Difference between revisions of "(Image):setMipmapFilter"

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{{newin|[[0.9.0]]|090|type=function}}
 
Sets the mipmap filter mode for an Image.
 
  
[http://en.wikipedia.org/wiki/Mipmap Mipmapping] is useful when drawing an image at a reduced scale. It can improve performance and reduce aliasing issues.
 
 
In [[0.10.0]] and newer, the Image must be [[love.graphics.newImage|created]] with the <code>mipmaps</code> flag enabled for the mipmap filter to have any effect.
 
 
{{notice|In versions prior to [[0.10.0]] it's best to call this method directly after creating the image with [[love.graphics.newImage]], to avoid bugs in certain graphics drivers.}}
 
 
{{notice|Due to hardware restrictions and driver bugs, in versions prior to [[0.10.0]] images that weren't loaded from a [[CompressedData]] must have power-of-two dimensions (64x64, 512x256, etc.) to use mipmaps.}}
 
 
== Function ==
 
=== Synopsis ===
 
<source lang="lua">
 
Image:setMipmapFilter( filtermode, sharpness )
 
</source>
 
=== Arguments ===
 
{{param|FilterMode|filtermode|The filter mode to use in between mipmap levels. "nearest" will often give better performance.}}
 
{{param|number|sharpness (0)|A positive sharpness value makes the image use a more detailed mipmap level when drawing, at the expense of performance. A negative value does the reverse.}}
 
=== Returns ===
 
Nothing.
 
=== Notes ===
 
On mobile devices (Android and iOS), the sharpness parameter is not supported and will do nothing. You can use a custom [[Shader]] instead, and specify the mipmap sharpness in the optional third parameter to the <code>Texel</code> function in the shader (a ''negative'' value makes the image use a more detailed mipmap level.)
 
 
In versions prior to [[0.10.0]], calling this function automatically creates mipmaps for the Image if none exist yet. If the image is [[(Image):isCompressed|compressed]] and its [[CompressedData]] has mipmap data included, it will use that.
 
 
== Function ==
 
Disables mipmap filtering.
 
=== Synopsis ===
 
<source lang="lua">
 
Image:setMipmapFilter( )
 
</source>
 
=== Arguments ===
 
None.
 
=== Returns ===
 
Nothing.
 
 
== See Also ==
 
* [[parent::Image]]
 
* [[(Image):getMipmapFilter|Image:getMipmapFilter]]
 
* [[love.graphics.newImage]]
 
[[Category:Functions]]
 
{{#set:Description=Sets the mipmap filter mode for an Image.}}
 
 
== Other Languages ==
 
{{i18n|(Image):setMipmapFilter}}
 

Latest revision as of 02:56, 5 April 2018