Add null-checking for gl.VERSION

bd2de3ea · finscn · 7c6b671d · bd2de3ea
隐藏空白更改
内联并排

Showing with 3 addition and 2 deletion

src/renderers/webgl/WebGLState.js src/renderers/webgl/WebGLState.js +3 -2

未找到文件。
--- a/src/renderers/webgl/WebGLState.js
+++ b/src/renderers/webgl/WebGLState.js
@@ -342,8 +342,9 @@ function WebGLState( gl, extensions, utils ) {

 	var maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );

-	var version = parseFloat( /^WebGL\ ([0-9])/.exec( gl.getParameter( gl.VERSION ) )[ 1 ] );
-	var lineWidthAvailable = parseFloat( version ) >= 1.0;
+	var version = /^WebGL\ ([0-9])/.exec( gl.getParameter( gl.VERSION ) );
+	version = version ? parseFloat( version[ 1 ] ) : 1.0;
+	var lineWidthAvailable = version >= 1.0;

 	var currentTextureSlot = null;
 	var currentBoundTextures = {};