basic: added color panes and moving lights; utilities: added shapes; weird: added piet (doesnt scale)

2017-06-06 01:30:01 -04:00
parent 86e54bd373
commit aca017dec1
4 changed files with 71 additions and 0 deletions
--- a/basic/moving_lights.glsl
+++ b/basic/moving_lights.glsl
@@ -0,0 +1,14 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform vec2 u_resolution;
+uniform vec2 u_mouse;
+uniform float u_time;
+
+void main(){
+    vec2 p1 = vec2(0.8*abs(sin(u_time)), 0.8*abs(cos(u_time)));
+    vec2 p2 = u_mouse/u_resolution;
+    vec2 st = gl_FragCoord.xy/u_resolution;
+    gl_FragColor = vec4(vec3(pow(distance(st,vec2(p1))*0.5,distance(st,p2)*0.5)), 1.0);
+}