initial: added basic stuff

basic/colorchange_mouse.glsl

@@ -0,0 +1,12 @@
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+uniform vec2 u_resolution;
+uniform vec2 u_mouse;
+uniform float u_time;
+
+void main() {
+	vec2 st = (gl_FragCoord.xy+u_mouse)/(u_resolution*vec2(2, 2));
+	gl_FragColor = vec4(st.x, st.y, abs(sin(u_time)*0.8), 1.0);
+}