Castle Game Engine: X3DNodes: Class TGeneratedTextureHandler

# Class TGeneratedTextureHandler
Description | Hierarchy | Fields | Methods | Properties
## Unit X3DNodes ## Declaration `type TGeneratedTextureHandler = class(TObject)` ## Description Common interface for all VRML/X3D generated texture nodes. ## Hierarchy TObject TGeneratedTextureHandler ## Overview ### Methods
| `constructor Create;`
### Properties
| `property UpdateNeeded: boolean read FUpdateNeeded write FUpdateNeeded default true;`
| `property Update: TSFTextureUpdate read FUpdate;`
## Description ### Methods
| `constructor Create;`
### Properties
| `property UpdateNeeded: boolean read FUpdateNeeded write FUpdateNeeded default true;`
When Update is upAlways, you can check this to know if really something visible changed since last update. If not, then you do not have to update the texture — no point, since it would look exactly like the current one. Scene classes (TCastleSceneCore, TCastleScene, TGLRenderer) take care to set this field. After each actual update of the texture, it's set to `False`. Each time something visible affecting the look of this texture possibly changed, it's set to `True`.
| `property Update: TSFTextureUpdate read FUpdate;`
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