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—gamedev:textureproperties:rim_emissivity_intensity [2020/07/12 11:02] (current) – created dragonlord
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 +{{tag>graphic skin texture emission rim}}
 +<WRAP youarehere>
 +[[:start|Start Page]] >> [[:gamedev|Game Development with the Drag[en]gine]] >> [[gamedev:skinproperties|Skin Texture Properties]] >> [[gamedev:texturepropertylist|Texture Property Database]] >> **rim.emissivity.intensity**
 +</WRAP>
 +
 +====== Skin Texture Property: rim.emissivity.intensity ======
 +
 +Defines the intensity of the rim emissivity.
 +
 +|Excepted Data Source|1 component value|
 +|Data Range|0 or greater|
 +|Default Value|1|
 +|Affected Modules|Graphic|
 +|Linked Properties|[[rim_emissivity|rim.emissivity]]|
 +
 +====== Description ======
 +
 +The **rim.emissivity.intensity** texture property defines the intensity of the rim emissivity.
 +
 +<WRAP center round tip 80%>
 +There is no need to disable dynamically emitted light by switching materials or using **[[gamedev:renderables|renderables]]** using the Drag[en]gine. The **[[gamedev:pbr|Physically Based Rendering]]** uses high defninition range rendering. If your emitted light has an intensity of 1 or less while the object stands in the sun with over 10 intensity all around the emitted light is not going to contribute much to the illumination of the scene which is consistent with the real world. If your materials shines at night just add an emissivity texture and forget about the rest. It will just work.
 +</WRAP>
 +
 +<WRAP center round tip 80%>
 +This texture property is also used for **holographic materials**, **ghosts** or other objects where typically transparency effects are used in other game engines. Transparency effects are though physically wrong for these materials. Furthermore transparency is slower than emission. In the Drag[en]gine you have to use a physically correct way to define these materials. You have to set the **[[gamedev:textureproperties:solidity|solidity]]** texture property to 0. This turns the material fully invisible not rendering it at all while still emitting light.
 +</WRAP>
 +
 +The source is typically a single component value in the range 0 or greater.
 +
 +The default value for this texture property is 0.
 +
 +====== Examples ======
 +
 +<WRAP center 100%>
 +<WRAP center box 450px>
 +{{youtube>6cLQkIhnbNk?medium}}
 +<WRAP centeralign>Example usage of rim.* skin texture properties and building a blue ghost skin.</WRAP>
 +</WRAP>
 +</WRAP>
  
gamedev/textureproperties/rim_emissivity_intensity.txt · Last modified: 2020/07/12 11:02 by dragonlord

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