skybox reflects time of day

assets/Shaders/entities/skysphere/skysphere.fs

@@ -3,90 +3,45 @@
 #version 450 core
 #extension GL_ARB_shading_language_include : require
 #include "../../lib/standarduniform.fs"
+#include "../../lib/math.fs"
 
 
-/**
-Bind points for different SSBOs
-*/
-#define DIRECT_LIGHT_SSBO_BIND_POINT 3
-
 /**
 transparency
 */
 #define SMALL_EPSILON 0.001
 
-/**
+#define EASING_POWER 5
-The direct global light
-*/
-struct DirectLight {
-    vec3 direction;
-    vec3 color;
-    vec3 ambientColor;
-};
-
-
-out vec4 FragColor;
-
-layout(std430, binding = DIRECT_LIGHT_SSBO_BIND_POINT) restrict buffer dirLightSSBO {
-    DirectLight directLight;
-};
-
-struct Material {
-    sampler2D diffuse;
-    sampler2D specular;
-    float shininess;
-}; 
 
 
 in vec3 FragPos;
 in vec3 Normal;
-in vec2 TexCoord;
-in vec4 FragPosLightSpace;
 
 uniform vec3 viewPos;
-uniform Material material;
-
-//texture stuff
-// uniform sampler2D ourTexture;
-uniform int hasTransparency;
-// uniform sampler2D specularTexture;
 
 //light depth map
 uniform sampler2D shadowMap;
 
-// function prototypes
+out vec4 FragColor;
-float calcLightIntensityTotal(vec3 normal);
 
 
 void main(){
-    if(hasTransparency == 1){
-        if(texture(material.diffuse, TexCoord).a < 0.1){
-            discard;
-        }
-    }
-    vec4 textureColor = texture(material.diffuse, TexCoord);
-
     //grab light intensity
     vec3 norm = normalize(Normal);
-    vec3 lightIntensity = vec3(calcLightIntensityTotal(norm));
+
+    //colors for different times of day
+    vec3 color1 = vec3(0,0,0);
+    vec3 color2= vec3(0.68,0.93,0.93);
+
+    //calculate color
+    float timeOfDay = standardUniforms.timeOfDay;
+    vec3 skyColor = mix(
+        color1,
+        color2,
+        abs((0.5 - timeOfDay)) * 2
+    );
 
     //calculate final color
-    vec3 finalColor = textureColor.rgb * lightIntensity;
+    vec3 finalColor = skyColor;//norm.rgb;
-    FragColor = vec4(finalColor, textureColor.a);
+    FragColor = vec4(finalColor, 1);
 }
-
-float calcLightIntensityAmbient(){
-    //calculate average of ambient light
-    float avg = (directLight.color.x + directLight.color.y + directLight.color.z)/3.0;
-    return avg;
-}
-
-//
-float calcLightIntensityTotal(vec3 normal){
-    //ambient intensity
-    float ambientLightIntensity = calcLightIntensityAmbient();
-
-    //sum
-    float total = ambientLightIntensity;
-    return total;
-}

assets/Shaders/entities/skysphere/skysphere.vs

@@ -18,9 +18,6 @@ uniform mat4 model;
 //output buffers
 out vec3 Normal;
 out vec3 FragPos;
-out vec3 ViewFragPos;
-out vec2 TexCoord;
-out vec4 FragPosLightSpace;
 
 
 
@@ -30,16 +27,18 @@ void main() {
     vec4 FinalVertex = vec4(aPos, 1.0);
     vec4 FinalNormal = vec4(aNormal, 1.0);
 
+    //time-of-day normal rotation
+    float angle = 3.14 * standardUniforms.timeOfDay;
+    mat4  rotationAboutZ = mat4(
+    vec4( cos(angle), -sin(angle), 0.0,  0.0 ),
+    vec4( sin(angle), cos(angle),  0.0,  0.0 ),
+    vec4( 0.0,        0.0,         1.0,  0.0 ),
+    vec4( 0.0,        0.0,         0.0,  1.0 ) ); 
+
 
     //push frag, normal, and texture positions to fragment shader
     FragPos = vec3(model * FinalVertex);
-    ViewFragPos = vec3(standardUniforms.view * model * FinalVertex);
+    Normal = mat3(transpose(inverse(model))) * mat3(rotationAboutZ) * aNormal;
-    Normal = mat3(transpose(inverse(model))) * aNormal;
-    TexCoord = aTex;
-
-
-    //shadow map stuff
-    FragPosLightSpace = standardUniforms.lightSpaceMatrix * vec4(FragPos, 1.0);
 
     
     //set final position with opengl space

assets/Shaders/lib/math.fs

@@ -0,0 +1,18 @@
+
+/**
+  * Standard math functions
+  */
+
+/**
+  * Eases in a value at a given power
+  */
+float easeInPow(float value, int power){
+    return pow(value,power);
+}
+
+/**
+  * Eases in a value at a given power
+  */
+float easeOutPow(float value, int power){
+    return 1.0f - pow(value,power);
+}

assets/Shaders/lib/standarduniform.fs

@@ -32,6 +32,10 @@ struct StandardUniforms {
       * The current engine time
       */
     float time;
+    /**
+      * The time of day of the engine (range 0->1)
+      */
+    float timeOfDay;
 };
 
 /**

docs/src/progress/renderertodo.md

@@ -2082,6 +2082,7 @@ Bounding sphere work
 Don't allocate contact joints for geom-geom
 Remove potential collision engine footgun
 Synchronized time-of-day between server and client
+Skybox reflects time of day
 
 
 

src/main/java/electrosphere/client/service/ClientTemporalService.java

@@ -60,5 +60,13 @@ public class ClientTemporalService extends SignalServiceImpl {
         this.latestServerData = serverData;
         lock.unlock();
     }
+
+    /**
+     * Gets the time of day of the service
+     * @return The time of day of the service
+     */
+    public float getTime(){
+        return (float)((double)clientTemporalData.getTime() / (double)MacroTemporalData.TIME_PER_DAY) % 1.0f;
+    }
     
 }

src/main/java/electrosphere/data/macro/temporal/MacroTemporalData.java

@@ -8,7 +8,7 @@ public class MacroTemporalData {
     /**
      * Amount of time per day
      */
-    public static final long TIME_PER_DAY = 60 * 60 * 30;
+    public static final long TIME_PER_DAY = 60 * 60 * 1;
 
     /**
      * The noon remainder amount

src/main/java/electrosphere/engine/assetmanager/AssetDataStrings.java

@@ -108,4 +108,10 @@ public class AssetDataStrings {
      */
     public static final String MODEL_WAYPOINT = "Models/engine/waypoint.glb";
 
+    /**
+     * Skybox
+     */
+    public static final String SHADER_SKYBOX_VERT = "Shaders/entities/skysphere/skysphere.vs";
+    public static final String SHADER_SKYBOX_FRAG = "Shaders/entities/skysphere/skysphere.fs";
+
 }

src/main/java/electrosphere/engine/loadingthreads/ClientLoading.java

@@ -19,6 +19,7 @@ import electrosphere.controls.ControlHandler;
 import electrosphere.controls.cursor.CursorState;
 import electrosphere.engine.EngineState;
 import electrosphere.engine.Globals;
+import electrosphere.engine.assetmanager.AssetDataStrings;
 import electrosphere.engine.signal.Signal.SignalType;
 import electrosphere.engine.threads.LabeledThread.ThreadLabel;
 import electrosphere.entity.DrawableUtils;
@@ -30,6 +31,7 @@ import electrosphere.net.NetUtils;
 import electrosphere.net.client.ClientNetworking;
 import electrosphere.net.parser.net.message.CharacterMessage;
 import electrosphere.net.parser.net.message.LoreMessage;
+import electrosphere.renderer.meshgen.GeometryMeshGen;
 
 public class ClientLoading {
     
@@ -49,6 +51,21 @@ public class ClientLoading {
      */
     private static final int MAX_DRAW_CELL_WAIT = 1000;
 
+    /**
+     * Slices in skysphere
+     */
+    private static final int SKYSPHERE_SLICES = 20;
+
+    /**
+     * stack in skysphere
+     */
+    private static final int SKYSPHERE_STACKS = 20;
+
+    /**
+     * Scale of skysphere
+     */
+    private static final float SKYSPHERE_SCALE = 5000.0f;
+
 
     /**
      * Loads the race data from the server
@@ -257,15 +274,19 @@ public class ClientLoading {
          * Skybox
          */
         Entity skybox = EntityCreationUtils.createClientSpatialEntity();
-        EntityCreationUtils.makeEntityDrawable(skybox, "Models/environment/skyboxSphere.fbx");
+        DrawableUtils.makeEntityDrawable(skybox, () -> {
+            return GeometryMeshGen.genSphere(SKYSPHERE_SLICES, SKYSPHERE_STACKS);
+        });
         DrawableUtils.disableCulling(skybox);
-        EntityUtils.getRotation(skybox).rotateX((float)(-Math.PI/2.0f));
+        EntityUtils.getScale(skybox).mul(SKYSPHERE_SCALE);
-        EntityUtils.getScale(skybox).mul(600000.0f);
         Globals.clientState.clientScene.registerBehaviorTree(() -> {
             EntityUtils.getPosition(skybox).set(EntityUtils.getPosition(Globals.clientState.playerEntity));
         });
-        Globals.assetManager.queueOverrideMeshShader("Models/environment/skyboxSphere.fbx", "Sphere", "Shaders/entities/skysphere/skysphere.vs", "Shaders/entities/skysphere/skysphere.fs");
+        Globals.assetManager.queueOverrideMeshShader(EntityUtils.getActor(skybox).getBaseModelPath(), GeometryMeshGen.SPHERE_MESH_NAME, AssetDataStrings.SHADER_SKYBOX_VERT, AssetDataStrings.SHADER_SKYBOX_FRAG);
 
+        /**
+         * Cursors
+         */
         CursorState.createCursorEntities();
     }
 

src/main/java/electrosphere/renderer/meshgen/GeometryMeshGen.java

@@ -23,6 +23,11 @@ import electrosphere.renderer.shader.VisualShader;
  * Routines for generating meshes of basic geometry
  */
 public class GeometryMeshGen {
+
+    /**
+     * Name of sphere mesh
+     */
+    public static final String SPHERE_MESH_NAME = "sphere";
     
     /**
      * Meshes a box
@@ -479,8 +484,8 @@ public class GeometryMeshGen {
      * @param stacks The number of stacks of the sphere
      * @return The model
      */
-    public static Mesh createUnitSphere(int slices, int stacks){
+    public static Mesh genSphere(int slices, int stacks){
-        Mesh sphereMesh = new Mesh("sphere");
+        Mesh sphereMesh = new Mesh(GeometryMeshGen.SPHERE_MESH_NAME);
         OpenGLState openGLState = Globals.renderingEngine.getOpenGLState();
         sphereMesh.generateVAO(openGLState);
         
@@ -515,6 +520,15 @@ public class GeometryMeshGen {
             sphereMesh.bufferTextureCoords(texCoordsFinal, 2);
         }
 
+        //normals
+        {
+            FloatBuffer normals = data.normals(numPoints * 3);
+            FloatBuffer normalsFinal = BufferUtils.createFloatBuffer(normals.limit()); //reallocating to BufferUtils buffer to help minimize memory errors
+            normalsFinal.put(normals);
+            normalsFinal.flip();
+            sphereMesh.bufferNormals(normalsFinal, 3);
+        }
+
 
         //setup extra structures
         Material mat = Material.createExisting(AssetDataStrings.TEXTURE_TEAL_TRANSPARENT);

src/main/java/electrosphere/renderer/shader/StandardUniformManager.java

@@ -24,7 +24,7 @@ public class StandardUniformManager {
     /**
      * Size of the standard uniform ssbo
      */
-    public static final int STANDARD_UNIFORM_SSBO_SIZE = 216;
+    public static final int STANDARD_UNIFORM_SSBO_SIZE = 220;
     
     /**
      * The standard uniform ssbo
@@ -36,8 +36,9 @@ public class StandardUniformManager {
             vec4 viewPos; //16 bytes
             unsigned int frame; //4 bytes
             float time; //4 bytes
+            float timeOfDay; //4 bytes
         }
-        Totals to 216 bytes
+        Totals to 220 bytes
      */
     private ShaderStorageBuffer standardUniformSSBO;
 
@@ -148,6 +149,9 @@ public class StandardUniformManager {
         //put the engine time
         buff.putFloat((float)Globals.engineState.timekeeper.getCurrentRendererTime());
 
+        //put time of day
+        buff.putFloat(Globals.clientState.clientTemporalService.getTime());
+
 
         buff.flip();
         standardUniformSSBO.upload(Globals.renderingEngine.getOpenGLState());