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/Deform.frag.glsl | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 assets/shaders/Deform.frag.glsl (limited to 'assets/shaders/Deform.frag.glsl') diff --git a/assets/shaders/Deform.frag.glsl b/assets/shaders/Deform.frag.glsl new file mode 100644 index 00000000..1dbe45a0 --- /dev/null +++ b/assets/shaders/Deform.frag.glsl @@ -0,0 +1,29 @@ +#ifdef GL_ES +precision highp float; +#endif + +uniform float u_time; +uniform vec2 u_resolution; +//uniform vec4 mouse; +uniform sampler2D u_tex0; + +void main(void) +{ + vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy; + //vec2 m = -1.0 + 2.0 * mouse.xy / u_resolution.xy; + vec2 m = vec2(-.8, .8); + + float a1 = atan(p.y-m.y,p.x-m.x); + float r1 = sqrt(dot(p-m,p-m)); + float a2 = atan(p.y+m.y,p.x+m.x); + float r2 = sqrt(dot(p+m,p+m)); + + vec2 uv; + uv.x = 0.2*u_time + (r1-r2)*0.25; + uv.y = sin(2.0*(a1-a2)); + + float w = r1*r2*0.8; + vec3 col = texture2D(u_tex0,uv).xyz; + + gl_FragColor = vec4(col/(.1+w),1.0); +} \ No newline at end of file -- cgit v1.2.3