From d4191cf082878344ae7010152db30ebaf070387c Mon Sep 17 00:00:00 2001
From: tschw <tschwinger@isonews2.com>
Date: Wed, 8 Jul 2015 18:30:16 +0200
Subject: [PATCH] Fixes wrong program reference counting.

---
 src/renderers/WebGLRenderer.js | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index fbef89050d..e1eb4b95df 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -1927,6 +1927,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 		}
 
 		var code = chunks.join();
+		var programChange = true;
 
 		if ( !materialProperties.program ) {
 
@@ -1940,7 +1941,7 @@ THREE.WebGLRenderer = function ( parameters ) {
 
 		} else if ( shaderID !== undefined ) {
 
-			// same glsl
+			// same glsl and uniform list
 			return;
 
 		} else if ( materialProperties.__webglShader.uniforms === material.uniforms ) {
@@ -1948,6 +1949,11 @@ THREE.WebGLRenderer = function ( parameters ) {
 			// same uniforms (container object)
 			return;
 
+		} else {
+
+			// only rebuild uniform list
+			programChange = false;
+
 		}
 
 		if ( shaderID ) {
@@ -1983,7 +1989,12 @@ THREE.WebGLRenderer = function ( parameters ) {
 			if ( programInfo.code === code ) {
 
 				program = programInfo;
-				program.usedTimes ++;
+
+				if ( programChange ) {
+
+					program.usedTimes ++;
+
+				}
 
 				break;
 
-- 
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