didnt work out as expected :/

experiments/first_wall/main.frag

@@ -0,0 +1,45 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform vec2 u_resolution;
+uniform vec2 u_mouse;
+uniform float u_time;
+
+#define PI 3.14159265359
+
+vec2 getSmooths(float size, float center) {
+  vec2 st = gl_FragCoord.xy/u_resolution;
+  return vec2(smoothstep(center - size, center, st.x) - smoothstep(center, center+size, st.x), smoothstep(center - size, center, st.y) - smoothstep(center, center+size, st.y));
+}
+
+vec3 gradient_spot(float center, float radius) {
+  float r_size = radius/3.0;
+  float g_size = r_size*2.0;
+  float b_size = radius;
+  vec2 r = getSmooths(r_size, center);
+  vec2 g = getSmooths(g_size, center);
+  vec2 b = getSmooths(b_size, center);
+  vec3 y = vec3(r.y - r.x, g.y-g.x, b.y-b.x);
+  return y;
+}
+
+
+void main() {
+  vec2 st = gl_FragCoord.xy/u_resolution;
+  // float y = pow(st.x, 2.0);
+  // float y = pow(st.x, PI);
+  // float y = sqrt(st.x);
+  // float y = step(0.5, st.x);
+  // float y = smoothstep(0.3,0.9,st.x);
+  // this code creates a smooth gradient for a line edge from 0.4 to 0.5 and 0.5 to 0.6 since it's only checking the x coors
+  // float y = smoothstep(0.4,0.5,st.x) - smoothstep(0.5,0.6,st.x);
+  //vec3 color = vec3(y);
+
+  //float pct = plot(st,y);
+  //color = (1.0-pct)*color+pct*vec3(0.0,1.0,0.0);
+  float center = (sin(u_time) + 1.0)/2.0;
+  float radius = (cos(u_time) + 1.0) * 0.3;
+  vec3 color = gradient_spot(center, radius);
+  gl_FragColor = vec4(color, 1.0);
+}