aboutsummaryrefslogtreecommitdiff
path: root/assets/shaders/Deform.frag.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'assets/shaders/Deform.frag.glsl')
-rw-r--r--assets/shaders/Deform.frag.glsl29
1 files changed, 29 insertions, 0 deletions
diff --git a/assets/shaders/Deform.frag.glsl b/assets/shaders/Deform.frag.glsl
new file mode 100644
index 00000000..1dbe45a0
--- /dev/null
+++ b/assets/shaders/Deform.frag.glsl
@@ -0,0 +1,29 @@
1#ifdef GL_ES
2precision highp float;
3#endif
4
5uniform float u_time;
6uniform vec2 u_resolution;
7//uniform vec4 mouse;
8uniform sampler2D u_tex0;
9
10void main(void)
11{
12 vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy;
13 //vec2 m = -1.0 + 2.0 * mouse.xy / u_resolution.xy;
14 vec2 m = vec2(-.8, .8);
15
16 float a1 = atan(p.y-m.y,p.x-m.x);
17 float r1 = sqrt(dot(p-m,p-m));
18 float a2 = atan(p.y+m.y,p.x+m.x);
19 float r2 = sqrt(dot(p+m,p+m));
20
21 vec2 uv;
22 uv.x = 0.2*u_time + (r1-r2)*0.25;
23 uv.y = sin(2.0*(a1-a2));
24
25 float w = r1*r2*0.8;
26 vec3 col = texture2D(u_tex0,uv).xyz;
27
28 gl_FragColor = vec4(col/(.1+w),1.0);
29} \ No newline at end of file