Go to
http://wiki.frictionalgames.com/hpl2/amn...en_effects
Look under screen effects.
Mess around with them. Learn what they do.
I guess i would use:
FadeImageTrailTo(float afAmount, float afSpeed);
afAmount - intensity (default: 0)
afSpeed - time in seconds until full effect
FadeRadialBlurTo(float afSize, float afSpeed);
afSize - intensity (default: 0)
afSpeed - time in seconds until full effect
FadePlayerRollTo(float afX, float afSpeedMul, float afMaxSpeed);
afX - angle of rotation of head, positive being counter-clockwise
afSpeedMul - speed (possibly acceleration) multiplier of the rotation (default 1, which is really slow)
afMaxSpeed - maximum speed of rotation
Use this ^ to make the player's head tilt a bit (according to how much you put in it)
Trying is the first step to success.