some little changed

Prism/src/Prism/Core/Math/Ray.h

@@ -15,6 +15,17 @@ namespace Prism
     {
         glm::vec3 Origin, Direction;
 
+    	Ray(const glm::vec3& origin, const glm::vec3& direction)
+    	{
+			Origin = origin;
+    		Direction = direction;
+    	}
+
+    	static Ray Zero()
+    	{
+			return {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f} };
+    	}
+
         bool IntersectsAABB(const AABB& aabb, float& t) const
         {
             glm::vec3 dirfrac;

Prism/src/Prism/Renderer/Camera.cpp

@@ -46,11 +46,9 @@ namespace Prism
         if (Input::IsKeyPressed(Key::LEFT_ALT))
         {
             const glm::vec2& mouse{ Input::GetMouseX(), Input::GetMouseY() };
-            glm::vec2 delta = mouse - m_InitialMousePosition;
+            const glm::vec2 delta = (mouse - m_InitialMousePosition) * 0.003f;
             m_InitialMousePosition = mouse;
 
-            delta *= deltaTime.GetSeconds();
-
             if (Input::IsMouseButtonPressed(GLFW_MOUSE_BUTTON_MIDDLE))
                 MousePan(delta);
             else if (Input::IsMouseButtonPressed(GLFW_MOUSE_BUTTON_LEFT))
@@ -68,17 +66,17 @@ namespace Prism
         dispatcher.Dispatch<MouseScrolledEvent>(PM_BIND_EVENT_FN(Camera::OnMouseScroll));
     }
 
-    glm::vec3 Camera::GetUpDirection()
+    glm::vec3 Camera::GetUpDirection() const
     {
 		return glm::rotate(GetOrientation(), glm::vec3(0.0f, 1.0f, 0.0f));
     }
 
-    glm::vec3 Camera::GetRightDirection()
+    glm::vec3 Camera::GetRightDirection() const
     {
 		return glm::rotate(GetOrientation(), glm::vec3(1.0f, 0.0f, 0.0f));
     }
 
-    glm::vec3 Camera::GetForwardDirection()
+    glm::vec3 Camera::GetForwardDirection() const
     {
 		return glm::rotate(GetOrientation(), glm::vec3(0.0f, 0.0f, -1.0f));
     }
@@ -125,12 +123,12 @@ namespace Prism
         }
     }
 
-    glm::vec3 Camera::CalculatePosition()
+    glm::vec3 Camera::CalculatePosition() const
     {
 		return m_FocalPoint - GetForwardDirection() * m_Distance;
     }
 
-    glm::quat Camera::GetOrientation()
+    glm::quat Camera::GetOrientation() const
     {
 		return glm::quat(glm::vec3(-m_Pitch, -m_Yaw, 0.0f));
     }

Prism/src/Prism/Renderer/Camera.h

@@ -32,14 +32,18 @@ namespace Prism
         const glm::mat4& GetViewMatrix() const { return m_ViewMatrix; }
         glm::mat4 GetViewProjection() const { return m_ProjectionMatrix * m_ViewMatrix; }
 
-        glm::vec3 GetUpDirection();
+        glm::vec3        GetUpDirection() const;
-        glm::vec3 GetRightDirection();
+        glm::vec3        GetRightDirection() const;
-        glm::vec3 GetForwardDirection();
+        glm::vec3        GetForwardDirection() const;
         const glm::vec3& GetPosition() const { return m_Position; }
+        glm::quat        GetOrientation() const;
 
         float GetExposure() const { return m_Exposure; }
         float& GetExposure() { return m_Exposure; }
 
+        float GetPitch() const { return m_Pitch; }
+        float GetYaw() const { return m_Yaw; }
+
     public:
         inline void SetViewportSize(const uint32_t width, const uint32_t height) { m_ViewportWidth = width; m_ViewportHeight = height; }
     private:
@@ -50,8 +54,7 @@ namespace Prism
         void MouseRotate(const glm::vec2& delta);
         void MouseZoom(float delta);
 
-        glm::vec3 CalculatePosition();
+        glm::vec3 CalculatePosition() const;
-        glm::quat GetOrientation();
 
         std::pair<float, float> PanSpeed() const;
         float RotationSpeed() const;