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Versions: 21
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Contents
#version 330 core
out vec4 color_out;
#ifdef GL_ES
precision mediump float;
#endif
uniform float time;
uniform vec2 mouse;
uniform vec2 resolution;
// bpt.modified.2016
// started with http://glslsandbox.com/e#7886.9
float sdEpicyloidLike(vec2 center, float radius, vec2 position, float n)
{
float l = distance(position, center);
float r1 = radius+0.2/(1.0+abs(sin(n*atan(position.y-center.y, position.x-center.x))));
return clamp(abs(sin(((l * r1)) + 0.3)),-10.0,10.0);
}
float test(vec2 center, float radius, vec2 position)
{
return sdEpicyloidLike( center, radius, position, floor(abs(10.*sin(time*0.3)))*2.+0. );
}
void main(void)
{
vec2 position = 4.0*(gl_FragCoord.xy - 0.5 * resolution) / resolution.y;
float enabler = 1.0;
float r = test(vec2(sin(time*1.01), 0.5*cos(time*0.98)), 1.5-sin(time*.9), position);
float g = enabler*test(vec2(cos(time*0.94), sin(time*0.97)), 1.5-sin(time*.8), position);
float b = enabler*test(vec2(sin(time*0.93), sin(time*0.99)), 1.5-sin(time*.7), position);
color_out = vec4(r, g, b, 1.0);
}
Version data entries
21 entries across 21 versions & 1 rubygems