diff options
Diffstat (limited to 'assets/shaders/Fly.frag.glsl')
-rw-r--r-- | assets/shaders/Fly.frag.glsl | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/assets/shaders/Fly.frag.glsl b/assets/shaders/Fly.frag.glsl new file mode 100644 index 00000000..f99b5ab8 --- /dev/null +++ b/assets/shaders/Fly.frag.glsl | |||
@@ -0,0 +1,23 @@ | |||
1 | #ifdef GL_ES | ||
2 | precision highp float; | ||
3 | #endif | ||
4 | |||
5 | uniform vec2 u_resolution; | ||
6 | uniform float u_time; | ||
7 | uniform sampler2D u_tex0; | ||
8 | |||
9 | void main(void) | ||
10 | { | ||
11 | vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy; | ||
12 | vec2 uv; | ||
13 | |||
14 | float an = u_time*.25; | ||
15 | |||
16 | float x = p.x*cos(an)-p.y*sin(an); | ||
17 | float y = p.x*sin(an)+p.y*cos(an); | ||
18 | |||
19 | uv.x = .25*x/abs(y); | ||
20 | uv.y = .20*u_time + .25/abs(y); | ||
21 | |||
22 | gl_FragColor = vec4(texture2D(u_tex0,uv).xyz * y*y, 1.0); | ||
23 | } | ||