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authorPushkar Joshi2012-02-24 12:08:49 -0800
committerPushkar Joshi2012-02-24 12:08:49 -0800
commit03ca7a5ed13c25faaa9100bb666e062fd15335e6 (patch)
treec51112223ceb9121cd595a60335eb2795215590f /assets/shaders/SquareTunnel.frag.glsl
parentfcb12cc09eb3cd3b42bd215877ba18f449275b75 (diff)
parent053fc63a2950c7a5ee4ebf98033b64d474a3c46e (diff)
downloadninja-03ca7a5ed13c25faaa9100bb666e062fd15335e6.tar.gz
Merge branch 'pentool' into brushtool
Conflicts: imports/codemirror/mode/scheme/scheme.js js/tools/BrushTool.js
Diffstat (limited to 'assets/shaders/SquareTunnel.frag.glsl')
-rw-r--r--assets/shaders/SquareTunnel.frag.glsl21
1 files changed, 21 insertions, 0 deletions
diff --git a/assets/shaders/SquareTunnel.frag.glsl b/assets/shaders/SquareTunnel.frag.glsl
new file mode 100644
index 00000000..51ef7b7c
--- /dev/null
+++ b/assets/shaders/SquareTunnel.frag.glsl
@@ -0,0 +1,21 @@
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 r = pow( pow(p.x*p.x,16.0) + pow(p.y*p.y,16.0), 1.0/32.0 );
15 uv.x = .5*u_time + 0.5/r;
16 uv.y = 1.0*atan(p.y,p.x)/3.1416;
17
18 vec3 col = texture2D(u_tex0,uv).xyz;
19
20 gl_FragColor = vec4(col*r*r*r,1.0);
21}