From c6030846f5c1e34048774d60ca4c15e804bee839 Mon Sep 17 00:00:00 2001 From: Travis CI Date: Sat, 14 Mar 2015 20:32:26 +0000 Subject: Gem linux/amd64 built '' for linux/amd64 --- Gem/examples/10.glsl/wave.frag | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 Gem/examples/10.glsl/wave.frag (limited to 'Gem/examples/10.glsl/wave.frag') 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.); +} -- cgit v1.2.1