Merge branch 'pentool' into brushtool

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

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 @@
+#ifdef GL_ES
+precision highp float;
+#endif
+
+uniform float u_time;
+uniform vec2 u_resolution;
+//uniform vec4 mouse;
+uniform sampler2D u_tex0;
+
+void main(void)
+{
+    vec2 p = -1.0 + 2.0 * gl_FragCoord.xy / u_resolution.xy;
+    //vec2 m = -1.0 + 2.0 * mouse.xy / u_resolution.xy;
+        vec2 m = vec2(-.8, .8);
+
+    float a1 = atan(p.y-m.y,p.x-m.x);
+    float r1 = sqrt(dot(p-m,p-m));
+    float a2 = atan(p.y+m.y,p.x+m.x);
+    float r2 = sqrt(dot(p+m,p+m));
+
+    vec2 uv;
+    uv.x = 0.2*u_time + (r1-r2)*0.25;
+    uv.y = sin(2.0*(a1-a2));
+
+    float w = r1*r2*0.8;
+    vec3 col = texture2D(u_tex0,uv).xyz;
+
+    gl_FragColor = vec4(col/(.1+w),1.0);
+}
\ No newline at end of file