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authorValerio Virgillito2012-02-23 17:05:43 -0800
committerValerio Virgillito2012-02-23 17:05:43 -0800
commitafc53c6f553c97ab778154154aa2b7a146cb5fef (patch)
tree66b5ec886a49894feda44ccf8b5233ef39a46536 /assets/shaders/Twist.frag.glsl
parent8974ecd564563a991ff96f9cb6d47da172174242 (diff)
parentdb2fd02a1b0e909bb536fa63cefd2144f4642ead (diff)
downloadninja-afc53c6f553c97ab778154154aa2b7a146cb5fef.tar.gz
Merge branch 'refs/heads/master' into local-storage-version
Diffstat (limited to 'assets/shaders/Twist.frag.glsl')
-rw-r--r--assets/shaders/Twist.frag.glsl23
1 files changed, 23 insertions, 0 deletions
diff --git a/assets/shaders/Twist.frag.glsl b/assets/shaders/Twist.frag.glsl
new file mode 100644
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+++ b/assets/shaders/Twist.frag.glsl
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1#ifdef GL_ES
2precision highp float;
3#endif
4
5uniform vec2 u_resolution;
6uniform float u_time;
7uniform sampler2D u_tex0;
8
9void main(void)
10{
11 vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy;
12 vec2 uv;
13
14 float a = atan(p.y,p.x);
15 float r = sqrt(dot(p,p));
16
17 uv.x = r - .25*u_time;
18 uv.y = cos(a*5.0 + 2.0*sin(u_time+7.0*r)) ;
19
20 vec3 col = (.5+.5*uv.y)*texture2D(u_tex0,uv).xyz;
21
22 gl_FragColor = vec4(col,1.0);
23} \ No newline at end of file