[P34nut]

really there is no need to use the cstrike module for this:

#include <amxmodx>
#include <fun>

#define PLUGIN "Knife Glow"
#define VERSION "1.0"
#define AUTHOR  ""

public plugin_init() {
    register_plugin(PLUGIN, VERSION, AUTHOR);
    
    register_event("CurWeapon", "event_curweapon", "be", "1=1")
}
public event_curweapon(id) {
    switch(read_data(2)) {
        case CSW_KNIFE: {
            set_hudmessage(200, 100, 0, -2.0, 0.20, 0, 6.0, 6.0, 0.5, 0.15, 4)
            show_hudmessage(id,"       Visibility 22%")
            set_user_rendering(id,kRenderFxGlowShell,0,0,0,kRenderTransAlpha,55)
        }
        
        default: {
            set_hudmessage(200, 100, 0, -2.0, 0.20, 0, 6.0, 99999.0, 0.5, 0.15, 4)
            show_hudmessage(id,"       Visibility 100%");
            set_user_rendering(id);
        }
    }
    return PLUGIN_HANDLED
}

[BioI-Iazard]

so which one should i use? lol
im lost now

Just to clear things up...
Basically when knife is out i want invisibilty.
when knife is not out I want it to be normal.

[Drak]

Use P34nut's, just using a switch case is better then "if - else"