Orthographic camera, viewpoint, correct aspect ratio

shaders/ObjectGl/vert.glsl

@@ -2,9 +2,11 @@
 
 layout (location = 0) in vec3 aPos;
 
+uniform mat4 projection;
+uniform mat4 view;
 uniform mat4 transform;
 
 void main()
 {
-    gl_Position = transform * vec4(aPos, 1.0);
+    gl_Position = projection * view * transform * vec4(aPos, 1.0);
 }

shaders/ObjectGlColor/vert.glsl

@@ -5,10 +5,12 @@ layout (location = 1) in vec3 aColor;
 
 out vec3 color;
 
+uniform mat4 projection;
+uniform mat4 view;
 uniform mat4 transform;
 
 void main()
 {
-    gl_Position = transform * vec4(aPos, 1.0);
+    gl_Position = projection * view * transform * vec4(aPos, 1.0);
     color = aColor;
 }

shaders/ObjectGlTex/vert.glsl

@@ -5,10 +5,12 @@ layout (location = 2) in vec2 aTexCoord;
 
 out vec2 texCoord;
 
+uniform mat4 projection;
+uniform mat4 view;
 uniform mat4 transform;
 
 void main()
 {
-    gl_Position = transform * vec4(aPos, 1.0);
+    gl_Position = projection * view * transform * vec4(aPos, 1.0);
     texCoord = aTexCoord;
 }

shaders/ObjectGlTexColor/vert.glsl

@@ -7,11 +7,13 @@ layout (location = 2) in vec2 aTexCoord;
 out vec2 texCoord;
 out vec4 color;
 
+uniform mat4 projection;
+uniform mat4 view;
 uniform mat4 transform;
 
 void main()
 {
-    gl_Position = transform * vec4(aPos, 1.0);
+    gl_Position = projection * view * transform * vec4(aPos, 1.0);
     color = vec4(aColor, 1.0f);
     texCoord = aTexCoord;
 }

src/engine/Engine.java

@@ -1,11 +1,7 @@
 package engine;
 
-import engine.math.Primitive;
-import engine.math.Vector3f;
-import engine.object.ObjectGl;
-import engine.object.ObjectGlColor;
-import engine.object.ObjectGlTex;
-import engine.object.ObjectGlTexColor;
+import engine.math.*;
+import engine.object.*;
 import org.lwjgl.glfw.GLFWFramebufferSizeCallback;
 import org.lwjgl.glfw.GLFWVidMode;
 import org.lwjgl.opengl.GL;
@@ -31,6 +27,8 @@ public class Engine {
     public Engine() {
         this.running = false;
         this.objectsGl = new ArrayList<>();
+        ObjectGl.projection = Matrix4f.orthographic(-10.0f, 10.0f, -10.0f * 9.0f / 16.0f, 10.0f * 9.0f / 16.0f, 0.1f, 100.0f);
+        ObjectGl.view = Matrix4f.translate(new Vector3f(0.0f,0.0f,1.0f));
     }
 
     /**
@@ -70,7 +68,7 @@ public class Engine {
 
         glfwSetFramebufferSizeCallback(window, resizeWindow);
 
-        glEnable(GL_DEPTH_TEST); // Z-Buffer
+        glEnable(GL_DEPTH_TEST); // Z-Buffer plus z est petit plus l'objet est proche de la camera limite à 0.1f au dela l'objet disparait
 
         glEnable(GL_BLEND); // Transparence
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -141,16 +139,34 @@ public class Engine {
         // Add objects to render
         List<String> path = new ArrayList<>();
         path.add("textures/awesomeface.png");
-        ObjectGlTexColor cube = new ObjectGlTexColor(-0.5f,0.5f,0.0f,1.0f,1.0f, path, Primitive.stdTexWrap, new float[] {1.0f,1.0f,1.0f});
-        engine.add_objectGl(cube);
+
+        ObjectGl smiley = new ObjectGlTex(-0.5f,0.5f,0.0f,1.0f,1.0f, path, Primitive.stdTexWrap);
+        engine.add_objectGl(smiley);
+
+        ObjectGl smiley2 = new ObjectGlTex(-0.5f,0.5f,0.0f,1.0f,1.0f, path, Primitive.stdTexWrap);
+        engine.add_objectGl(smiley2);
+        smiley2.translate(new Vector3f(0.5f,0.0f,10.0f));
+
+        long timer = System.currentTimeMillis();
+        int frame = 0;
 
         while(engine.isRunning()){
-
             // Game logic should fit here
+            smiley.rotateY(1.0f);
+            smiley2.rotateY(0.8f);
 
             //essential part v
             engine.update();
             engine.render();
+
+            frame++;
+
+            if (System.currentTimeMillis() - timer > 1000) {
+                timer += 1000;
+                System.out.println("FPS: " + frame);
+                frame = 0;
+            }
+
             if(engine.shouldClose()) engine.setRunning(false);
         }
     }

src/engine/object/ObjectGl.java

@@ -15,6 +15,9 @@ public class ObjectGl {
     protected Shader shader;
     protected Matrix4f transform;
 
+    public static Matrix4f projection;
+    public static Matrix4f view;
+
     public ObjectGl(){
 
     }
@@ -51,7 +54,11 @@ public class ObjectGl {
 
     public void render(){
         this.shader.enable();
+
+        this.shader.setUniformMat4f("projection", projection);
+        this.shader.setUniformMat4f("view", view);
         this.shader.setUniformMat4f("transform", this.transform);
+
         this.vertexArray.render();
         this.shader.disable();
     }

src/engine/object/ObjectGlTex.java

@@ -35,6 +35,8 @@ public class ObjectGlTex extends ObjectGl{
     public void render() {
         this.shader.enable();
 
+        this.shader.setUniformMat4f("projection", projection);
+        this.shader.setUniformMat4f("view", view);
         this.shader.setUniformMat4f("transform", this.transform);
 
         for (Texture t : textures){