You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
629 B
GLSL
28 lines
629 B
GLSL
9 years ago
|
// By Hang Do Thi Duc ( http://22-8miles.com )
|
||
|
|
// For Shader Studio Course https://github.com/patriciogonzalezvivo/ss2015
|
||
|
|
|
||
|
|
#ifdef GL_ES
|
||
|
|
precision mediump float;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
uniform vec2 u_resolution;
|
||
|
|
uniform vec2 u_mouse;
|
||
|
|
uniform float u_time;
|
||
|
|
|
||
|
|
void main(){
|
||
|
|
vec2 st = gl_FragCoord.xy/u_resolution.xy;
|
||
|
|
vec3 color = vec3(0.0);
|
||
|
|
|
||
|
|
vec2 pos = vec2(0.5)-st;
|
||
|
|
|
||
|
|
float r = length(pos)*2.0;
|
||
|
|
float a = atan(pos.y,pos.x);
|
||
|
|
|
||
|
|
|
||
|
|
float f = abs(cos(a*12. + sin(u_time * 0.2))*sin(a*3. + cos(u_time * 0.3)))*.8+.1;
|
||
|
|
float b = 1.-smoothstep( f, f+0.2, sin(r * 2.));
|
||
|
|
|
||
|
|
color = vec3( b );
|
||
|
|
|
||
|
|
gl_FragColor = vec4(color, 1.0);
|
||
|
|
}
|