Merge branch 'pentool' into brushtool

Conflicts:
	imports/codemirror/mode/scheme/scheme.js
	js/tools/BrushTool.js

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 @@
+#ifdef GL_ES
+precision highp float;
+#endif
+
+uniform vec2 u_resolution;
+uniform float u_time;
+uniform sampler2D u_tex0;
+
+void main(void)
+{
+    vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy;
+    vec2 uv;
+
+    float an = u_time*.25;
+
+    float x = p.x*cos(an)-p.y*sin(an);
+    float y = p.x*sin(an)+p.y*cos(an);
+     
+    uv.x = .25*x/abs(y);
+    uv.y = .20*u_time + .25/abs(y);
+
+    gl_FragColor = vec4(texture2D(u_tex0,uv).xyz * y*y, 1.0);
+}