[Kinsi]

Turns out that wasnt actually the solution to the problem, or maybe i just messed up:

http://steamcommunity.com/sharedfile.../?id=241836714

the line is always facing into that direction, no matter how the chair is roated

PHP Code:

        decl Float:Origin[3];
        decl Float:Rotation_[3];
        decl Float:Rotation[3];
        
        GetEntPropVector(chair, Prop_Send, "m_vecOrigin", Origin);
        GetEntPropVector(chair, Prop_Send, "m_angRotation", Rotation_);
        
        GetAngleVectors(Rotation_, NULL_VECTOR, NULL_VECTOR, Rotation);
        
        Rotation[0] *= -1.0;
        Rotation[1] *= -1.0;
        Rotation[2] *= -1.0;
        
        new Handle:trace = TR_TraceRayFilterEx(Origin, Rotation, MASK_SOLID_BRUSHONLY, RayType_Infinite, TraceEntityFilter);
        
        if(trace != INVALID_HANDLE && TR_DidHit(trace))
        {
            decl Float:pos[3];
            TR_GetEndPosition(pos, trace);
            new Float:Distance = GetVectorDistance(Origin, pos);
            
            new Color[4] = {255, 0, 0, 200};
            
            if(Distance >= 19.65 && Distance <= 19.8)
            {
                Color = {0, 255, 0, 200};
            }
            
            TE_SetupBeamPoints(Origin, pos, BeamModelIndex, 0, 0, 0, 0.5, 6.0, 6.0, 1, 0.0, Color, 10);
            TE_SendToAll();
            
            PrintToChatAll("Trace did hit! Ang: %.2f %.2f %.2f | Dist: %.2f", Rotation[0], Rotation[1], Rotation[2], Distance);
        }
        else
        {
            PrintToChatAll("Trace didnt hit");
        }
        CleanCloseHandle(trace); 


Edit: ignore me, forgot to convert the vector back to angles. Thank you very much mate!