Physical sky setting

[geo_n]

Is there an easier way to control the direction of the physical sun like in the viewport where we can see where it is pointing at?
Also is there a way to make soft shadows for the physical sky sunlight so we can have white cloudy day and soft shadows? Turning up turbidity softens shadows but also turns the sunlight too yellowish.

[jure]

Is there an easier way to control the direction of the physical sun like in the viewport where we can see where it is pointing at?

Without writing a special script for it, no. You can use any LW light though and turn off kray physical sky sun.

Also is there a way to make soft shadows for the physical sky sunlight so we can have white cloudy day and soft shadows? Turning up turbidity softens shadows but also turns the sunlight too yellowish.

Hmm again, without modifying script no. Here's the basic physky script with which you can play with if you want...

[vpii]

I really like the feature in Maxwell for there Physical sky system. It is very similar to what you have done in Kray just there is a Direction pull down menu. It let you choose track from location (what we have now) and track object. Most of the time in Maxwell I setup sunlight in lightwave as normal then track that light to get same lighting and shadow. It would be great in Kray had this option.

[jure]

I really like the feature in Maxwell for there Physical sky system. It is very similar to what you have done in Kray just there is a Direction pull down menu. It let you choose track from location (what we have now) and track object. Most of the time in Maxwell I setup sunlight in lightwave as normal then track that light to get same lighting and shadow. It would be great in Kray had this option.

Yes we have it on to-do list.

[geo_n]

Thanks jure.
How about a way to animate the time and direction? With dponts sunsky it was possible to animate. WIll this be on the to do list?

[jure]

Thanks jure.
How about a way to animate the time and direction? With dponts sunsky it was possible to animate. WIll this be on the to do list?

Yes.

[geo_n]

Physical sun doesn't bounce gi in interiors?
When using direct light or area light for sun with dpont sunsky, the light has more bounce inside because of photon multiplier maybe.
When using physicalsky it looks very dark and only very sharp light is there but minimal bounce.

[geo_n]

Not sure if its a bug. If I set turbidity to less than 1 or exposure to less than 2.2 in sky panel, kray does wierd things and calculates gi wrong.

[Janusz Biela]

Not sure if its a bug. If I set turbidity to less than 1 or exposure to less than 2.2 in sky panel, kray does wierd things and calculates gi wrong.

Minimum for tubity is 2.0, but I don`t know: this is bug or no. If You wont stronger blue from physky, try full day setup or turn OFF Physky Sun.

[salv8or]

Sorry for droping in like this, but is Krays physical sky north the same as sunspot motion modifier in lightwave, then one can always use that as a reference for where the sun position is. But then I dont know if they match. I guess that Jure can pop in to confirm.

[jure]

Sorry for droping in like this, but is Krays physical sky north the same as sunspot motion modifier in lightwave, then one can always use that as a reference for where the sun position is. But then I dont know if they match. I guess that Jure can pop in to confirm.

Yep, Kray physky was developed so that it matches LW Sunspot exactly.

[bigstick]

Turning up turbidity softens shadows but also turns the sunlight too yellowish.

Can't you apply a tonemapper to the physical sky (desaturate for example) to remove the yellow?

[Janusz Biela]

Turning up turbidity softens shadows but also turns the sunlight too yellowish.

Can't you apply a tonemapper to the physical sky (desaturate for example) to remove the yellow?

We have in the plan update Physky behaviour. Physky is tool which You have to use, becouse this plugin is prepared especially for Kray (better and fast GI, better translusency, etc) We know about some limits in Physky but in this point this tool is the best for enviroment light.

[jure]

Turning up turbidity softens shadows but also turns the sunlight too yellowish.

Can't you apply a tonemapper to the physical sky (desaturate for example) to remove the yellow?

Yes Jim, as you know it's possible via kray script... We will probably add some modifiers to GUI in future updates.

[dballesg_forum]

Sorry for droping in like this, but is Krays physical sky north the same as sunspot motion modifier in lightwave, then one can always use that as a reference for where the sun position is. But then I dont know if they match. I guess that Jure can pop in to confirm.

Yep, Kray physky was developed so that it matches LW Sunspot exactly.

Hi,

I told Jure on Skype I was trying to match the Sun on a xStream Scene with the Simple Exterior scene. Becuase xStream doesn't have a Sun Spot modifier i wrote my own Python Script to do it. It doesn't match Lightwave Sun Spot Modifier (and maybe it's due to a difference on the calculations).

My surprise came when I tried the Kray Physical Sky and the Sun Spot Modifier on the Simple Exterior scene and the don't match. Look to the attached screens.

David