Good first pass at anime outline shader

assets/Data/creatures/human.json

@@ -56,7 +56,8 @@
                 "GRAVITY",
                 "TARGETABLE",
                 "CAN_EQUIP",
-                "INVENTORY"
+                "INVENTORY",
+                "OUTLINE"
             ],
             "visualAttributes" : [],
             "movementSystems" : [

assets/Data/items.json

@@ -30,7 +30,8 @@
                 "GRAVITY",
                 "BLENDER_TRANSFORM",
                 "MELEE",
-                "TARGETABLE"
+                "TARGETABLE",
+                "OUTLINE"
             ],
             "equipClass" : "weapon",
             "idleAnim" : "Sword|Idle",
@@ -55,7 +56,8 @@
             "tokens" : [
                 "GRAVITY",
                 "RANGED",
-                "TARGETABLE"
+                "TARGETABLE",
+                "OUTLINE"
             ],
             "equipClass" : "weapon",
             "collidable": {

assets/Shaders/anime/compositeAnimeOutline.fs

@@ -0,0 +1,30 @@
+#version 420 core
+
+// shader outputs
+layout (location = 0) out vec4 frag;
+
+// color accumulation buffer
+layout (binding = 0) uniform sampler2D texture;
+
+void main(){
+	// fragment coordination
+	ivec2 coords = ivec2(gl_FragCoord.xy);
+ 
+	// fragment color
+	vec4 color = texelFetch(texture, coords, 0);
+
+    float val = color.r;
+
+    // if(color.r < 0.5){z
+    //     discard;
+    // }
+	
+	vec4 outColor = vec4(0);
+
+	if(val == 1){
+		outColor = vec4(0,0,0,1);
+		// outColor.a = 1;
+	}
+
+	frag = outColor;
+}

assets/Shaders/anime/compositeAnimeOutline.vs

@@ -0,0 +1,8 @@
+#version 420 core
+
+// shader inputs
+layout (location = 0) in vec3 position;
+
+void main(){
+	gl_Position = vec4(position, 1.0f);
+}

assets/Shaders/anime/outlineNormals.fs

@@ -0,0 +1,134 @@
+#version 330 core
+out vec4 FragColor;
+  
+in vec2 TexCoords;
+
+uniform sampler2D screenTexture;
+
+const float offset = 1.0 / 2000.0;  
+
+int posToIndex(int x, int y);
+float calculateAveragedEdge(int x, int y, vec3 sT[25]);
+
+void main(){
+    vec2 offsets[25] = vec2[25](
+        vec2(-2 * offset,  2 * offset),
+        vec2(-2 * offset,  1 * offset),
+        vec2(-2 * offset,  0 * offset),
+        vec2(-2 * offset, -1 * offset),
+        vec2(-2 * offset, -2 * offset),
+        vec2(-1 * offset,  2 * offset),
+        vec2(-1 * offset,  1 * offset),
+        vec2(-1 * offset,  0 * offset),
+        vec2(-1 * offset, -1 * offset),
+        vec2(-1 * offset, -2 * offset),
+        vec2( 0 * offset,  2 * offset),
+        vec2( 0 * offset,  1 * offset),
+        vec2( 0 * offset,  0 * offset),
+        vec2( 0 * offset, -1 * offset),
+        vec2( 0 * offset, -2 * offset),
+        vec2( 1 * offset,  2 * offset),
+        vec2( 1 * offset,  1 * offset),
+        vec2( 1 * offset,  0 * offset),
+        vec2( 1 * offset, -1 * offset),
+        vec2( 1 * offset, -2 * offset),
+        vec2( 2 * offset,  2 * offset),
+        vec2( 2 * offset,  1 * offset),
+        vec2( 2 * offset,  0 * offset),
+        vec2( 2 * offset, -1 * offset),
+        vec2( 2 * offset, -2 * offset)
+    );
+    // vec2 offsets[9] = vec2[](
+    //     vec2(-offset,  offset), // top-left
+    //     vec2( 0.0f,    offset), // top-center
+    //     vec2( offset,  offset), // top-right
+    //     vec2(-offset,  0.0f),   // center-left
+    //     vec2( 0.0f,    0.0f),   // center-center
+    //     vec2( offset,  0.0f),   // center-right
+    //     vec2(-offset, -offset), // bottom-left
+    //     vec2( 0.0f,   -offset), // bottom-center
+    //     vec2( offset, -offset)  // bottom-right    
+    // );
+
+    // float kernel[9] = float[](
+    //     -1, -1, -1,
+    //     -1,  9, -1,
+    //     -1, -1, -1
+    // );
+    
+    vec3 sT[25];
+    for(int x = 0; x < 5; x++){
+        for(int y = 0; y < 5; y++){
+            sT[x * 5 + y] = texture(screenTexture, TexCoords.st + offsets[x * 5 + y]).xyz;
+        }
+    }
+    // vec3 Gx = (-sT[0] + sT[2]) + 2 * (-sT[3] + sT[5]) + (-sT[6] + sT[8]);
+    // vec3 Gy = (sT[0] + 2 * sT[1] + sT[2]) - (sT[6] + 2 * sT[7] + sT[8]);
+    // vec3 G = sqrt(Gx * Gx + Gy * Gy);
+    // float averaged = (G.x + G.y + G.z)/3.0;
+    float vals[9];
+    for(int x = 0; x < 3; x++){
+        for(int y = 0; y < 3; y++){
+            vals[x * 3 + y] = calculateAveragedEdge(x,y,sT);
+        }
+    }
+
+    float rVal = 0;
+    float cutoff1 = 0.6;
+    float cutoff2 = 0.1;
+    float cutoff3 = 0.5;
+
+    float surroundAvg = (vals[0] + vals[2] + vals[6] + vals[8])/4.0;
+
+    if(
+        //center
+        vals[4] > cutoff1 && 
+        surroundAvg > cutoff3
+        // //plus
+        // vals[1] > cutoff2 && 
+        // vals[3] > cutoff2 && 
+        // vals[5] > cutoff2 && 
+        // vals[7] > cutoff2 //&&
+        // // //diag
+        // vals[0] < cutoff3 && 
+        // vals[2] < cutoff3 && 
+        // vals[6] < cutoff3 && 
+        // vals[8] < cutoff3
+    ){
+        rVal = min(vals[4],1.0);
+    }
+
+    // rVal = calculateAveragedEdge(1,1,sT);
+    // if(rVal < 0.8){
+    //     rVal = 0;
+    // }
+    // vec3 col = vec3(0.0);
+    // for(int i = 0; i < 9; i++){
+    //     col += sampleTex[i] * kernel[i];
+    // }
+    
+
+    FragColor = vec4(rVal,rVal,rVal,1);
+}
+
+float calculateAveragedEdge(int x, int y, vec3 sT[25]){
+    //compute sobel kernel
+    vec3 Gx = 
+    (-sT[posToIndex(x,y) + 0] + sT[posToIndex(x,y) + 2]) + 
+    2 * (-sT[posToIndex(x,y) + 5] + sT[posToIndex(x,y) + 7]) + 
+    (-sT[posToIndex(x,y) + 10] + sT[posToIndex(x,y)+ 12]);
+    vec3 Gy = 
+    (sT[posToIndex(x,y) + 0] + 2 * sT[posToIndex(x,y) + 1] + sT[posToIndex(x,y) + 2]) - 
+    (sT[posToIndex(x,y) + 10] + 2 * sT[posToIndex(x,y)+ 11] + sT[posToIndex(x,y) + 12]);
+    vec3 G = sqrt(Gx * Gx + Gy * Gy);
+
+    //compute laplacian kernel
+    vec3 L = sT[posToIndex(x,y) + 1] + sT[posToIndex(x,y) + 5] - 4 * sT[posToIndex(x,y) + 6] + sT[posToIndex(x,y) + 7] + sT[posToIndex(x,y) + 11];
+
+    float averaged = abs(G.x + G.y + G.z)/3.0;
+    return averaged;
+}
+
+int posToIndex(int x, int y){
+    return x * 5 + y;
+}

assets/Shaders/anime/outlineNormals.vs

@@ -0,0 +1,10 @@
+#version 330 core
+layout (location = 0) in vec2 aPos;
+layout (location = 1) in vec2 aTexCoords;
+
+out vec2 TexCoords;
+
+void main(){
+    gl_Position = vec4(aPos.x, aPos.y, 0.0, 1.0); 
+    TexCoords = aTexCoords;
+}

assets/Shaders/anime/outlineNormalsColorful.fs

@@ -0,0 +1,45 @@
+#version 330 core
+out vec4 FragColor;
+  
+in vec2 TexCoords;
+
+uniform sampler2D screenTexture;
+
+const float offset = 1.0 / 500.0;  
+
+void main(){
+
+    vec2 offsets[9] = vec2[](
+        vec2(-offset,  offset), // top-left
+        vec2( 0.0f,    offset), // top-center
+        vec2( offset,  offset), // top-right
+        vec2(-offset,  0.0f),   // center-left
+        vec2( 0.0f,    0.0f),   // center-center
+        vec2( offset,  0.0f),   // center-right
+        vec2(-offset, -offset), // bottom-left
+        vec2( 0.0f,   -offset), // bottom-center
+        vec2( offset, -offset)  // bottom-right    
+    );
+
+    // float kernel[9] = float[](
+    //     -1, -1, -1,
+    //     -1,  9, -1,
+    //     -1, -1, -1
+    // );
+    
+    vec3 sT[9];
+    for(int i = 0; i < 9; i++)
+    {
+        sT[i] = vec3(texture(screenTexture, TexCoords.st + offsets[i]));
+    }
+    vec3 Gx = (-sT[0] + sT[2]) + 2 * (-sT[3] + sT[5]) + (-sT[6] + sT[8]);
+    vec3 Gy = (sT[0] + 2 * sT[1] + sT[2]) - (sT[6] + 2 * sT[7] + sT[8]);
+    vec3 G = sqrt(Gx * Gx + Gy * Gy);
+    // vec3 col = vec3(0.0);
+    // for(int i = 0; i < 9; i++){
+    //     col += sampleTex[i] * kernel[i];
+    // }
+    
+
+    FragColor = vec4(G,1);
+}

assets/Shaders/anime/outlineNormalsColorful.vs

@@ -0,0 +1,10 @@
+#version 330 core
+layout (location = 0) in vec2 aPos;
+layout (location = 1) in vec2 aTexCoords;
+
+out vec2 TexCoords;
+
+void main(){
+    gl_Position = vec4(aPos.x, aPos.y, 0.0, 1.0); 
+    TexCoords = aTexCoords;
+}

assets/Shaders/anime/renderNormals.fs

@@ -1,6 +1,6 @@
 #version 330 core
 
-out vec4 FragColor;
+out vec3 FragColor;
 
 
 in vec3 FragPos;
@@ -8,8 +8,10 @@ in vec3 Normal;
 
 
 void main(){
-    vec3 norm = normalize(Normal);
+    vec3 norm = normalize(Normal) / 2.0;
+    norm = vec3(norm.x + 0.5,norm.y + 0.5,norm.z + 0.5);
 
+    // float dist = gl_FragDepth;
 
-    FragColor = vec4(norm,1.0);
+    FragColor = norm;
 }

assets/Shaders/anime/renderNormals.vs

@@ -34,19 +34,22 @@ out vec3 FragPos;
 
 void main() {
 
-    
-
-    //calculate bone transform
-    mat4 BoneTransform = (bones[int(aIndex[0])] * aWeights[0]);
-        BoneTransform = BoneTransform + (bones[int(aIndex[1])] * aWeights[1]);
-        BoneTransform = BoneTransform + (bones[int(aIndex[2])] * aWeights[2]);
-        BoneTransform = BoneTransform + (bones[int(aIndex[3])] * aWeights[3]);
-
-    
     //apply bone transform to position vectors
-    vec4 FinalVertex = BoneTransform * vec4(aPos, 1.0);
+    vec4 FinalVertex = vec4(aPos, 1.0);
-    vec4 FinalNormal = BoneTransform * vec4(aNormal, 1.0);
+    vec4 FinalNormal = vec4(aNormal, 1.0);
 
+    if(hasBones==1){
+        //calculate bone transform
+        mat4 BoneTransform = (bones[int(aIndex[0])] * aWeights[0]);
+            BoneTransform = BoneTransform + (bones[int(aIndex[1])] * aWeights[1]);
+            BoneTransform = BoneTransform + (bones[int(aIndex[2])] * aWeights[2]);
+            BoneTransform = BoneTransform + (bones[int(aIndex[3])] * aWeights[3]);
+
+        
+        //apply bone transform to position vectors
+        FinalVertex = BoneTransform * vec4(aPos, 1.0);
+        FinalNormal = BoneTransform * vec4(aNormal, 1.0);
+    }
     
     //make sure the W component is 1.0
     FinalVertex = vec4(FinalVertex.xyz, 1.0);

assets/Shaders/oit/composite.fs

@@ -13,19 +13,16 @@ layout (binding = 1) uniform sampler2D reveal;
 const float EPSILON = 0.00001f;
 
 // caluclate floating point numbers equality accurately
-bool isApproximatelyEqual(float a, float b)
+bool isApproximatelyEqual(float a, float b){
-{
 	return abs(a - b) <= (abs(a) < abs(b) ? abs(b) : abs(a)) * EPSILON;
 }
 
 // get the max value between three values
-float max3(vec3 v) 
+float max3(vec3 v) {
-{
 	return max(max(v.x, v.y), v.z);
 }
 
-void main()
+void main(){
-{
 	// fragment coordination
 	ivec2 coords = ivec2(gl_FragCoord.xy);
 	

assets/Shaders/oit/composite.vs

@@ -3,7 +3,6 @@
 // shader inputs
 layout (location = 0) in vec3 position;
 
-void main()
+void main(){
-{
 	gl_Position = vec4(position, 1.0f);
 }

src/main/java/electrosphere/engine/LoadingThread.java

@@ -750,6 +750,7 @@ public class LoadingThread extends Thread {
         Entity shrine = EntityUtils.spawnDrawableEntity("Models/shrine2.fbx");
         EntityUtils.getPosition(shrine).set(15,0,15);
         EntityUtils.getRotation(shrine).rotationX((float)-Math.PI/2.0f);
+        shrine.putData(EntityDataStrings.DRAW_OUTLINE, true);
 
 
 //        goblin = CreatureUtils.spawnBasicCreature("Goblin");

src/main/java/electrosphere/entity/EntityDataStrings.java

@@ -20,6 +20,7 @@ public class EntityDataStrings {
     public static final String DRAW_TRANSPARENT_PASS = "drawTransparentPass";
     public static final String DRAW_CAST_SHADOW = "castShadow";
     public static final String DRAW_VOLUMETRIC = "drawVolumetric";
+    public static final String DRAW_OUTLINE = "drawOutline";
     
     
     /*

src/main/java/electrosphere/entity/types/creature/CreatureUtils.java

@@ -202,6 +202,9 @@ public class CreatureUtils {
                 case "INVENTORY":
                 rVal.putData(EntityDataStrings.NATURAL_INVENTORY,UnrelationalInventoryState.createUnrelationalInventory(10));
                 break;
+                case "OUTLINE":
+                rVal.putData(EntityDataStrings.DRAW_OUTLINE, true);
+                break;
             }
         }
         //variants

src/main/java/electrosphere/entity/types/item/ItemUtils.java

@@ -109,6 +109,9 @@ public class ItemUtils {
                 case "TARGETABLE":
                     Globals.entityManager.registerTargetableEntity(rVal);
                     break;
+                case "OUTLINE":
+                rVal.putData(EntityDataStrings.DRAW_OUTLINE, true);
+                break;
             }
         }
         if(item.getEquipWhitelist() != null){

src/main/java/electrosphere/game/server/terrain/generation/TerrainGen.java

@@ -73,82 +73,82 @@ public class TerrainGen {
     public static int current_Region_X = 0;
     public static int current_Region_Y = 0;
     
-    public static void main(String args[]){
+    // public static void main(String args[]){
                 
-        TerrainGenerator tergen = new TerrainGenerator();
+    //     TerrainGenerator tergen = new TerrainGenerator();
-        tergen.set_Dimension(DIMENSION);
+    //     tergen.set_Dimension(DIMENSION);
-        tergen.set_Lifespan(15000);
+    //     tergen.set_Lifespan(15000);
-        tergen.run();
+    //     tergen.run();
-        elevation = tergen.get_Terrain();
+    //     elevation = tergen.get_Terrain();
         
         
-        elevation = interpolate_Elevation_Raws(elevation);
+    //     elevation = interpolate_Elevation_Raws(elevation);
-        DIMENSION = DIMENSION * 2;
+    //     DIMENSION = DIMENSION * 2;
                 
-        elevation = compression_filter(elevation);
+    //     elevation = compression_filter(elevation);
-        elevation = three_halves_filter(elevation);
+    //     elevation = three_halves_filter(elevation);
-        elevation = smooth_Terrain_Further(elevation);
+    //     elevation = smooth_Terrain_Further(elevation);
-        elevation = small_Kernel_Sharpen(elevation);
+    //     elevation = small_Kernel_Sharpen(elevation);
-        elevation = smooth_Terrain_Further(elevation);
+    //     elevation = smooth_Terrain_Further(elevation);
-        elevation = three_halves_filter(elevation);
+    //     elevation = three_halves_filter(elevation);
-        elevation = small_Kernel_Smooth(elevation);
+    //     elevation = small_Kernel_Smooth(elevation);
-        elevation = small_Kernel_Sharpen(elevation);
+    //     elevation = small_Kernel_Sharpen(elevation);
-        elevation = smooth_Terrain_Further(elevation);
+    //     elevation = smooth_Terrain_Further(elevation);
-        elevation = smooth_Terrain_Further(elevation);
+    //     elevation = smooth_Terrain_Further(elevation);
-        elevation = land_exponential_filter(elevation);
+    //     elevation = land_exponential_filter(elevation);
-        elevation = land_exponential_filter(elevation);
+    //     elevation = land_exponential_filter(elevation);
-        elevation = land_exponential_filter(elevation);
+    //     elevation = land_exponential_filter(elevation);
-        elevation = land_exponential_filter(elevation);
+    //     elevation = land_exponential_filter(elevation);
 
-        mountainParsed = new int[DIMENSION][DIMENSION];
+    //     mountainParsed = new int[DIMENSION][DIMENSION];
-        oceanParsed = new int[DIMENSION][DIMENSION];
+    //     oceanParsed = new int[DIMENSION][DIMENSION];
-        continentIdField = new int[DIMENSION][DIMENSION];
+    //     continentIdField = new int[DIMENSION][DIMENSION];
         
-        mountainParsed = parse_Mountainscapes(elevation);
+    //     mountainParsed = parse_Mountainscapes(elevation);
         
-        oceanParsed = parse_Oceans(elevation);
+    //     oceanParsed = parse_Oceans(elevation);
         
-        wind_field = map_Wind_Field();
+    //     wind_field = map_Wind_Field();
                 
-        precipitationChart = calculate_Rain_Shadows(elevation,oceanParsed,wind_field);
+    //     precipitationChart = calculate_Rain_Shadows(elevation,oceanParsed,wind_field);
                 
-        temperatureChart = generate_Temperature_Chart();
+    //     temperatureChart = generate_Temperature_Chart();
         
-        climateCategory = infer_Climate_Category();
+    //     climateCategory = infer_Climate_Category();
                 
-        determine_Continents();
+    //     determine_Continents();
         
-        fill_Continents();
+    //     fill_Continents();
         
-        //for display tbh
+    //     //for display tbh
-        anchor_To_Real_Region();
+    //     anchor_To_Real_Region();
         
         
-        display_toggle = 0;
+    //     display_toggle = 0;
         
-        create_Frame();
+    //     create_Frame();
         
-        while(true){
+    //     while(true){
-            if(brightness_increasing){
+    //         if(brightness_increasing){
-                if(brightness < 100){
+    //             if(brightness < 100){
-                    brightness++;
+    //                 brightness++;
-                } else {
+    //             } else {
-                }
+    //             }
-            } else {
+    //         } else {
-                if(brightness > 0){
+    //             if(brightness > 0){
-                    brightness--;
+    //                 brightness--;
-                } else {
+    //             } else {
-                    brightness_increasing = true;
+    //                 brightness_increasing = true;
-                    display_toggle++;
+    //                 display_toggle++;
-                    if(display_toggle > 1){
+    //                 if(display_toggle > 1){
-                        display_toggle = 0;
+    //                     display_toggle = 0;
-                    }
+    //                 }
-                }
+    //             }
-            }
+    //         }
-            frame.repaint();
+    //         frame.repaint();
-            Utilities.sleep(10);
+    //         Utilities.sleep(10);
-        }
+    //     }
-    }
+    // }
     
     public TerrainModel generateModel(){
         TerrainModel rVal;

src/main/java/electrosphere/renderer/Mesh.java

@@ -852,10 +852,10 @@ public class Mesh {
                     incrementer++;
                 }
             } else {
-                glUniform1i(Globals.renderingEngine.getActiveShader().shaderVertexHasBonesLoc, 0);
+                glUniform1i(glGetUniformLocation(Globals.renderingEngine.getActiveShader().shaderProgram, "hasBones"), 0);
             }
         } else {
-            glUniform1i(Globals.renderingEngine.getActiveShader().shaderVertexHasBonesLoc, 0);
+            glUniform1i(glGetUniformLocation(Globals.renderingEngine.getActiveShader().shaderProgram, "hasBones"), 0);
         }
         
         

src/main/java/electrosphere/renderer/RenderingEngine.java

@@ -178,6 +178,18 @@ public class RenderingEngine {
     // static Texture volumeVerticalFrontfaceTexture;
     // static Framebuffer volumeVerticalFrontfaceBuffer;
 
+    /*
+    Post processing effects (ie kernels) textures, framebuffers, shaders
+    */
+    static Texture normalsOutlineTexture;
+    static Framebuffer normalsOutlineFrambuffer;
+    static ShaderProgram normalsOutlineShader;
+
+    /*
+    compositing functions
+    */
+    static ShaderProgram compositeAnimeOutline;
+    
 //    public static boolean renderHitboxes = false;
 //    public static boolean renderPhysics = false;
 
@@ -187,7 +199,7 @@ public class RenderingEngine {
     
     ShaderProgram activeProgram;
 
-    static int outputFramebuffer = 0;
+    static int outputFramebuffer = 6;
     
     
     public void createOpenglContext(){
@@ -312,7 +324,8 @@ public class RenderingEngine {
     static ShaderProgram renderNormalsShader;
         */
         gameImageNormalsTexture = FramebufferUtils.generateScreenTextureColor(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
-        gameImageNormalsFramebuffer = FramebufferUtils.generateScreenTextureFramebuffer(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT, gameImageNormalsTexture);
+        Texture gameImageNormalsDepthTexture = FramebufferUtils.generateScreenTextureDepth(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
+        gameImageNormalsFramebuffer = FramebufferUtils.generateScreenTextureFramebuffer(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT, gameImageNormalsTexture, gameImageNormalsDepthTexture);
         renderNormalsShader = ShaderProgram.loadSpecificShader("Shaders/anime/renderNormals.vs", "Shaders/anime/renderNormals.fs");
 
         //
@@ -328,6 +341,24 @@ public class RenderingEngine {
         //projection matrices
         nearVolumeProjectionMatrix.setPerspective((float)(Globals.verticalFOV * Math.PI /180.0f), (float)Globals.WINDOW_WIDTH / (float)Globals.WINDOW_HEIGHT, 0.1f, 100);
 
+        //
+        //Postprocessing textures and buffers
+        //
+        /*
+        static Texture normalsOutlineTexture;
+    static Framebuffer normalsOutlineFrambuffer;
+    static ShaderProgram normalsOutlineShader;
+        */
+        normalsOutlineTexture = FramebufferUtils.generateScreenTextureColorAlpha(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
+        normalsOutlineFrambuffer = FramebufferUtils.generateScreenTextureFramebuffer(Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT, normalsOutlineTexture);
+        // normalsOutlineShader = ShaderProgram.loadSpecificShader("Shaders/anime/outlineNormals.vs", "Shaders/anime/outlineNormals.fs");
+        Globals.assetManager.addShaderToQueue("Shaders/anime/outlineNormals.vs", "Shaders/anime/outlineNormals.fs");
+
+        //
+        //Compositing shaders
+        //
+        compositeAnimeOutline = ShaderProgram.loadSpecificShader("Shaders/anime/compositeAnimeOutline.vs", "Shaders/anime/compositeAnimeOutline.fs");
+
 
         //instantiate light manager
         lightManager = new LightManager();
@@ -432,7 +463,8 @@ public class RenderingEngine {
         if(Globals.RENDER_FLAG_RENDER_SCREEN_FRAMEBUFFER_CONTENT){
             renderGameContent();
             renderDebugContent();
-            renderNormals();
+            renderNormalsForOutline();
+            applyKernelsAndPostprocessing();
             compositeGameImage();
         }
         
@@ -822,7 +854,7 @@ public class RenderingEngine {
         }
     }
 
-    static void renderNormals(){
+    static void renderNormalsForOutline(){
 
         /*
         gameImageNormalsTexture;
@@ -833,8 +865,11 @@ public class RenderingEngine {
         //bind screen fbo
         gameImageNormalsFramebuffer.bind();
         glEnable(GL_DEPTH_TEST);
+        glDisable(GL_BLEND);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
         glDepthFunc(GL_LESS);
         glDepthMask(true);
+        
         glViewport(0, 0, Globals.WINDOW_WIDTH, Globals.WINDOW_HEIGHT);
         
         ///
@@ -855,6 +890,7 @@ public class RenderingEngine {
             if(
                 (boolean)currentEntity.getData(EntityDataStrings.DATA_STRING_DRAW) && 
                 currentEntity.getData(EntityDataStrings.DRAW_SOLID_PASS) != null && 
+                currentEntity.getData(EntityDataStrings.DRAW_OUTLINE) != null &&
                 drawPoint(cameraPos,new Vector3f((float)position.x,(float)position.y,(float)position.z))
                 ){
                 //fetch actor
@@ -874,9 +910,41 @@ public class RenderingEngine {
         }
     }
 
+    static void applyKernelsAndPostprocessing(){
+        //
+        //      Outline normals
+        //
+        glDepthFunc(GL_ALWAYS);
+        glDepthMask(false);
+        glEnable(GL_BLEND);
+        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+        
+        normalsOutlineFrambuffer.bind();
+        ShaderProgram program = Globals.assetManager.fetchShader("Shaders/anime/outlineNormals.vs", null, "Shaders/anime/outlineNormals.fs");
+        if(program != null){
+            Globals.renderingEngine.setActiveShader(program);
+
+            glBindVertexArray(screenTextureVAO);
+
+            glActiveTexture(GL_TEXTURE0);
+            glBindTexture(GL_TEXTURE_2D, 0);
+            glActiveTexture(GL_TEXTURE1);
+            glBindTexture(GL_TEXTURE_2D, 0);
+            glActiveTexture(GL_TEXTURE2);
+            glBindTexture(GL_TEXTURE_2D, 0);
+            glActiveTexture(GL_TEXTURE3);
+            glBindTexture(GL_TEXTURE_2D, 0);
+            glActiveTexture(GL_TEXTURE0);
+            glBindTexture(GL_TEXTURE_2D, gameImageNormalsTexture.getTexturePointer());
+
+            glDrawArrays(GL_TRIANGLES, 0, 6);
+            glBindVertexArray(0);
+        }
+    }
+
     static void compositeGameImage(){
         //
-        //      Pass Three: Composite transparency on top of solids
+        //Setup to render screen textures & bind screen framebuffer
         //
         glDepthFunc(GL_ALWAYS);
         // glDepthMask(false);
@@ -884,10 +952,33 @@ public class RenderingEngine {
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
         
         screenFramebuffer.bind();
-        Globals.renderingEngine.setActiveShader(oitCompositeProgram);
         
         glBindVertexArray(screenTextureVAO);
 
+
+        //
+        //Draw anime outline
+        //
+        Globals.renderingEngine.setActiveShader(compositeAnimeOutline);
+
+        glActiveTexture(GL_TEXTURE0);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glActiveTexture(GL_TEXTURE1);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glActiveTexture(GL_TEXTURE2);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glActiveTexture(GL_TEXTURE3);
+        glBindTexture(GL_TEXTURE_2D, 0);
+        glActiveTexture(GL_TEXTURE0);
+        glBindTexture(GL_TEXTURE_2D, normalsOutlineTexture.getTexturePointer());
+
+        glDrawArrays(GL_TRIANGLES, 0, 6);
+
+        //
+        //Composite transparency on top of solids
+        //
+        Globals.renderingEngine.setActiveShader(oitCompositeProgram);
+
         glActiveTexture(GL_TEXTURE0);
         glBindTexture(GL_TEXTURE_2D, 0);
         glActiveTexture(GL_TEXTURE1);
@@ -903,6 +994,9 @@ public class RenderingEngine {
 
         glDrawArrays(GL_TRIANGLES, 0, 6);
         glBindVertexArray(0);
+
+
+        
     }
     
     static void renderScreenFramebuffer(){
@@ -948,9 +1042,7 @@ public class RenderingEngine {
         } else if(outputFramebuffer == 5){
             glBindTexture(GL_TEXTURE_2D, gameImageNormalsTexture.getTexturePointer());
         } else if(outputFramebuffer == 6){
-            Globals.renderingEngine.setActiveShader(drawChannel);
+            glBindTexture(GL_TEXTURE_2D, normalsOutlineTexture.getTexturePointer());
-            glUniform1f(glGetUniformLocation(Globals.renderingEngine.getActiveShader().shaderProgram, "channel"),0);
-            glBindTexture(GL_TEXTURE_2D, transparencyRevealageTexture.getTexturePointer());
         } else if(outputFramebuffer == 7){
             Globals.renderingEngine.setActiveShader(drawChannel);
             glUniform1f(glGetUniformLocation(Globals.renderingEngine.getActiveShader().shaderProgram, "channel"),4);

src/main/java/electrosphere/renderer/framebuffer/FramebufferUtils.java

@@ -78,6 +78,21 @@ public class FramebufferUtils {
         return texture;
     }
 
+    public static Texture generateScreenTextureColorAlpha(int width, int height){
+        int texturePtr = glGenTextures();
+        glBindTexture(GL_TEXTURE_2D,texturePtr);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+        //these make sure the texture actually clamps to the borders of the quad
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+
+        Texture texture = new Texture(texturePtr);
+
+        return texture;
+    }
+
     public static Texture generateScreenTextureDepth(int width, int height){
         int texturePtr = glGenTextures();
         glBindTexture(GL_TEXTURE_2D,texturePtr);