Help to undertanding a lua script from P3D V4 SDK

[Luis Vargas]

I ask for help to understand how the P3D V4 SKD IRSceneryObject script works. I installed the script, the object appeared in the scenario as expected (Eglin AFB - KVPS), I think its working seems to have something to do with the time of day, but I do not know how produce the expected practical effect.

[BenBaron]

Hi Luis,

I don't understand what exactly you are asking for with the "expected practical effect". Yes, in the example

Code: Select all

local secondsPerDay = 60 * 60 * 24

local percentOfDay = varget("E:LOCAL TIME", "Number") / secondsPerDay

gives you the actual simulator time of day in percent and

Code: Select all

local temperatureScale = 1.0

if percentOfDay < 0.5 then
    
    temperatureScale = minimumScale + ((percentOfDay / 0.5) * (maximumScale - minimumScale))
else
    
    temperatureScale = minimumScale + (((1.0 - percentOfDay) / 0.5) * (maximumScale - minimumScale))
end

sets the temperatureScale depending on the time of day.

With

Code: Select all

varset("T:TemperatureScale", "Number", temperatureScale)

the temperatureScale is then written back to modify the material rendering of the object.

Greets, Benny

[Luis Vargas]

Hi, Benny. Thanks for your feedback.

I understood the question of temperature and time of day, but how do I see it working into the simulator? I used the time preview to vary the time but I did not notice any modification in material rendering. I saw only the shadows moving as the time going to forward / backward. Maybe the shadows had maked a confusion in my eyes. I will see again this time with double of attention.

Best regards.

[WarpD]

Maybe I'm mistaken... but I think you're messing with an object's infrared image.

[Luis Vargas]

Yes, it is about infrared. I am trying to understand how It Works.

[JB3DG]

You need to be in an IR camera mode to see the difference.

[Luis Vargas]

Thanks, JB3DG. Only working in NVG (Night Vision Google).

First two in NVG BLACK HOT with time offset from 00:00 to 12:00.





Last two in NVG WHITE HOT with time offset from 00:00 to 12:00.

[Luis Vargas]

As shown in the screenshots above at 12 o'clock the texture modified by the script for the object under study differs (from light to dark) from the others objects in scenery. At 00:00 o'clock the textures light or dark are equal for all objects.