experimental map shaders

modules/game_shaders/shaders/bloom.frag

@@ -0,0 +1,16 @@
+uniform float u_Time;
+uniform sampler2D u_Tex0;
+varying vec2 v_TexCoord;
+
+void main()
+{
+    vec4 color = texture2D(u_Tex0, v_TexCoord);
+    int j;
+    int i;
+
+    for(i = -2 ;i <= 2; i++)
+        for(j = -2; j <= 2; j++)
+            color += texture2D(u_Tex0, v_TexCoord + vec2(i, j)*0.0025) * 0.025;
+
+    gl_FragColor = color;
+}