1 files changed, 5 insertions, 0 deletions
diff --git a/src/webGLWorker.js b/src/webGLWorker.js
index 1a051bbd..be409cfe 100644
--- a/src/webGLWorker.js
+++ b/src/webGLWorker.js
@@ -629,6 +629,11 @@ function WebGLWorker() {
       default: throw 'bad getProgramParameter ' + revname(name);
     }
   };
+  this.getActiveAttrib = function(program, index) {
+    var name = program.attributeVec[index];
+    if (!name) return null;
+    return program.attributes[name];
+  };
   this.getActiveUniform = function(program, index) {
     var name = program.uniformVec[index];
     if (!name) return null;