diff --git a/include/osg/GLExtensions b/include/osg/GLExtensions
index 1a7c0e437..0d788f2f8 100644
--- a/include/osg/GLExtensions
+++ b/include/osg/GLExtensions
@@ -555,6 +555,9 @@ class OSG_EXPORT GLExtensions : public osg::Referenced
 
         void (GL_APIENTRY * glTexImage3D) ( GLenum target, GLint level, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
         void (GL_APIENTRY * glTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const GLvoid *pixels);
+        void (GL_APIENTRY * glTexStorage3D) ( GLenum target, GLsizei numMipmapLevels,GLenum sizedInternalFormat,GLsizei width,GLsizei height,GLsizei depth);
+        void (GL_APIENTRY * glTextureStorage3D) ( GLuint texture, GLsizei numMipmapLevels,GLenum sizedInternalFormat,GLsizei width,GLsizei height,GLsizei depth);
+
         void (GL_APIENTRY * glCopyTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height );
         void (GL_APIENTRY * glCompressedTexImage3D) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const GLvoid *data);
         void (GL_APIENTRY * glCompressedTexSubImage3D) ( GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const GLvoid *data );
@@ -658,6 +661,12 @@ class OSG_EXPORT GLExtensions : public osg::Referenced
         void (GL_APIENTRY * glBlitFramebuffer) (GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum);
         void (GL_APIENTRY * glGetRenderbufferParameteriv) (GLenum, GLenum, GLint*);
 
+        //ARB_framebuffer_no_attachments
+        void (GL_APIENTRY * glFramebufferParameteri)(GLenum target, GLenum pname, GLint param);
+        void (GL_APIENTRY * glGetFramebufferParameteriv)(GLenum target, GLenum pname, GLint *params);
+        void (GL_APIENTRY * glNamedFramebufferParameteri)(GLuint fbo, GLenum pname, GLint param);
+        void (GL_APIENTRY * glGetNamedFramebufferParameteriv)(GLuint fbo, GLenum pname, GLint *params);
+
         //subroutine
         GLint(GL_APIENTRY* glGetSubroutineUniformLocation) (GLuint program, GLenum shadertype, const GLchar *name);
         void (GL_APIENTRY * glGetActiveSubroutineUniformName) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufsize, GLsizei *length, GLchar *name);
@@ -680,8 +689,10 @@ class OSG_EXPORT GLExtensions : public osg::Referenced
         void (GL_APIENTRY * glDrawArraysIndirect) (GLenum  mode,  const void * indirect);
         void (GL_APIENTRY * glMultiDrawArraysIndirect) (GLenum mode, const void *indirect, GLsizei drawcount, GLsizei stride);
         void (GL_APIENTRY * glDrawElementsIndirect) (GLenum mode,  GLenum type,  const void *indirect);
-        void (GL_APIENTRY * glMultiDrawElementsIndirect)(     GLenum mode,      GLenum type,      const void *indirect,      GLsizei drawcount,      GLsizei stride);
+        void (GL_APIENTRY * glMultiDrawElementsIndirect)(GLenum mode, GLenum type, const void *indirect, GLsizei drawcount, GLsizei stride);
 
+        // ARB_sparse_texture
+        void (GL_APIENTRY * glTexPageCommitment) (GLenum target, GLint level,GLint xoffset,GLint yoffset,GLint zoffset, GLsizei width, GLsizei height, GLsizei depth,GLboolean commit);
 
         // Transform feedback
         void (GL_APIENTRY * glBeginTransformFeedback) (GLenum primitiveMode);
@@ -710,6 +721,7 @@ class OSG_EXPORT GLExtensions : public osg::Referenced
         void (GL_APIENTRY * glGenVertexArrays) (GLsizei size, GLuint *handles);
         GLboolean (GL_APIENTRY * glIsVertexArray) (GLuint handle);
         void (GL_APIENTRY * glBindVertexArray) (GLuint handle);
+
         // OpenGL 4.3 / ARB_vertex_attrib_binding
         bool isVertexAttribBindingSupported;
         void (GL_APIENTRY * glBindVertexBuffer)(GLuint bindingindex, GLuint buffer, GLintptr offset, GLintptr stride);
diff --git a/src/osg/GLExtensions.cpp b/src/osg/GLExtensions.cpp
index 507f42e5b..0e5d99274 100644
--- a/src/osg/GLExtensions.cpp
+++ b/src/osg/GLExtensions.cpp
@@ -946,6 +946,9 @@ GLExtensions::GLExtensions(unsigned int in_contextID):
 
     setGLExtensionFuncPtr(glTexImage3D, "glTexImage3D","glTexImage3DEXT", validContext);
     setGLExtensionFuncPtr(glTexSubImage3D, "glTexSubImage3D","glTexSubImage3DEXT", validContext);
+    setGLExtensionFuncPtr(glTexStorage3D, "glTexStorage3D","glTexStorage3DEXT", validContext);
+    setGLExtensionFuncPtr(glTextureStorage3D, "glTextureStorage3D","glTextureStorage3DEXT", validContext);
+
     setGLExtensionFuncPtr(glCompressedTexImage3D, "glCompressedTexImage3D","glCompressedTexImage3DARB", validContext);
     setGLExtensionFuncPtr(glCompressedTexSubImage3D, "glCompressedTexSubImage3D","glCompressedTexSubImage3DARB", validContext);
 
@@ -1086,11 +1089,19 @@ GLExtensions::GLExtensions(unsigned int in_contextID):
     setGLExtensionFuncPtr(glFramebufferTextureLayer, "glFramebufferTextureLayer", "glFramebufferTextureLayerEXT", "glFramebufferTextureLayerOES", validContext);
     setGLExtensionFuncPtr(glFramebufferTextureFace,  "glFramebufferTextureFace", "glFramebufferTextureFaceEXT", "glFramebufferTextureFaceOES" , validContext);
     setGLExtensionFuncPtr(glFramebufferRenderbuffer, "glFramebufferRenderbuffer", "glFramebufferRenderbufferEXT", "glFramebufferRenderbufferOES", validContext);
+    //ARB_framebuffer_no_attachments
+    //OpenGL 4.3
+    setGLExtensionFuncPtr(glFramebufferParameteri, "glFramebufferParameteri", "glFramebufferParameteriARB", "glFramebufferParameteriOES", validContext);
+    setGLExtensionFuncPtr(glGetFramebufferParameteriv, "glGetFramebufferParameteriv", "glGetFramebufferParameterivARB", "glGetFramebufferParameterivOES", validContext);
+    //OpenGL 4.5 (EXT_direct_state_access required)
+    setGLExtensionFuncPtr(glNamedFramebufferParameteri, "glNamedFramebufferParameteri", "glNamedFramebufferParameteriEXT", "glNamedFramebufferParameteriOES", validContext);
+    setGLExtensionFuncPtr(glGetNamedFramebufferParameteriv, "glGetNamedFramebufferParameteriv", "glGetNamedFramebufferParameterivEXT", "glGetNamedFramebufferParameterivOES", validContext);
 
     setGLExtensionFuncPtr(glGenerateMipmap, "glGenerateMipmap", "glGenerateMipmapEXT", "glGenerateMipmapOES", validContext);
     setGLExtensionFuncPtr(glBlitFramebuffer, "glBlitFramebuffer", "glBlitFramebufferEXT", "glBlitFramebufferOES", validContext);
     setGLExtensionFuncPtr(glGetRenderbufferParameteriv, "glGetRenderbufferParameteriv", "glGetRenderbufferParameterivEXT", "glGetRenderbufferParameterivOES", validContext);
 
+
     isFrameBufferObjectSupported =
         glBindRenderbuffer != 0 &&
         glDeleteRenderbuffers != 0 &&
@@ -1137,6 +1148,9 @@ GLExtensions::GLExtensions(unsigned int in_contextID):
     osg::setGLExtensionFuncPtr(glDrawElementsIndirect, "glDrawElementsIndirect", "glDrawElementsIndirectEXT", validContext);
     osg::setGLExtensionFuncPtr(glMultiDrawElementsIndirect, "glMultiDrawElementsIndirect", "glMultiDrawElementsIndirectEXT", validContext);
 
+    // ARB_sparse_texture
+    osg::setGLExtensionFuncPtr(glTexPageCommitment, "glTexPageCommitment","glTexPageCommitmentARB", "glTexPageCommitmentEXT", validContext);
+
     // Transform Feeedback
     osg::setGLExtensionFuncPtr(glBeginTransformFeedback, "glBeginTransformFeedback", "glBeginTransformFeedbackEXT", validContext);
     osg::setGLExtensionFuncPtr(glEndTransformFeedback, "glEndTransformFeedback", "glEndTransformFeedbackEXT", validContext);