各种 Shaders 效果
Last updated
Last updated
将以下代码复制到 Shaders 在线编辑器 可以查看效果。
#ifdef GL_ES
precision mediump float;
#endif
uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_time;
void main() {
vec2 position = ( gl_FragCoord.xy / u_resolution.xy ) + u_mouse / 4.0;
float color = 0.0;
color += sin( position.x * cos( u_time / 15.0 ) * 80.0 ) + cos( position.y * cos( u_time / 15.0 ) * 10.0 );
color += sin( position.y * sin( u_time / 10.0 ) * 40.0 ) + cos( position.x * sin( u_time / 25.0 ) * 40.0 );
color += sin( position.x * sin( u_time / 5.0 ) * 10.0 ) + sin( position.y * sin( u_time / 35.0 ) * 80.0 );
color *= sin( u_time / 10.0 ) * 0.5;
gl_FragColor = vec4( vec3( color, color * 0.5, sin( color + u_time / 3.0 ) * 0.75 ), 1.0 );
}
#ifdef GL_ES
precision mediump float;
#endif
#define PI 3.14159265359
uniform vec2 u_resolution;
uniform float u_time;
vec3 rgb2hsb( in vec3 c ){
vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
vec4 p = mix(vec4(c.bg, K.wz),
vec4(c.gb, K.xy),
step(c.b, c.g));
vec4 q = mix(vec4(p.xyw, c.r),
vec4(c.r, p.yzx),
step(p.x, c.r));
float d = q.x - min(q.w, q.y);
float e = 1.0e-10;
return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)),
d / (q.x + e),
q.x);
}
// Function from Iñigo Quiles
// https://www.shadertoy.com/view/MsS3Wc
vec3 hsb2rgb( in vec3 c ){
vec3 rgb = clamp(abs(mod(c.x*6.0+vec3(0.0,4.0,2.0),
6.0)-3.0)-1.0,
0.0,
1.0 );
rgb = rgb*rgb*(3.0-2.0*rgb);
return c.z * mix(vec3(1.0), rgb, c.y);
}
void main(){
vec2 st = gl_FragCoord.xy/u_resolution;
vec3 color = vec3(0.0);
// We map x (0.0 - 1.0) to the hue (0.0 - 1.0)
// And the y (0.0 - 1.0) to the brightness
color = hsb2rgb(vec3(st.x,1.0,st.y));
gl_FragColor = vec4(color,1.0);
}
#ifdef GL_ES
precision mediump float;
#endif
uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_time;
void main() {
vec3 c;
float l,z = u_time;
for(int i = 0; i < 3; i++) {
vec2 uv, p = gl_FragCoord.xy/u_resolution.xy;
uv = p;
p -= .5;
p.x *= u_resolution.x/u_resolution.y;
z += .07;
l = length(p);
uv += p/l * (sin(z)+1.) * abs(sin(l*9.-z*2.));
c[i] = 0.018/length(abs(mod(uv,1.)-.5));
}
gl_FragColor = vec4(c/l,u_time);
}