context reinit support

tonemapping_proc.cpp

@@ -48,6 +48,9 @@ TonemappingProc::~TonemappingProc() {
 
 
 void TonemappingProc::init() {
+	buffer_vbo.reinit();
+	fbo_1x1.reinit();
+	fbomm.reinit();
 	QOpenGLExtraFunctions * f = r->view;
 	buffer_vbo.init(f);
 	f->glGenVertexArrays(1, &vbo_vao);