Sorry your browser is not supported!

Just as the title sez. Im trying to combine nightvision and motionsickness but i want to learn how

You need to learn HLSL there are only a few folks around here that do shaders and they would have had to learn the language and how the pipeline works.
Some might suggest buying Dark Shader, if your doing shader work I would recommend it, but it doesn't mean you will be able to click and create, its mainly for quick viewing and testing of your shader code as you build it, its a great program for tweaking and getting an idea of how your shader may look in game quickly and highlights errors.
There are a couple of good books out there, bond1 describes it as difficult at first but then you have one of those Aha! moments and it all comes together.

Sometimes you can get away with trial and error.

@king I was bored at work and paging through the forums and came across this.

You could create a nightvision green image hud then write a script to call it up when desired. Then within that script add the posteffect=motionsickness.

I have done it and it works. What I did was create a greenish semitransparent image hud. and added the post effect command and called it all up with the scancodekeypressed condition. Attached the script to the main of a trigger.

Check this out. I used the television post effect to give it that generated image look. The script I used is linked there for download.