Render Graph concept started!

engine/include/sophia/components.hpp

@@ -34,4 +34,36 @@ struct MeshComponent {
   MeshHandle handle;
 };
 
+struct CameraComponent {
+  struct Orthographic {
+    float height = 10.f;
+    float nearPlane = -1.f;
+    float farPlane = 1.f;
+  };
+
+  struct Perspective {
+    float fov = glm::radians(60.f);
+    float nearPlane = 0.1f;
+    float farPlane = 100.f;
+  };
+
+  enum class Projection { Orthographic, Perspective };
+
+  Projection projection = Projection::Orthographic;
+  Orthographic ortho;
+  Perspective perspective;
+
+  glm::mat4 getProjection(float aspect) const {
+    if (projection == Projection::Perspective) {
+      return glm::perspective(perspective.fov, aspect, perspective.nearPlane,
+                              perspective.farPlane);
+    }
+
+    float halfHeight = ortho.height / 2.f;
+    float halfWidth = halfHeight * aspect;
+    return glm::ortho(-halfWidth, halfWidth, -halfHeight, halfHeight,
+                      ortho.nearPlane, ortho.farPlane);
+  }
+};
+
 }  // namespace sophia