moving rectarealight brdf data to an example file. rest of implementa…

…tion left in place

examples/webgl_lights_rectarealight.html

@@ -41,6 +41,8 @@
 		</div>
 
 		<script src="../build/three.min.js"></script>
+		<script src="js/lights/RectAreaLightUniformsLib.js"></script>
+
 		<script src="../examples/js/libs/dat.gui.min.js"></script>
 		<script src="../examples/js/controls/OrbitControls.js"></script>
 		<script src="js/Detector.js"></script>

src/lights/RectAreaLight.js

@@ -14,6 +14,11 @@ THREE.RectAreaLight = function ( color, intensity, width, height ) {
 	this.width = ( width !== undefined ) ? width : 10;
 	this.height = ( height !== undefined ) ? height : 10;
 
+	// TODO (abelnation): remove this warning when RectAreaLight is fully included in build files
+	if (THREE.UniformsLib['ltc_brdf'] == undefined) {
+		console.warn( 'RectAreaLight will not function properly without including examples/js/lights/RectAreaLightUniformsLib.js' );
+	}
+
 	// TODO (abelnation): distance/decay
 
 };

src/renderers/shaders/ShaderLib.js

@@ -58,7 +58,7 @@ THREE.ShaderLib = {
 			THREE.UniformsLib[ 'normalmap' ],
 			THREE.UniformsLib[ 'displacementmap' ],
 			THREE.UniformsLib[ 'fog' ],
-			THREE.UniformsLib[ 'ltc_brdf' ],
+			// TODO (abelnation): include LTC brdf data
 			THREE.UniformsLib[ 'lights' ],
 
 			{
@@ -88,8 +88,8 @@ THREE.ShaderLib = {
 			THREE.UniformsLib[ 'roughnessmap' ],
 			THREE.UniformsLib[ 'metalnessmap' ],
 			THREE.UniformsLib[ 'fog' ],
+			// TODO (abelnation): include LTC brdf data
 			THREE.UniformsLib[ 'lights' ],
-			THREE.UniformsLib[ 'ltc_brdf' ],
 
 			{
 				"emissive" : { value: new THREE.Color( 0x000000 ) },