Add invert effect

Weather-etc · Jul 24, 2022 · aa29769 · aa29769
1 parent c4ce669
commit aa29769
Show file tree

Hide file tree

Showing 6 changed files with 39 additions and 7 deletions.
diff --git a/assets/shaders/invert_effect.frag b/assets/shaders/invert_effect.frag
@@ -0,0 +1,12 @@
+#version 450 core
+
+uniform sampler2D colorTexture;
+uniform float intensity = 2;
+uniform float start = 2.0f;
+
+layout(location = 0) out vec4 color;
+
+void main() {
+    vec4 pixel = texelFetch(colorTexture, ivec2(gl_FragCoord.xy), 0);
+    color = vec4(vec3(1) - pixel.xyz, pixel.w);
+}
diff --git a/assets/shaders/invert_effect.vert b/assets/shaders/invert_effect.vert
@@ -0,0 +1,7 @@
+#version 450 core
+
+layout(location = 0) in vec3 position;
+
+void main() {
+    gl_Position = vec4(position, 1);
+}
diff --git a/src/Application/Window.cpp b/src/Application/Window.cpp
@@ -127,7 +127,7 @@ void Window::beginFrame() {
 void Window::resetFrame() {
   glViewport(0, 0, windowWidth, windowHeight);
   glClearColor(clearColor.x * clearColor.w, clearColor.y * clearColor.w, clearColor.z * clearColor.w, clearColor.w);
-  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
 }
 
 void Window::finalizeFrame() {
@@ -148,7 +148,7 @@ void GLAPIENTRY Window::onOpenGlMessage(GLenum source,
                                         GLsizei,
                                         const GLchar *message,
                                         const void *) {
-  if (id == 131185 || id == 131218 || id == 131169) {
+  if (id == 131185 || id == 131218 || id == 131169 || id == 131076 || id == 131204) {
     return;
   }
 

diff --git a/src/Rendering/ColorRenderPass.cpp b/src/Rendering/ColorRenderPass.cpp
@@ -20,6 +20,8 @@ void ColorRenderPass::render() {
 void ColorRenderPass::renderTextureWithEffect(const Ref<Texture>& texture, const Ref<const ShaderProgram>& effect) {
   ColorRenderPass renderPass(effect);
   renderPass.setTexture("colorTexture", texture, 0);
+
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
   renderPass.render();
 }
 

diff --git a/src/Scene/Scene.cpp b/src/Scene/Scene.cpp
@@ -8,7 +8,8 @@ Scene::Scene(const std::string& savePath)
     : persistence(std::make_shared<Persistence>(savePath)),
       world(std::make_shared<World>(persistence)),
       player(world, persistence),
-      vignetteEffect(AssetManager::instance().loadShaderProgram("assets/shaders/vignette_effect")) {
+      vignetteEffect(AssetManager::instance().loadShaderProgram("assets/shaders/vignette_effect")),
+      invertEffect(AssetManager::instance().loadShaderProgram("assets/shaders/invert_effect")) {
   onResized(Application::instance().getWindowWidth(), Application::instance().getWindowHeight());
   updateMouse();
 }
@@ -51,7 +52,10 @@ void Scene::render() {
   }
 
   crosshair.render();
-  if (enableVignette) {
+  if (enableInvertEffect) {
+    invertEffect.render();
+  }
+  if (enableVignetteEffect) {
     vignetteEffect.getShader()->setFloat("intensity", vignetteIntensity);
     vignetteEffect.getShader()->setFloat("start", vignetteStart);
     vignetteEffect.render();
@@ -88,9 +92,14 @@ void Scene::renderMenu() {
     ImGui::Spacing();
     ImGui::Spacing();
 
-    ImGui::Checkbox("Enable vignette effect", &enableVignette);
+    ImGui::Checkbox("Enable invert effect", &enableInvertEffect);
+
+    ImGui::Spacing();
+    ImGui::Spacing();
+
+    ImGui::Checkbox("Enable vignette effect", &enableVignetteEffect);
 
-    if (enableVignette) {
+    if (enableVignetteEffect) {
       float invertedIntensity = 4 - vignetteIntensity;
       if (ImGui::SliderFloat("Vignette intensity", &invertedIntensity, 1, 3)) {
         vignetteIntensity = 4 - invertedIntensity;

diff --git a/src/Scene/Scene.h b/src/Scene/Scene.h
@@ -29,11 +29,13 @@ class Scene {
   Crosshair crosshair;
   BlockOutline outline;
   PostProcessEffect vignetteEffect;
+  PostProcessEffect invertEffect;
 
   bool isMenuOpen = false;
   bool showIntermediateTextures = false;
   bool enableXRay = false;
-  bool enableVignette = true;
+  bool enableVignetteEffect = true;
+  bool enableInvertEffect = false;
   float vignetteIntensity = 2.9;
   float vignetteStart = 1.5f;