From c59c62abd1e3c119bc2e3765eb2993fe607a1d94 Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Mon, 15 Aug 2022 17:09:13 +1000
Subject: [PATCH] move color grading to FilamentViewer constructor

---
 ios/src/FilamentViewer.cpp | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/ios/src/FilamentViewer.cpp b/ios/src/FilamentViewer.cpp
index 7717a511..e5cb8a01 100644
--- a/ios/src/FilamentViewer.cpp
+++ b/ios/src/FilamentViewer.cpp
@@ -137,6 +137,12 @@ FilamentViewer::FilamentViewer(void *layer, LoadResource loadResource,
   _view->setScene(_scene);
   _view->setCamera(_mainCamera);
 
+  ToneMapper *tm = new LinearToneMapper();
+  colorGrading = ColorGrading::Builder().toneMapper(tm).build(*_engine);
+  delete tm;
+
+  _view->setColorGrading(colorGrading);
+
   _cameraFocalLength = 28.0f;
   _mainCamera->setExposure(kAperture, kShutterSpeed, kSensitivity);
 
@@ -260,15 +266,6 @@ void FilamentViewer::createImageRenderable() {
 
 void FilamentViewer::setBackgroundImage(const char *resourcePath) {
 
-  if (colorGrading) {
-    _engine->destroy(colorGrading);
-  }
-  ToneMapper *tm = new LinearToneMapper();
-  colorGrading = ColorGrading::Builder().toneMapper(tm).build(*_engine);
-  delete tm;
-
-  _view->setColorGrading(colorGrading);
-
   createImageRenderable();
 
   if (_imageTexture) {