added settings file for easier config

data/config/planets/earth.json

+{
+  "shaders": "planets/earth",
+  "atmosphere": true,
+  "water": true,
+  "moons": 1
+}
\ No newline at end of file

data/config/planets/jupiter.json

+{
+  "shaders": "planets/jupiter",
+  "atmosphere": false,
+  "water": false,
+  "moons": 3
+}
\ No newline at end of file

data/config/planets/mars.json

+{
+  "shaders": "planets/mars",
+  "atmosphere": false,
+  "water": false,
+  "moons": 0
+}
\ No newline at end of file

data/config/settings.json

+{
+  "resolution": [1280, 720],
+  "target_fps": 60,
+  "fullscreen": false,
+  "quality": "high",
+  "available_planet_prefabs": [
+    "earth",
+    "mars",
+    "jupiter"
+  ],
+  "scene": "AtmosphereTest"
+}
\ No newline at end of file

data/shader/TXAA.fsh

@@ -33,13 +33,11 @@ void main()
 	    depth = depthSample;
     }
   }
-  
-  vec4 history = texture(uSamplerHistory, vTexCoord - motion.xy);  
-  
   float factor = 0.85;
-  
+  vec4 history = texture(uSamplerHistory, vTexCoord - motion);  
   vec4 current = texture(uSamplerColor, vTexCoord);
   
+
   vec4 minNeighbour = current;
   vec4 maxNeighbour = current;
   

data/shader/WaterSurface.fsh

@@ -9,7 +9,7 @@
 
 #pragma import "CommonDeferredFrag.glsl"
 
-#pragma import "planets/earth_texture.glsl"
+#pragma import "planets/earth/earth_texture.glsl"
 #pragma import "terrain/generic_water_texture.glsl"
 
 #pragma import "terrain/dispMappingWithWater_fsh.glsl"

data/shader/planets/earth.fsh

-#version 410 core
-
-#pragma import "../setup/geometry.glsl"
-
-#pragma import "../noise/noise3d.glsl"
-#pragma import "../noise/noise4d.glsl"
-
-#pragma import "../Utils.glsl"
-
-#pragma import "../CommonDeferredFrag.glsl"
-
-#pragma import "earth_texture.glsl"
-#pragma import "../terrain/generic_water_texture.glsl"
-
-#pragma import "../terrain/dispMappingWithWater_fsh.glsl"

data/shader/planets/earth.gsh

-#pragma import "../terrain/dispMapping_gsh.glsl"

data/shader/planets/earth.tcsh

-#pragma import "../terrain/dispMapping_tcsh.glsl"

data/shader/planets/earth.tesh

-
-#pragma import "../noise/noise3d.glsl"
-#pragma import "../Utils.glsl"
-
-#pragma import "earth_texture.glsl"
-#pragma import "../terrain/dispMapping_tesh.glsl"

data/shader/planets/earth.vsh

-#pragma import "../terrain/dispMapping_vsh.glsl"

data/shader/planets/earth/earth.fsh

+#version 410 core
+
+#pragma import "../../setup/geometry.glsl"
+
+#pragma import "../../noise/noise3d.glsl"
+#pragma import "../../noise/noise4d.glsl"
+
+#pragma import "../../Utils.glsl"
+
+#pragma import "../../CommonDeferredFrag.glsl"
+
+#pragma import "earth_texture.glsl"
+#pragma import "../../terrain/generic_water_texture.glsl"
+
+#pragma import "../../terrain/dispMappingWithWater_fsh.glsl"

data/shader/planets/earth/earth.gsh

+#pragma import "../../terrain/dispMapping_gsh.glsl"

data/shader/planets/earth/earth.tcsh

+#pragma import "../../terrain/dispMapping_tcsh.glsl"

data/shader/planets/earth/earth.tesh

+
+#pragma import "../../noise/noise3d.glsl"
+#pragma import "../../Utils.glsl"
+
+#pragma import "earth_texture.glsl"
+#pragma import "../../terrain/dispMapping_tesh.glsl"

data/shader/planets/earth/earth.vsh

+#pragma import "../../terrain/dispMapping_vsh.glsl"

data/shader/planets/jupiter.fsh

-#version 410 core
-
-#pragma import "../setup/geometry.glsl"
-
-#pragma import "../CommonDeferredFrag.glsl"
-
-#pragma import "gas_texture.glsl"
-
-#pragma import "../terrain/plainSphere_fsh.glsl"

data/shader/planets/jupiter.gsh

-#pragma import "../terrain/plainSphere_gsh.glsl"

data/shader/planets/jupiter.tcsh

-#pragma import "../terrain/plainSphere_tcsh.glsl"

data/shader/planets/jupiter.tesh

-
-#pragma import "../terrain/plainSphere_tesh.glsl"

data/shader/planets/jupiter.vsh

-#pragma import "../terrain/plainSphere_vsh.glsl"

data/shader/planets/jupiter/jupiter.fsh

+#version 410 core
+
+#pragma import "../../setup/geometry.glsl"
+
+#pragma import "../../CommonDeferredFrag.glsl"
+
+#pragma import "jupiter_texture.glsl"
+
+#pragma import "../../terrain/plainSphere_fsh.glsl"

data/shader/planets/jupiter/jupiter.gsh

+#pragma import "../../terrain/plainSphere_gsh.glsl"

data/shader/planets/jupiter/jupiter.tcsh

+#pragma import "../../terrain/plainSphere_tcsh.glsl"

data/shader/planets/jupiter/jupiter.tesh

+#pragma import "../../terrain/plainSphere_tesh.glsl"

data/shader/planets/jupiter/jupiter.vsh

+#pragma import "../../terrain/plainSphere_vsh.glsl"

data/shader/planets/gas_texture.glsl → data/shader/planets/jupiter/jupiter_texture.glsl

-#pragma import "../noise/noise3d.glsl"
-#pragma import "../noise/noise2d.glsl"
+#pragma import "../../noise/noise3d.glsl"
+#pragma import "../../noise/noise2d.glsl"
 
 
 //float getHeightNoise(vec3 normalizedPosInModelspace) {

data/shader/planets/mars/mars.gsh

+#pragma import "../../terrain/dispMapping_gsh.glsl"

data/shader/planets/mars/mars.tcsh

+#pragma import "../../terrain/dispMapping_tcsh.glsl"

data/shader/planets/mars/mars.tesh

+#pragma import "../../noise/noise3d.glsl"
+#pragma import "../../Utils.glsl"
+
+#pragma import "mars_texture.glsl"
+#pragma import "../../terrain/dispMapping_tesh.glsl"

data/shader/planets/mars/mars.vsh

+#pragma import "../../terrain/dispMapping_vsh.glsl"

data/shader/planets/mars/mars_texture.glsl

+float getContinentHeightNoise(vec3 normalizedPosInModelspace) {
+    return 2*(fbm_3d(normalizedPosInModelspace , 2, 1.25));
+}
+float getRidgedHeightNoise(vec3 normalizedPosInModelspace) {
+    return (.75 - abs(fbm_3d( normalizedPosInModelspace , 2, 40.)))/2.;
+}
+float getDetailHeightNoise(vec3 normalizedPosInModelspace) {
+    return fbm_3d( normalizedPosInModelspace , 2, 160.)/8.;
+}
+float getRidgedDetailsHeightNoise(vec3 normalizedPosInModelspace) {
+    return (.75 - abs(fbm_3d( normalizedPosInModelspace , 4, 8*640.)))/256.;
+}
+
+float getHeightNoise(vec3 normalizedPosInModelspace) {
+    return (getContinentHeightNoise(normalizedPosInModelspace)
+            + getRidgedHeightNoise(normalizedPosInModelspace)
+            + getDetailHeightNoise(normalizedPosInModelspace)
+            + getRidgedDetailsHeightNoise(normalizedPosInModelspace))
+            * 2.;
+}
+
+#define SNOW_LEVEL .5
+#define ROCK_LEVEL .3
+#define PLANT_LEVEL .03
+
+#define ROCK_SLOPE .6
+
+vec4 texture_getColor(vec3 texCoord3d, vec3 upVectorNormalized, vec3 normalNormalized, float depth){
+    //float noiseVal1 = fbm_3d( texCoord3d,4, 128.*128.);// * 0.05;
+    float noiseOct1 = 0.;
+    float noiseOct2 = 0.;
+    float noiseOct3 = 0.;
+    float noiseOct4 = 0.;
+    float noiseOct5 = 0.;
+
+    noiseOct1 = snoise_3d(32.*128. * texCoord3d);
+    noiseOct2 = snoise_3d(64.*128. * texCoord3d);
+    noiseOct3 = snoise_3d(128.*128. * texCoord3d);
+    
+    float heightPertubation = 1./2.*noiseOct1 + 1./4.*noiseOct2 + 1./8.*noiseOct3;
+    vec4 color = vec4(1., 1., 1., 1.);
+
+    float height =getHeightNoise(texCoord3d)/2.*.9 + heightPertubation * .1;
+
+    float dt = dot(normalNormalized, upVectorNormalized);
+    float cs = dt / (length(normalNormalized) * length(upVectorNormalized));
+    float phi = acos(dt);
+    float phiNormalized = 2*phi / M_PI; //scale results from [0, M_PI/2] to [0, 1]
+
+    float phiPertubation = 1./2.*noiseOct4 + 1./4.*noiseOct5;
+    float phiPert = .9*phiNormalized + .1 * phiPertubation;
+
+
+    if (height> SNOW_LEVEL && phiPert <= ROCK_SLOPE) {
+        color = vec4(1., 1., 1., 1.);
+
+    } else if (height> ROCK_LEVEL || phiPert > ROCK_SLOPE) {
+        color = vec4(.1, .1, .1, 1.);
+
+    } else if (height> PLANT_LEVEL) {
+        color = vec4(.2, .5,.15, 1.);
+    }else { //"sand""
+        color = vec4(1., .8, .55, 1.);
+    }
+    return color;
+}
+
+vec4 texture_getColor(vec3 texCoord3d, vec3 upVectorNormalized, vec3 normalNormalized){
+    return texture_getColor(texCoord3d, upVectorNormalized, normalNormalized, 1.);
+}
+
+float texture_getFinalHeight(vec3 normalizedPosInModelspace){
+    return 0.008 * getHeightNoise(normalizedPosInModelspace);
+}
+
+vec3 texture_getDisplacedPosition_modelspace(vec3 normalizedPosInModelspace, vec3 normalizedNormal) {
+    vec3 newPosition = normalizedPosInModelspace + normalizedNormal * texture_getFinalHeight(normalizedPosInModelspace);
+    return newPosition;
+}
+
+

data/shader/planets/moon.fsh

-#version 410 core
-
-#pragma import "../setup/geometry.glsl"
-
-#pragma import "../noise/noise3d.glsl"
-#pragma import "../Utils.glsl"
-
-#pragma import "../CommonDeferredFrag.glsl"
-
-#pragma import "moon_texture.glsl"
-
-#pragma import "../terrain/dispMapping_fsh.glsl"

data/shader/planets/moon.gsh

-#pragma import "../terrain/dispMapping_gsh.glsl"

data/shader/planets/moon.tcsh

-#pragma import "../terrain/dispMapping_tcsh.glsl"

data/shader/planets/moon.tesh

-#pragma import "../noise/noise3d.glsl"
-
-#pragma import "../Utils.glsl"
-
-#pragma import "earth_texture.glsl"
-#pragma import "../terrain/dispMapping_tesh.glsl"

data/shader/planets/moon.vsh

-#pragma import "../terrain/dispMapping_vsh.glsl"

data/shader/planets/moon/moon.fsh

+#version 410 core
+
+#pragma import "../../setup/geometry.glsl"
+
+#pragma import "../../noise/noise3d.glsl"
+#pragma import "../../Utils.glsl"
+
+#pragma import "../../CommonDeferredFrag.glsl"
+
+#pragma import "moon_texture.glsl"
+
+#pragma import "../../terrain/dispMapping_fsh.glsl"

data/shader/planets/moon/moon.gsh

+#pragma import "../../terrain/dispMapping_gsh.glsl"

data/shader/planets/moon/moon.tcsh

+#pragma import "../../terrain/dispMapping_tcsh.glsl"

data/shader/planets/moon/moon.tesh

+#pragma import "../../noise/noise3d.glsl"
+
+#pragma import "../../Utils.glsl"
+
+#pragma import "../earth/earth_texture.glsl"
+#pragma import "../../terrain/dispMapping_tesh.glsl"

data/shader/planets/moon/moon.vsh

+#pragma import "../../terrain/dispMapping_vsh.glsl"

run.bat

-"build\src\game\RelWithDebInfo\game.exe" AtmosphereTest ""
+"build\src\game\RelWithDebInfo\game.exe" "config/settings.json"

run.sh

-./build/src/game/game AtmosphereTest ""
+./build/src/game/game "config/settings.json"

src/game/include/engine/core/GameLoopSystem.hpp

@@ -5,12 +5,14 @@
 #include <engine/graphics/RendererSystem.hpp>
 #include <engine/audio/AudioSystem.hpp>
 #include <engine/events/EventSystem.hpp>
+#include <engine/core/SettingsSystem.hpp>
 #include <engine/core/SimulateEvent.hpp>
 
 #include <array>
 
 class GameLoopSystem : public System {
 private:
+  SettingsSystem* m_settings;
   EventSystem* m_events;
   WindowSystem* m_window;
   RendererSystem* m_renderer;

src/game/include/engine/core/SettingsSystem.hpp

 #pragma once
 #include <engine/core/Context.hpp>
 #include <engine/core/System.hpp>
+#include <ACGL/Math/Math.hh>
+
+enum class QualitySetting {
+  Low,
+  Medium,
+  High
+};
+
+struct PlanetMetaData {
+  std::string name;
+  std::string shaders;
+  bool hasAtmosphere;
+  bool hasWater;
+  uint64_t moonCount;
+};
+
 
 class SettingsSystem : public System {
 private:
@@ -10,19 +26,38 @@ private:
   std::string m_shaderPath;
   std::string m_soundPath;
 
+  std::string m_configFilePath;
+
+  std::vector<PlanetMetaData> m_availablePlanets;
+
+  glm::ivec2 m_resolution;
+  QualitySetting m_qualitySetting;
+  bool m_fullscreen;
+  uint64_t m_targetFps;
+  std::string m_defaultScene;
+
 public:
   CONSTRUCT_SYSTEM(SettingsSystem, std::string resourcePath,
                    std::string texturePath, std::string geometryPath,
-                   std::string shaderPath, std::string soundPath)
+                   std::string shaderPath, std::string soundPath, std::string configFilePath)
     , m_resourcePath(resourcePath), m_texturePath(texturePath),
       m_geometryPath(geometryPath), m_shaderPath(shaderPath),
-      m_soundPath(soundPath) {}
+      m_soundPath(soundPath) {
+
+    m_configFilePath = configFilePath;
+  }
 
   inline std::string getResourcePath() const { return m_resourcePath; }
   inline std::string getFullTexturePath() const { return m_resourcePath + m_texturePath; }
   inline std::string getFullGeometryPath() const { return m_resourcePath + m_geometryPath; }
   inline std::string getFullShaderPath() const { return m_resourcePath + m_shaderPath; }
   inline std::string getFullSoundPath() const { return m_resourcePath + m_soundPath; }
+  inline glm::ivec2 getResolution() const { return m_resolution; }
+  inline bool getFullscreen() const { return m_fullscreen; }
+  inline uint64_t getTargetFps() const { return m_targetFps; }
+  inline QualitySetting getQualitySetting() const { return m_qualitySetting; }
+  inline std::string getDefaultScene() const { return m_defaultScene; }
+  inline std::vector<PlanetMetaData> getAvailablePlanets() const { return m_availablePlanets; }
 
   bool startup() override;
   void shutdown() override;

src/game/include/engine/core/WindowSystem.hpp

 #pragma once
 #include <engine/core/Context.hpp>
 #include <engine/core/System.hpp>
+#include <engine/core/SettingsSystem.hpp>
 #include <SDL.h>
 #include <glm/glm.hpp>
 
 class WindowSystem : public System {
 private:
+  SettingsSystem* m_settings;
+
   void setSDLHintsForOpenGLVersion(unsigned int _version);
   bool createWindow();
 
   glm::uvec2 m_windowSize;
   SDL_Window *m_sdlWindow;
   SDL_GLContext m_glContext;
+  bool m_fullscreen;
 
 public:
-  CONSTRUCT_SYSTEM(WindowSystem, int windowWidth, int windowHeight) {
+  CONSTRUCT_SYSTEM(WindowSystem, int windowWidth, int windowHeight, bool fullscreen) {
     m_windowSize.x = windowWidth;
     m_windowSize.y = windowHeight;
+    m_fullscreen = fullscreen;
   }
 
   void setWindowTitle(const char* title);

src/game/include/engine/scene/OrbitalSimulationSystem.hpp

@@ -9,10 +9,13 @@
 #include <engine/scene/Planet.hpp>
 #include <vector>
 #include <engine/graphics/RendererSystem.hpp>
+#include <engine/core/SettingsSystem.hpp>
+
 
 
 class OrbitalSimulationSystem : public System {
 private:
+  SettingsSystem* m_settings;
 	EventSystem* m_events;
 	SceneGraphSystem *m_scene;
   RendererSystem *m_renderer;
@@ -22,9 +25,6 @@ private:
   Geometry orbitTorus;
   Geometry minimapItem;
 	
-  Material planetMat;
-  Material jupiterMat;
-  Material earthMat;
   Material moonMat;
 	Material trajectoryMat;
   Material atmosphereMat;
@@ -32,6 +32,7 @@ private:
   Material waterMat;
   Material minimapItemMaterial;
 
+  std::unordered_map<std::string, Material> planetMaterials;
 
 	std::vector<Entity> trajectories;  
 

src/game/src/engine/core/GameLoopSystem.cpp

@@ -13,11 +13,14 @@
 #include <engine/ui/UISystem.hpp>
 
 bool GameLoopSystem::startup() {
+  RESOLVE_DEPENDENCY(m_settings);
   RESOLVE_DEPENDENCY(m_events);
   RESOLVE_DEPENDENCY(m_window);
   RESOLVE_DEPENDENCY(m_renderer);
   RESOLVE_DEPENDENCY(m_audio);
 
+  m_targetFrameRate = m_settings->getTargetFps();
+
   m_events->subscribe<"DrawUI"_sh>([this] {
     static bool opened = true;
     ImGui::SetNextWindowPos(ImVec2(10, 10));

src/game/src/engine/core/SettingsSystem.cpp

@@ -2,14 +2,128 @@
 #include <ACGL/ACGL.hh>
 #include <ACGL/Base/Settings.hh>
 
+#define PICOJSON_USE_INT64
+#include <engine/utils/picojson.h>
+
+#include <fstream>
+
+
 using namespace ACGL::Base;
 
+std::string getDirectory(std::string filename) {
+  size_t found;
+  found = filename.find_last_of("/\\");
+  return filename.substr(0, found);
+}
+
 bool SettingsSystem::startup() {
   Settings::the()->setResourcePath(m_resourcePath);
   Settings::the()->setTexturePath(m_texturePath);
   Settings::the()->setGeometryPath(m_geometryPath);
   Settings::the()->setShaderPath(m_shaderPath);
 
+  
+  std::ifstream configFile(m_resourcePath + m_configFilePath);
+
+  if (!configFile.is_open()) {
+    std::cerr << "Could not open config file " << m_configFilePath << "!" << std::endl;
+    return false;
+  }
+
+  picojson::value config;
+  configFile >> config;
+
+  if (!config.is<picojson::object>()) {
+    std::cerr << "Could not read config file " << m_configFilePath << "!" << std::endl;
+    return false;
+  }
+
+  const picojson::object& o = config.get<picojson::object>();
+
+  m_availablePlanets = { };
+  m_resolution = { 1280, 720 };
+  m_qualitySetting = QualitySetting::High;
+  m_fullscreen = false;
+  m_targetFps = 60;
+  m_defaultScene = "AtmosphereTest";
+
+#define VALIDATE_TYPE(p, type) if(!p.second.is<type>()) { std::cout << "Warning: Setting \"" << i.first << "\": " << i.second << " is not of expected type " #type "." << std::endl; continue; }
+
+  for (auto& i : o) {
+    if (i.first == "available_planet_prefabs") {
+      VALIDATE_TYPE(i, picojson::array);
+      const picojson::array& planets = i.second.get<picojson::array>();
+      m_availablePlanets.clear();
+      for (auto& planet : planets) {
+
+        auto planetName = planet.get<std::string>();
+        std::string fullPath = m_resourcePath + getDirectory(m_configFilePath) + "/planets/" + planetName + ".json";
+        std::ifstream planetFile(fullPath);
+
+        if (!planetFile.is_open()) {
+          std::cerr << "Could not open planet file " << fullPath << "!" << std::endl;
+          continue;
+        }
+
+        picojson::value planetVal;
+        planetFile >> planetVal;
+
+        if (!planetVal.is<picojson::object>()) {
+          std::cerr << "Could not read planet file " << fullPath << "!" << std::endl;
+          return false;
+        }
+
+        const picojson::object& planetObj = planetVal.get<picojson::object>();
+
+
+        PlanetMetaData planet;
+        planet.name = planetName;
+        for (auto& prop : planetObj) {
+          if (prop.first == "shaders") {
+            VALIDATE_TYPE(prop, std::string);
+            planet.shaders = prop.second.get<std::string>();
+          } else if (prop.first == "atmopshere") {
+            VALIDATE_TYPE(prop, bool);
+            planet.hasAtmosphere = prop.second.get<bool>();
+          } else if (prop.first == "water") {