Support encodings such as RGBE

examples/js/loaders/EquirectangularToCubeGenerator.js

@@ -90,9 +90,7 @@ THREE.EquirectangularToCubeGenerator.prototype = {
 				\n\
 				void main() {\n\
 					vec2 uv = EquirectangularSampleUV(normalize(localPosition));\n\
-    			vec3 color = texture2D(equirectangularMap, uv).rgb;\n\
-    			\n\
-					gl_FragColor = vec4( color, 1.0 );\n\
+					gl_FragColor = texture2D(equirectangularMap, uv);\n\
 				}",
 
 			blending: THREE.NoBlending