progress on adding base layer

old/android/assets/shaders/combine.fsh

@@ -0,0 +1,27 @@
+#ifdef GL_ES
+#define LOWP lowp
+precision mediump float;
+#else
+#define LOWP
+#endif
+
+varying LOWP vec4 vColor;
+varying vec2 vTexCoord;
+
+
+uniform sampler2D u_texture;
+uniform sampler2D u_texture1;
+
+void main() {
+        vec4 origColor = texture2D(u_texture, vTexCoord);
+        vec4 blurredColor = texture2D(u_texture1, vTexCoord);
+
+        vec4 result;
+        result = origColor + blurredColor;
+        result.a = vColor.a;
+        result.rgb *= vColor.rgb;
+        gl_FragColor = result;
+
+
+}
+