Initial commit

data/shaders/weather.fragment

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+// __multiversion__
+// This signals the loading code to prepend either #version 100 or #version 300 es as apropriate.
+
+// To use centroid sampling we need to have version 300 es shaders, which requires changing:
+// attribute to in
+// varying to out when in vertex shaders or in when in fragment shaders
+// defining an out vec4 FragColor and replacing uses of gl_FragColor with FragColor
+// texture2D to texture
+#if __VERSION__ >= 300
+
+// version 300 code
+
+#define varying in
+#define texture2D texture
+out vec4 FragColor;
+#define gl_FragColor FragColor
+
+#else
+
+// version 100 code
+
+#endif
+
+varying vec2 uv0;
+varying vec2 uv1;
+varying vec4 color;
+
+#ifdef FOG
+	varying vec4 fogColor;
+#endif
+
+uniform sampler2D TEXTURE_0;
+uniform sampler2D TEXTURE_1;
+
+void main()
+{
+	vec4 diffuse = texture2D( TEXTURE_0, uv0 ) * texture2D( TEXTURE_1, uv1 );
+
+#ifdef ALPHA_TEST
+	if(diffuse.a < 0.5)
+	 	discard;
+#endif
+	diffuse *= color;
+
+#ifdef FOG
+	diffuse.rgb = mix( diffuse.rgb, fogColor.rgb, fogColor.a );
+#endif
+
+	gl_FragColor.rgba = diffuse;
+}