Anyone else noticing that when you have volumetric enabled, it's always on in some form no matter the weather conditions? For example, flying SoCal with OPUS injecting 20 mi viz, if you have fog enabled it's more like 7 miles. When you turn volumetric fog off, the viz matches what ATIS/OPUS is saying. 

You have volumetric fog enabled. At the moment, I don't think it's very realistic with Normal visibility. I would only use it when a metar reports low vis. 

I'm having the same issue, opus gives me fog.. lots of it

 

Go ask OPUS about it on their forums.

I have the same problem with OPUS.  :angry:

Real weather in clear skies comparison between fSX an P3D. Confirmed that is different the fog formula in P3D.

 

So that is it! Nice find...Have allready asked in the opus forum about that to no avail. Dont like the effect as it stands now anyway. The above screens confirm that. Needs a bit more developing time methinks.

 

Thanks, Marcel

remember opus installs a custom cloud texture ( every time you run opus i believe ) to the sim and it could be that custom texture messing with your visabilty, but its best to ask them as i dont know what effect that texture will have on v2.

Beau actually explained what's going on here 

 

The fog distance for full visibility is based on the approximated horizon distance. If we let the terrain but up against the sky, it aliases pretty bad, so it needs to full fade outto the sky color by the time you get to the horizon. Having tall mountains throws off the horizon approximation a bit. We changed our fog equation way back in Prepar3D 1.0. As I recall FSX/ESP used something closer to a linear fade while we modeled ours on an exponential curve because its more physically accurate. Exponential fog has a much steeper ramp up toward the end of the visibility range. So 3/4 of the way through the fog range, we're probably fogging less than FSX but at 90% we're fogging more. Many early adapters who moved from ESP or FSX actually said they preferred our fog over that of FSX because it didn't wash out the scene as much. They may have been referring to the d3d9 fog though. In either case its just a matter of preference and your feedback is appreciated.

 

Beau Hollis
Rendering System Lead - Prepar3D® Team

 

A quick general FS question, from someone enticed back by P3D....I see those screenshots are sort of panoramic, in terms of how wide they are, and I've seen people mention some really odd screen resolutions like 2050x1080

 

Are you running these on multiple monitors or particularly wide monitors?

 

thanks

Multiple. 3 at 5040x1050 res