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author | Travis CI <zmoelnig@travis-ci.umlaeute.mur.at> | 2015-03-19 20:12:11 +0000 |
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committer | Travis CI <zmoelnig@travis-ci.umlaeute.mur.at> | 2015-03-19 20:12:11 +0000 |
commit | 17dc0febb17888015be1e4ad1ed4b096a4909865 (patch) | |
tree | 0c32573795cf15c79d5e8f792772bf952dab415b /Gem/examples/10.glsl/wave.frag | |
parent | 454d0818e5ad0820771abebefa9758c66068b8d1 (diff) |
Gem 206d71791bc3642e8c5391a4c59c30ba7411fab8 osx/i386
built 'master:206d71791bc3642e8c5391a4c59c30ba7411fab8' for osx/i386
Diffstat (limited to 'Gem/examples/10.glsl/wave.frag')
-rw-r--r-- | Gem/examples/10.glsl/wave.frag | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Gem/examples/10.glsl/wave.frag b/Gem/examples/10.glsl/wave.frag new file mode 100644 index 0000000..d455f88 --- /dev/null +++ b/Gem/examples/10.glsl/wave.frag @@ -0,0 +1,40 @@ +// Cyrille Henry 2007 + +#extension GL_ARB_texture_rectangle : enable + +uniform float K1,K3,D1,K; +uniform sampler2DRect text; + +const float dx = 1.; +const float dy = 1.; + +void main (void) +{ + float x,y; + vec4 C; + vec2 texture1 = gl_TexCoord[0].st ; + + x=texture1.x; + y=texture1.y; + + C = texture2DRect(text, vec2(x, y)); + + vec4 color_cote = texture2DRect(text, vec2(x-dx, y-dy)); + color_cote += texture2DRect(text, vec2(x+dx, y-dy)); + color_cote += texture2DRect(text, vec2(x-dx, y+dy)); + color_cote += texture2DRect(text, vec2(x+dx, y+dy)); + color_cote += texture2DRect(text, vec2(x, y-dy)); + color_cote += texture2DRect(text, vec2(x-dx, y)); + color_cote += texture2DRect(text, vec2(x+dx, y)); + color_cote += texture2DRect(text, vec2(x, y+dy)); + + + float K = K1 * color_cote.r + K3 * 0.5 - (8. * K1 + K3) * C.r; + float D = D1 * (C.r - C.g); + + C.b = C.g; + C.g = C.r; + C.r = (2.* C.g) - C.b + K - D ; + + gl_FragColor = vec4(C.rgb,1.); +} |