SkyDome day/night problem

[LunaRebirth]

Hello!
I've done a TON of research on this, but could never get it working properly!

I decided to use fog to my advantage on my dome.

Here's my code:

Code: Select all

driver->setFog(video::SColor(0,0,0,0), video::EFT_FOG_LINEAR, 500, 600+(server.lightR*1000), 3.f, true, false);

server.lightR is determined by the server time. It increases by 0.001 during the night time, and decreased 0.001 during the day time.

This code works!
However, shading the skydome with the darkness leaves a line on the skydome by vertex, and then lightens outward. This is a weird graphical problem, because moving your screen looks like there is a dark line wherever your camera is looking and it diminishes light.
Let me show you what I mean:


Thanks in advanced!!!!
_Luna

[hendu]

Fixed function fog is per-vertex. Write a shader if you need per-pixel.

[LunaRebirth]

How do you suggest I do this?
I looked at the per-pixel lighting tutorial, but found nothing useful for this situation.
But they're also using fog. Am I missing something?

[hendu]

There are many GLSL fog tutorials online. The irr example 11 is not useful in this, as it uses a built-in shader with limitations.

[Nadro]

You can check fixed function emulation shaders (media/Shaders) in ogl-es branch, where fog calculation is included.

[LunaRebirth]

Thank you, I'll check it out!