+feat ( début reflection )

enginecustom/Cameraclass.cpp

@@ -109,4 +109,63 @@ void CameraClass::GetViewMatrix(XMMATRIX& viewMatrix)
 {
 	viewMatrix = m_viewMatrix;
 	return;
+}
+
+void CameraClass::RenderReflection(float height)
+{
+	XMFLOAT3 up, position, lookAt;
+	XMVECTOR upVector, positionVector, lookAtVector;
+	float yaw, pitch, roll;
+	XMMATRIX rotationMatrix;
+
+
+	// Setup the vector that points upwards.
+	up.x = 0.0f;
+	up.y = 1.0f;
+	up.z = 0.0f;
+
+	// Load it into a XMVECTOR structure.
+	upVector = XMLoadFloat3(&up);
+
+	// Setup the position of the camera in the world.
+	position.x = m_positionX;
+	position.y = -m_positionY + (height * 2.0f);
+	position.z = m_positionZ;
+
+	// Load it into a XMVECTOR structure.
+	positionVector = XMLoadFloat3(&position);
+
+	// Setup where the camera is looking by default.
+	lookAt.x = 0.0f;
+	lookAt.y = 0.0f;
+	lookAt.z = 1.0f;
+
+	// Load it into a XMVECTOR structure.
+	lookAtVector = XMLoadFloat3(&lookAt);
+
+	// Set the yaw (Y axis), pitch (X axis), and roll (Z axis) rotations in radians.
+	pitch = (-1.0f * m_rotationX) * 0.0174532925f;  // Invert for reflection
+	yaw = m_rotationY * 0.0174532925f;
+	roll = m_rotationZ * 0.0174532925f;
+
+	// Create the rotation matrix from the yaw, pitch, and roll values.
+	rotationMatrix = XMMatrixRotationRollPitchYaw(pitch, yaw, roll);
+
+	// Transform the lookAt and up vector by the rotation matrix so the view is correctly rotated at the origin.
+	lookAtVector = XMVector3TransformCoord(lookAtVector, rotationMatrix);
+	upVector = XMVector3TransformCoord(upVector, rotationMatrix);
+
+	// Translate the rotated camera position to the location of the viewer.
+	lookAtVector = XMVectorAdd(positionVector, lookAtVector);
+
+	// Finally create the view matrix from the three updated vectors.
+	m_reflectionViewMatrix = XMMatrixLookAtLH(positionVector, lookAtVector, upVector);
+
+	return;
+}
+
+void CameraClass::GetReflectionViewMatrix(XMMATRIX& reflectionViewMatrix)
+{
+	reflectionViewMatrix = m_reflectionViewMatrix;
+	return;
 }