precision highp float; uniform vec2 resolution; uniform float time; uniform vec2 mouse; // https://gist.github.com/mattatz/d7b8decb481947d2e37eab98aff2d0ad float ease_linear(float x) { return x; } float ease_in_quad(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*(t/=d)*t + b; } float ease_out_quad(float x) { float t=x; float b=0.; float c=1.; float d=1.; return -c *(t/=d)*(t-2.) + b; } float ease_in_out_quad(float x) { float t=x; float b=0.; float c=1.; float d=1.; if ((t/=d/2.)<1.) return c/2.*t*t + b; return -c/2. * ((--t)*(t-2.) - 1.) + b; } float ease_in_cubic(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*(t/=d)*t*t + b; } float ease_out_cubic(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*((t=t/d-1.)*t*t + 1.) + b; } float ease_in_out_cubic(float x) { float t=x; float b=0.; float c=1.; float d=1.; if ((t/=d/2.) < 1.) return c/2.*t*t*t + b; return c/2.*((t-=2.)*t*t + 2.) + b; } float ease_in_quart(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*(t/=d)*t*t*t + b; } float ease_out_quart(float x) { float t=x; float b=0.; float c=1.; float d=1.; return -c * ((t=t/d-1.)*t*t*t - 1.) + b; } float ease_in_out_quart(float x) { float t=x; float b=0.; float c=1.; float d=1.; if ((t/=d/2.) < 1.) return c/2.*t*t*t*t + b; return -c/2. * ((t-=2.)*t*t*t - 2.) + b; } float ease_in_quint(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*(t/=d)*t*t*t*t + b; } float ease_out_quint(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c*((t=t/d-1.)*t*t*t*t + 1.) + b; } float ease_in_out_quint(float x) { float t=x; float b=0.; float c=1.; float d=1.; if ((t/=d/2.) < 1.) return c/2.*t*t*t*t*t + b; return c/2.*((t-=2.)*t*t*t*t + 2.) + b; } float ease_in_sine(float x) { float t=x; float b=0.; float c=1.; float d=1.; return -c * cos(t/d * (3.14159265359/2.)) + c + b; } float ease_out_sine(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c * sin(t/d * (3.14159265359/2.)) + b; } float ease_in_out_Sine(float x) { float t=x; float b=0.; float c=1.; float d=1.; return -c/2. * (cos(3.14159265359*t/d) - 1.) + b; } float ease_in_expo(float x) { float t=x; float b=0.; float c=1.; float d=1.; return (t==0.) ? b : c * pow(2., 10. * (t/d - 1.)) + b; } float ease_out_expo(float x) { float t=x; float b=0.; float c=1.; float d=1.; return (t==d) ? b+c : c * (-pow(2., -10. * t/d) + 1.) + b; } float ease_in_out_expo(float x) { float t=x; float b=0.; float c=1.; float d=1.; if (t==0.) return b; if (t==d) return b+c; if ((t/=d/2.) < 1.) return c/2. * pow(2., 10. * (t - 1.)) + b; return c/2. * (-pow(2., -10. * --t) + 2.) + b; } float ease_in_circ(float x) { float t=x; float b=0.; float c=1.; float d=1.; return -c * (sqrt(1. - (t/=d)*t) - 1.) + b; } float ease_out_circ(float x) { float t=x; float b=0.; float c=1.; float d=1.; return c * sqrt(1. - (t=t/d-1.)*t) + b; } float ease_in_out_circ(float x) { float t=x; float b=0.; float c=1.; float d=1.; if ((t/=d/2.) < 1.) return -c/2. * (sqrt(1. - t*t) - 1.) + b; return c/2. * (sqrt(1. - (t-=2.)*t) + 1.) + b; } float ease_in_elastic(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s=1.70158;float p=0.;float a=c; if (t==0.) return b; if ((t/=d)==1.) return b+c; if (p == 0.) p=d*.3; if (a < abs(c)) { a=c; s=p/4.; } else s = p/(2.*3.14159265359) * asin (c/a); return -(a*pow(2.,10.*(t-=1.)) * sin( (t*d-s)*(2.*3.14159265359)/p )) + b; } float ease_out_elastic(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s=1.70158;float p=0.;float a=c; if (t==0.) return b; if((t/=d)==1.) return b+c; if(p==0.) p=d*.3; if (a < abs(c)) {a=c; s=p/4.;} else s = p/(2.*3.14159265359) * asin (c/a); return a*pow(2.,-10.*t) * sin( (t*d-s)*(2.*3.14159265359)/p ) + c + b; } float ease_in_out_elastic(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s=1.70158;float p=0.;float a=c; if (t==0.) return b; if ((t/=d/2.)==2.) return b+c; if (p==0.) p=d*(.3*1.5); if (a < abs(c)) {a=c; s=p/4.;} else s = p/(2.*3.14159265359) * asin (c/a); if (t < 1.) return -.5*(a*pow(2.,10.*(t-=1.)) * sin( (t*d-s)*(2.*3.14159265359)/p )) + b; return a*pow(2.,-10.*(t-=1.)) * sin( (t*d-s)*(2.*3.14159265359)/p )*.5 + c + b; } float ease_in_back(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s = 1.70158; return c*(t/=d)*t*((s+1.)*t - s) + b; } float ease_out_back(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s = 1.70158; return c*((t=t/d-1.)*t*((s+1.)*t + s) + 1.) + b; } float ease_in_out_back(float x) { float t=x; float b=0.; float c=1.; float d=1.; float s = 1.70158; if ((t/=d/2.) < 1.) return c/2.*(t*t*(((s*=(1.525))+1.)*t - s)) + b; return c/2.*((t-=2.)*t*(((s*=(1.525))+1.)*t + s) + 2.) + b; } float ease_out_bounce(float x, float t, float b, float c, float d) { if ((t/=d) < (1./2.75)) { return c*(7.5625*t*t) + b; } else if (t < (2./2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b; } else if (t < (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b; } else { return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b; } } float ease_out_bounce(float x){ return ease_out_bounce(x, x, 0., 1., 1.); } float ease_in_bounce(float x, float t, float b, float c, float d) { return c - ease_out_bounce (x, d-t, 0., c, d) + b; } float ease_in_bounce(float x){ return ease_in_bounce(x, x, 0., 1., 1.); } float ease_in_out_bounce(float x, float t, float b, float c, float d) { if (t < d/2.) return ease_in_bounce (x, t*2., 0., c, d) * .5 + b; return ease_out_bounce (x, t*2.-d, 0., c, d) * .5 + c*.5 + b; } float ease_in_out_bounce(float x){ return ease_in_out_bounce(x, x, 0., 1., 1.); } /////////// void main(){ vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x,resolution.y); p-=.5; vec3 col = vec3(0.); float t = fract(time); float timeEased = ease_out_bounce(t); // TRY ANY EASING-FUNCTION HERE! ENJOY!! col+=step(.5,length(p+timeEased)); gl_FragColor = vec4(col, 1.0); }

速度警察に摘発されないためのイージング関数集