporal AA, but with FXAA or no AA, they look like they were a shader bug. Still latest nvidia drivers and everything.
answered Jun 06 '14 at 03:04 AM
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