From 96a0a8c916533eb5625816192ed38488f639326d Mon Sep 17 00:00:00 2001 From: Nivesh Rajbhandari Date: Wed, 22 Feb 2012 11:00:20 -0800 Subject: Integrating canvas-2d drawing and WebGL fixes, including adding back WebGL materials. Signed-off-by: Nivesh Rajbhandari --- assets/shaders/Keleidoscope.frag.glsl | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 assets/shaders/Keleidoscope.frag.glsl (limited to 'assets/shaders/Keleidoscope.frag.glsl') diff --git a/assets/shaders/Keleidoscope.frag.glsl b/assets/shaders/Keleidoscope.frag.glsl new file mode 100644 index 00000000..7d1bdb17 --- /dev/null +++ b/assets/shaders/Keleidoscope.frag.glsl @@ -0,0 +1,25 @@ +#ifdef GL_ES +precision highp float; +#endif + +uniform vec2 u_resolution; +uniform float u_time; +uniform sampler2D u_tex0; + +void main(void) +{ + vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy; + vec2 uv; + + float a = atan(p.y,p.x); + float r = sqrt(dot(p,p)); + + uv.x = 7.0*a/3.1416; + uv.y = -u_time+ sin(7.0*r+u_time) + .7*cos(u_time+7.0*a); + + float w = .5+.5*(sin(u_time+7.0*r)+ .7*cos(u_time+7.0*a)); + + vec3 col = texture2D(u_tex0,uv*.5).xyz; + + gl_FragColor = vec4(col*w,1.0); +} \ No newline at end of file -- cgit v1.2.3