Editing Ogre:CharacterCodex:Combat:Modifiers (section)

===Concealment===
Concealment includes all circumstances in which nothing physically blocks a blow or shot, but something interferes with an attacker’s accuracy.

====Degree of Concealment====
Concealment is subjectively measured as to how well concealed the defender is. Examples of what might qualify as concealment of various degrees are given below. Concealment always depends on the point of view of the attacker. 

'''One-tenth:''' Watery eyes.

'''One-quarter:''' Light fog, light foliage.

'''One-half:''' Shadows, dense fog at 5 ft.

'''Three-quarters:'''  Dense foliage.

'''Nine-tenths:''' Near total darkness.

'''Total:''' Attacker blind, total darkness, smoke grenade, dense fog at 10 ft.

'''Skill Penalty:''' If you suffer concealment penalty because your vision is not good enough you also received penalty to your action that require vision : most skill that required Strength or Dexterity. When you try to attack an opponent with Concealment, you suffer a concealment penalty to your attack roll. Concealment penalties are not cumulative.

'''Concealment Hide Bonus:''' You need concealment to hide and the more you have, the easier it is to hide.

'''Movement penalty:''' If you suffer concealment penalty because your vision is not good enough, your movement is also hindered. Lost of vision for movement is less dramatic than other activity because you can use your other sense to detect your environment. Your movement penalty is less drastic than for other skill.

{| border="1" cellpadding="5" cellspacing="0" style="text-align: left"
!Concealment
!Skill Penalty
!Hide Modifier
!Move Penalty
|-
| One-tenth
| -1
| -8
| 0
|-
| One-quarter 
| -2
| -4
| -1
|-
| One-half 
| -4
| 0
| -2
|-
| Three-quarters
| -8
| +4
| -4
|-
| Nine-tenths 
| -16
| +8
| -6
|-
| Total 
| -32
| +16
| -8
|}

====Concealment in combat====

'''Reduce efficiency:''' Unlike cover, concealment is less efficient when someone is able to hit you. For each attack that successfully hit you, you lose one degree of concealment because opponents know exactly where you are. The same thing happen when you strike successfully an opponent, you tell your position reducing your concealment. If you move to a different location, you regain automatically your original concealment. 

====Vision and concealment====

'''Blindness and Invisibility:''' If the skill penalty from a Concealment is higher than your passive Spot resistance, your are actually considered blinded or your target is considered invisible. In both case you are considered as No Defense agaisnt him.