From 5c694f159b012d1d94bf15bfe580dec52e4fe797 Mon Sep 17 00:00:00 2001 From: Travis CI Date: Sat, 14 Mar 2015 20:40:49 +0000 Subject: Gem osx/x86_64 built '' for osx/x86_64 --- Gem/examples/10.glsl/texture.frag | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Gem/examples/10.glsl/texture.frag (limited to 'Gem/examples/10.glsl/texture.frag') diff --git a/Gem/examples/10.glsl/texture.frag b/Gem/examples/10.glsl/texture.frag new file mode 100644 index 0000000..aaee824 --- /dev/null +++ b/Gem/examples/10.glsl/texture.frag @@ -0,0 +1,16 @@ +// Cyrille Henry 2007 + +//#extension GL_ARB_texture_rectangle : enable +//uniform sampler2DRect MyTex; +uniform sampler2D MyTex; +uniform float B,C; + +void main (void) +{ + vec4 color = texture2D(MyTex, (gl_TextureMatrix[0] * gl_TexCoord[0]).st); + + color *= B+1.; // brightness + vec4 gray = vec4(dot(color.rgb,vec3(0.2125, 0.7154, 0.0721))); + color = mix(gray, color, C+1.); // contrast + gl_FragColor = color; +} -- cgit v1.2.1