From d4b3dabe142b0bbeec771674a740002361dbb167 Mon Sep 17 00:00:00 2001
From: "Mr.doob" <info@mrdoob.com>
Date: Thu, 8 Feb 2018 15:20:28 -0800
Subject: [PATCH] ShaderMaterial: Added uniformsNeedUpdate flag.

---
 src/materials/ShaderMaterial.js | 1 +
 src/renderers/WebGLRenderer.js  | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/src/materials/ShaderMaterial.js b/src/materials/ShaderMaterial.js
index f36bda198f..8ba4a23088 100644
--- a/src/materials/ShaderMaterial.js
+++ b/src/materials/ShaderMaterial.js
@@ -63,6 +63,7 @@ function ShaderMaterial( parameters ) {
 	};
 
 	this.index0AttributeName = undefined;
+	this.uniformsNeedUpdate = false;
 
 	if ( parameters !== undefined ) {
 
diff --git a/src/renderers/WebGLRenderer.js b/src/renderers/WebGLRenderer.js
index 0c2afafe1c..9bd261742e 100644
--- a/src/renderers/WebGLRenderer.js
+++ b/src/renderers/WebGLRenderer.js
@@ -1931,6 +1931,12 @@ function WebGLRenderer( parameters ) {
 
 		}
 
+		if ( material.isShaderMaterial && material.uniformsNeedUpdate === true ) {
+
+			WebGLUniforms.upload( _gl, materialProperties.uniformsList, m_uniforms, _this );
+			material.uniformsNeedUpdate = false;
+
+		}
 
 		// common matrices
 
-- 
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