diff options
Diffstat (limited to 'assets/shaders/Star.frag.glsl')
-rw-r--r-- | assets/shaders/Star.frag.glsl | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/assets/shaders/Star.frag.glsl b/assets/shaders/Star.frag.glsl deleted file mode 100644 index f61f43c9..00000000 --- a/assets/shaders/Star.frag.glsl +++ /dev/null | |||
@@ -1,31 +0,0 @@ | |||
1 | #ifdef GL_ES | ||
2 | precision highp float; | ||
3 | #endif | ||
4 | |||
5 | uniform float u_time; | ||
6 | uniform float u_speed; | ||
7 | uniform vec2 u_resolution; | ||
8 | uniform sampler2D u_tex0; | ||
9 | |||
10 | void main(void) | ||
11 | { | ||
12 | vec2 uv; | ||
13 | |||
14 | float time = u_time * u_speed; | ||
15 | |||
16 | vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy; | ||
17 | float a = atan(p.y,p.x); | ||
18 | float r = sqrt(dot(p,p)); | ||
19 | float s = r * (1.0+0.8*cos(time*1.0)); | ||
20 | |||
21 | uv.x = .02*p.y+.03*cos(-time+a*3.0)/s; | ||
22 | uv.y = .1*time +.02*p.x+.03*sin(-time+a*3.0)/s; | ||
23 | |||
24 | float w = .9 + pow(max(1.5-r,0.0),4.0); | ||
25 | |||
26 | w*=0.6+0.4*cos(time+3.0*a); | ||
27 | |||
28 | vec3 col = texture2D(u_tex0,uv).xyz; | ||
29 | |||
30 | gl_FragColor = vec4(col*w,1.0); | ||
31 | } \ No newline at end of file | ||