DxSetTexturePixels: Difference between revisions

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==Syntax==  
==Syntax==  
<syntaxhighlight lang="lua">
<syntaxhighlight lang="lua">
bool dxSetTexturePixels( element texture, string pixels [, int x = 0, int y = 0, int width, int height ] )
bool dxSetTexturePixels( [ int surfaceIndex, ] element texture, string pixels [, int x = 0, int y = 0, int width, int height ] )
</syntaxhighlight>  
</syntaxhighlight>  


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===Optional Arguments===
===Optional Arguments===
{{New feature/item|4.0130|1.3|4021|
*'''surfaceIndex:''' Desired slice to set if the texture is a volume texture, or desired face to set if the texture is a cube map. <nowiki>(Cube map faces: 0=+X 1=-X 2=+Y 3=-Y 4=+Z 5=-Z)</nowiki>
}}
By default the pixels are set starting at the top left corner of the texture. To set a different region, define a rectangular area using all four of these optional arguments:
By default the pixels are set starting at the top left corner of the texture. To set a different region, define a rectangular area using all four of these optional arguments:
*'''x:''' Rectangle left position
*'''x:''' Rectangle left position
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==Requirements==
==Requirements==
{{Requirements|n/a|1.3|}}
{{Requirements|n/a|1.3|}}
==Changelog==
{{ChangelogHeader}}
{{ChangelogItem|1.3.0-9.04021|Added surfaceIndex argument}}


==See Also==
==See Also==
{{Drawing_functions}}
{{Drawing_functions}}

Revision as of 02:57, 22 April 2012

This function sets the pixels of a texture element. It can be used with a standard texture, render target or screen source. Only 'plain' format pixels please.


Performance note:

  • This function is slow and not something you want to be doing once a frame.
  • It is very slow when setting pixels to a render target or screen source.
  • And is very slow indeed if the texture format is not 'argb'

Syntax

bool dxSetTexturePixels( [ int surfaceIndex, ] element texture, string pixels [, int x = 0, int y = 0, int width, int height ] )

Required Arguments

  • texture : The texture element to set the pixels of
  • pixels : The 'plain' format pixels to use

Optional Arguments

ADDED/UPDATED IN VERSION 1.3 r4021:
  • surfaceIndex: Desired slice to set if the texture is a volume texture, or desired face to set if the texture is a cube map. (Cube map faces: 0=+X 1=-X 2=+Y 3=-Y 4=+Z 5=-Z)

By default the pixels are set starting at the top left corner of the texture. To set a different region, define a rectangular area using all four of these optional arguments:

  • x: Rectangle left position
  • y: Rectangle top position
  • width: Rectangle width
  • height : Rectangle height

Returns

Returns a string if successful, false if invalid arguments were passed to the function.

Example

TODO

Requirements

This template will be deleted.

Changelog

Version Description
1.3.0-9.04021 Added surfaceIndex argument

See Also