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Hybaj wrote:A bit pinish sky very early in the morning is a real phenomenon but not in the other parts of the day

This is a very good paper on a better model of a sky system simulation http://www.cg.cs.tu-bs.de/people/magnor ... /tog05.pdf

I don't know if the pinkish stuff is a bug or just a simulation model that NL used. Also there is quite an integer bug since the sun position does not reflect the actual real position and movement of the sun in real world. It's pretty off

Dusk

Dusk is a very special time of day with unpredictable but often very beautiful lighting. Since the sun is no longer above the horizon the sky itself is the only source of natural light. As a result the light is very soft, with little shadow and contrast and the colours can be very delicate.

After sunset on a clear day there is often a pink area in the eastern sky, a phenomenon called alpenglow, which occurs very often but can surprise those who aren't used to noticing it. Alpenglow can cast a very noticeable pink light onto surfaces that are reflective, such as white houses, sand or water. This pink light is too faint to affect darker surfaces such as foliage though, so often the land can look very dark at this time.

However alpenglow isn't a guaranteed feature of the sky at dusk, at other times the eastern sky is just blue. There is always a yellow or orange glow to the west where the sun is illuminating the sky from below the horizon. The glow from the sun can last for over an hour after sunset, although the colour in the eastern sky is much shorter lived, and changes very fast. It is worth noting that the western sky can also be pink, as well as yellow, orange or red.

From indoors the sky can look a very deep and vivid blue at dusk, especially as it contrasts with the orange tungsten lighting found in household lamps.

In overcast conditions the skylight is always blue (clear skies are needed for the pink light) and it is generally much darker, with night falling much more quickly.

The pink eastern sky is very obvious in this image - you may not notice it very often but this colour is very common in the sky after sunset. Notice how dark non-reflective surfaces such as foliage become, whereas more reflective surfaces such as the cranes sill look quite light.



Alpenglow in the northeast United States

Hybaj wrote:T.Marshall : Read what I wrote again and look also what Boris wrote. Btw I use the Max plugin and with the same lat/lon and date/time I get 2 different outputs. Both of the outputs show wrong sun positions. Non of this was happening in 1.1

Kabe : Btw everybody uses groundplanes

The current physical model actually creates very nice evenings, sunsets and dusks but the pink stuff is just utterly annoying and not really realistic during the most important time of the day. You have to understand that most renderings are made during the day with full sun lightning. The formula for the skydome colours should be corrected somehow to overcome this. Attempts to excuse the pink colour during the day will not be accepted

Maxer wrote:I'm experiencing the same problems with the day sky being to pinkish, this isn't realistic at all V1.1 had a much more realistic sky.

I’m just curious if any of the A-teamers are architects or designers because some of the simplest things that are wrong with this release seem to occur during architectural renderings. In fact it seems many of the features in Maxwell 1.5 weren’t tested at all with this concept in mind which is why I think they are so easily overlooked. It might help to have someone with this skill set on your team.

Maxer wrote:Tyrone,
Here is my test it was done in about 2 minutes and as you can clearly see the sky is pink. My location was chosen from the Location pull down it is USA/Texas/Houston AP GMT Offset is -6, May 27, 2007, Hour 16 Min 31. I'm looking out the window and the sky has no pink in it at all it's BLUE so I'd appreciate it if you didn't try and make it look like I don't know what I'm talking about. Like I said if there were anyone on the A-team who had an architectural background you may have found this bug in the first 10 minutes of testing as I did. Now if I have a setting wrong then I apologize however these are the same settings I've been using since the Beta came out.

Tyrone Marshall wrote: Thanks for your test. What elevation is this taken at? Can you take different shots at different elevations? How tall is this square object, what scale is this scene? Do you have any camera shots of the actual location in real life? More is needed.

Tyrone Marshall wrote:Like how is the sky in 1.5 off, compared to what is it off of? To what extent is it off? Until you provide more information to these kinds of questions, I cannot see more into what you describe as a possible bug, etc.