From 0dd9ce044bbb30a6a8a00f8be68f1cbc3acf291d Mon Sep 17 00:00:00 2001
From: Mike Smith <mango@live.cn>
Date: Fri, 24 May 2024 23:08:39 +0800
Subject: [PATCH] add button

---
 src/films/display.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/films/display.cpp b/src/films/display.cpp
index caa0f68b..01076e5b 100644
--- a/src/films/display.cpp
+++ b/src/films/display.cpp
@@ -246,6 +246,8 @@ class DisplayInstance final : public Film::Instance {
         {
             ImGui::Text("Display FPS: %.2f", ImGui::GetIO().Framerate);
             ImGui::SliderFloat("Exposure", &_exposure, -10.f, 10.f);
+            ImGui::SameLine();
+            if (ImGui::Button("Reset")) { _exposure = 0.f; }
             constexpr const char *const tone_mapping_names[] = {"None", "Uncharted2", "ACES"};
             ImGui::Combo("Tone Mapping", &_tone_mapping, tone_mapping_names, std::size(tone_mapping_names));
             constexpr const char *const fit_names[] = {"Fill", "Fit", "Stretch"};