SFML/examples/shader/resources/pixelate.frag

uniform sampler2D texture;
uniform float pixel_threshold;

void main()
{
    float factor = 1.0 / (pixel_threshold + 0.001);
	vec2 pos = floor(gl_TexCoord[0].xy * factor + 0.5) / factor;
	gl_FragColor = texture2D(texture, pos) * gl_Color;	
}
FS#25 - Change sf::PostFx to a more general purpose pixel shader class (sf::Shader) Updated the PostFx sample, renamed to Shader Renamed all the static X::CanUseX() functions to X::IsAvailable() to make the API more consistent Moved .def files from /build/VC200X to /src in CSFML Minors fixes in CSFML git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1258 4e206d99-4929-0410-ac5d-dfc041789085 2009-11-03 17:04:40 +08:00			`uniform sampler2D texture;`
Added support for vertex shaders in sf::Shader Rewrote the Shader example 2011-12-10 20:02:38 +08:00			`uniform float pixel_threshold;`
FS#25 - Change sf::PostFx to a more general purpose pixel shader class (sf::Shader) Updated the PostFx sample, renamed to Shader Renamed all the static X::CanUseX() functions to X::IsAvailable() to make the API more consistent Moved .def files from /build/VC200X to /src in CSFML Minors fixes in CSFML git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1258 4e206d99-4929-0410-ac5d-dfc041789085 2009-11-03 17:04:40 +08:00
			`void main()`
			`{`
Added support for vertex shaders in sf::Shader Rewrote the Shader example 2011-12-10 20:02:38 +08:00			`float factor = 1.0 / (pixel_threshold + 0.001);`
FS#25 - Change sf::PostFx to a more general purpose pixel shader class (sf::Shader) Updated the PostFx sample, renamed to Shader Renamed all the static X::CanUseX() functions to X::IsAvailable() to make the API more consistent Moved .def files from /build/VC200X to /src in CSFML Minors fixes in CSFML git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1258 4e206d99-4929-0410-ac5d-dfc041789085 2009-11-03 17:04:40 +08:00			`vec2 pos = floor(gl_TexCoord[0].xy * factor + 0.5) / factor;`
			`gl_FragColor = texture2D(texture, pos) * gl_Color;`
			`}`