Examples: More usage of WebGLExtensions.has().

examples/js/misc/GPUComputationRenderer.js

@@ -155,16 +155,15 @@ THREE.GPUComputationRenderer = function ( sizeX, sizeY, renderer ) {
 
 	this.init = function () {
 
-		if ( ! renderer.capabilities.isWebGL2 &&
-			 ! renderer.extensions.get( "OES_texture_float" ) ) {
+		if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'OES_texture_float' ) === false ) {
 
-			return "No OES_texture_float support for float textures.";
+			return 'No OES_texture_float support for float textures.';
 
 		}
 
 		if ( renderer.capabilities.maxVertexTextures === 0 ) {
 
-			return "No support for vertex shader textures.";
+			return 'No support for vertex shader textures.';
 
 		}
 

examples/jsm/misc/GPUComputationRenderer.js

@@ -169,16 +169,15 @@ var GPUComputationRenderer = function ( sizeX, sizeY, renderer ) {
 
 	this.init = function () {
 
-		if ( ! renderer.capabilities.isWebGL2 &&
-			 ! renderer.extensions.get( "OES_texture_float" ) ) {
+		if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'OES_texture_float' ) === false ) {
 
-			return "No OES_texture_float support for float textures.";
+			return 'No OES_texture_float support for float textures.';
 
 		}
 
 		if ( renderer.capabilities.maxVertexTextures === 0 ) {
 
-			return "No support for vertex shader textures.";
+			return 'No support for vertex shader textures.';
 
 		}
 

examples/webgl_buffergeometry_instancing.html

@@ -169,7 +169,7 @@
 			renderer.setSize( window.innerWidth, window.innerHeight );
 			container.appendChild( renderer.domElement );
 
-			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
+			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'ANGLE_instanced_arrays' ) === false ) {
 
 				document.getElementById( 'notSupported' ).style.display = '';
 				return;

examples/webgl_buffergeometry_instancing_billboards.html

@@ -84,7 +84,7 @@
 
 			renderer = new THREE.WebGLRenderer();
 
-			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
+			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'ANGLE_instanced_arrays' ) === false ) {
 
 				document.getElementById( 'notSupported' ).style.display = '';
 				return false;

examples/webgl_buffergeometry_instancing_interleaved.html

@@ -155,7 +155,7 @@
 			renderer.setSize( window.innerWidth, window.innerHeight );
 			container.appendChild( renderer.domElement );
 
-			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.get( 'ANGLE_instanced_arrays' ) === null ) {
+			if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'ANGLE_instanced_arrays' ) === false ) {
 
 				document.getElementById( 'notSupported' ).style.display = '';
 				return;

examples/webgl_depth_texture.html

@@ -91,7 +91,7 @@
 
 				renderer = new THREE.WebGLRenderer();
 
-				if ( renderer.capabilities.isWebGL2 === false && ! renderer.extensions.get( 'WEBGL_depth_texture' ) ) {
+				if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'WEBGL_depth_texture' ) === false ) {
 
 					supportsExtension = false;
 					document.querySelector( '#error' ).style.display = 'block';

examples/webgl_shaders_tonemapping.html

@@ -333,7 +333,7 @@
 
 				parameters.type = THREE.FloatType;
 
-				if ( renderer.capabilities.isWebGL2 === false && ! renderer.extensions.get( 'OES_texture_half_float_linear' ) ) {
+				if ( renderer.capabilities.isWebGL2 === false && renderer.extensions.has( 'OES_texture_half_float_linear' ) === false ) {
 
 					parameters.type = undefined; // avoid usage of floating point textures