shaders moved to subdir; console click on the actor to type its id in

assets/shaders/aaaxmul.frag

@@ -0,0 +1,20 @@
+#version 120
+#ifdef GL_ES
+    precision mediump float;
+#endif
+
+varying vec4 v_color;
+varying vec2 v_texCoords;
+uniform sampler2D u_texture; // world texture, has alpha value that is meaningful
+
+uniform sampler2D tex1; // lightmap texture
+uniform vec2 tex1Offset;
+
+void main() {
+	vec4 colorTex0 = texture2D(u_texture, v_texCoords); // world texture
+    vec4 colorTex1 = texture2D(tex1, v_texCoords); // lightmap (RGBA)
+
+    colorTex1 = vec4(colorTex1.www, 1.0);
+
+    gl_FragColor = colorTex0 * colorTex1;
+}