IngameRenderer: damned thing finally works somewhat

assets/aaaxmul.frag

@@ -8,10 +8,13 @@ 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)
 
-    gl_FragColor = colorTex0 * vec4(colorTex1.aaa, 1.0);
+    colorTex1 = vec4(colorTex1.www, 1.0);
+
+    gl_FragColor = colorTex0 * colorTex1;
 }