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jbilcke/antialiased_webgl_circle

Created October 19, 2011 08:59
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Anti-aliased circle in GLSL (eg. WebGL)
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antialiased_webgl_circle
void main(void) {
vec2 pos = mod(gl_FragCoord.xy, vec2(50.0)) - vec2(25.0);
gl_FragColor = mix(vec4(.90, .90, .90, 1.0), vec4(.20, .20, .40, 1.0), smoothstep(380.25, 420.25, dot(pos, pos)));
}
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